Here is my weekly weather quiz question. What is “Active Storage Capacity?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) is temporarily being replaced by high pressure (Shaded “Arch” shape with blue arrows) which brought sunshine and freezing fog to us to make it at least look like a “White Christmas” despite the fact that we didn’t get any snow. Low pressure is returning though. The days 1-3 graphic shows the frontal system moving over the Pacific Northwest overnight and Tuesday. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Friday and again Sunday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 33 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 27 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER STORM WARNING  IS IN EFFECT FROM 6 PM THIS EVENING THROUGH MIDNIGHT TUESDAY NIGHT FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A HIGH WIND WARNING IS IN EFFECT FROM 1 AM TUESDAY UNTIL 4 AM WEDNESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR THE COAST RANGE OF NORTHWEST OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT UNTIL 2 AM TUESDAY FOR THE WESTERN COLUMBIA RIVER GORGE.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT UNTIL 6 AM TUESDAY FOR THE UPPER HOOD RIVER VALLEY.
•  A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT  UNTIL 4 AM TUESDAY FOR THE CENTRAL COLUMBIA RIVER GORGE AND THE NORTHERN OREGON CASCADE FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy and a bit cooler with rain tonight (0.25 in. of rain possible),
• Mostly cloudy with showers likely (70% ) and a bit warmer Tuesday (0.10 in. of rain possible), cloudy with a good (50%) chance of showers at night,
• A slight (20%) chance of AM showers, a mix of clouds and sun and a bit cooler Wednesday afternoon, partly cloudy in the evening,  mostly cloudy late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy Thursday afternoon, then partly cloudy with a (30%) chance of showers at night.
• lows 38-33 highs near 46-44.
• Mostly cloudy and a bit cooler with a (40%) chance of rain Friday, partly cloudy with a slight (20%) chance of rain and snow Friday night,
• Partly cloudy and a bit warmer Saturday, mostly cloudy with a good (50%) chance of rain Saturday night and a bit cooler Sunday (New Year’s Day), a (40%) chance of rain and snow showers Sunday night (snow level 1,000 ft.),
• Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of rain and snow showers Monday.
• highs 40-32 lows 30-33 cooling back to 30 Sunday night. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with a (40%) chance of evening snow, rain late tonight (under 0.10 in. of rain possible, snow level 1,500 ft. rising to 2,500 ft. late at night),
• Mostly cloudy with rain and a bit warmer Tuesday (0.25 in. of rain possible, snow level 3,500 ft.), showers likely (70%) Tuesday night (0.10 in. of rain possible, snow level 3,500 ft.),
• Mostly cloudy Wednesday AM, just partly cloudy and a bit cooler in the afternoon, partly cloudy with areas of fog late Wednesday night,
• Mostly cloudy with areas of fog Thursday AM, partly cloudy and a bit cooler in the afternoon, then partly cloudy with a slight (20%) chance of rain late Thursday night.
• lows 39-36 highs near 46.
• Mostly cloudy with a (30%) chance of rain and a bit cooler Friday, a (30%) chance of rain and snow  at night,
• Just mostly cloudy and a bit cooler Saturday, mostly cloudy with a (30%) chance of evening rain, mostly cloudy with a good (50%) chance of rain and snow late Saturday night,
• Cloudy with a good (50%) chance of rain and snow Sunday (New Year’s Day) and Sunday night,
• Then mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers Monday.
• highs 44-36 lows 30-33 cooling back to 30 Sunday night. (seasonal averages high 48 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with evening rain, rain tonight (0.50 in. of rain possible),
• Rain and a bit warmer Tuesday (0.25 in. of rain possible), cloudy with evening showers likely (60%), a good (50%) chance of showers late Tuesday night (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of coastal showers Wednesday AM, just mostly cloudy and a bit cooler in the afternoon, partly cloudy with areas of fog late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy and a bit warmer Thursday afternoon, then partly cloudy with a slight (20%) chance of rain late Thursday night.
• lows 43-39 highs 52-50 warming back to 52 Thursday.
• Mostly cloudy with a (40%) chance of rain and a bit cooler Friday and at night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Saturday, mostly cloudy with a good (50%) chance of rain Saturday night and Sunday (New Year’s Day), a good (50%) chance of evening rain, a good (50%) chance of rain and snow Sunday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Monday.
• highs 48-42 lows 36-38 cooling to 35 Sunday night. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of evening snow, snow late tonight (0.50 in. of rain possible, 3-6 in. of snow possible),
• Mostly cloudy with rain and snow in the AM, rain and snow showers and a bit warmer Tuesday afternoon (0.50 in. of rain possible, 3-6 in. of snow possible), rain and snow showers at night (0.10 in. of rain possible, 2 in. of snow possible),
• Mostly cloudy with a slight (20%) chance of AM rain and snow showers, partly cloudy and a bit cooler Wednesday afternoon and at night,
• Mostly sunny and a bit warmer Thursday, then partly cloudy with a slight (20%) chance of showers Thursday night.
• snow level at the surface tonight, 4,000 ft. Tuesday, 3,500 ft. Tuesday night, 3,000 ft. Wednesday, free air freezing level 5,000 ft. Wednesday night, 6,000 ft. Thursday, then snow level 5,500 ft. Thursday night.
• lows near 23 highs 34-38.
• A mix of clouds and sun with a (40%) chance of rain and snow a bit cooler Friday, partly cloudy with a (30%) chance of  snow Friday night,
• Mostly sunny and a bit warmer Saturday, becoming mostly cloudy with a good (50%) chance of snow Saturday night,
• Snow likely (70%) and a bit cooler Sunday (New Year’s Day), cloudy with a good (50%) chance of snow showers at night,
• Then mostly cloudy and cooler with a (40%) chance of snow showers Monday.
• free air freezing level 6,000 ft. Thursday, 6,500 ft. Thursday night, snow level 4,500 ft. Friday, then at the surface Friday night through Sunday (New Year’s Day).
• highs 32-35 cooling to 22 Monday lows 19-14.

 

 

________________

 

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

 

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is “Active Storage Capacity?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) is temporarily being replaced by high pressure (Shaded “Arch” shape with blue arrows) which brought sunshine and freezing fog to us to make it at least look like a “White Christmas” despite the fact that we didn’t get any snow. Low pressure is returning though. The days 1-3 graphic shows the frontal system moving over the Pacific Northwest overnight and Tuesday. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Friday and again Sunday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 48 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 53 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER STORM WARNING  IS IN EFFECT FROM 6 PM THIS EVENING THROUGH MIDNIGHT TUESDAY NIGHT FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR THE COAST RANGE OF NORTHWEST OREGON,
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT UNTIL 2 AM TUESDAY FOR THE WESTERN COLUMBIA RIVER GORGE.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT UNTIL 6 AM TUESDAY FOR THE UPPER HOOD RIVER VALLEY.
•  A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM TONIGHT  UNTIL 4 AM TUESDAY FOR THE CENTRAL COLUMBIA RIVER GORGE AND THE NORTHERN OREGON CASCADE FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A mix of clouds and sun with patchy AM fog, increasing clouds to mostly cloudy and a bit cooler with a (30%) chance of rain this afternoon (under 0.10 in. of rain possible), increasing clouds with rain tonight (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit warmer Tuesday, showers likely (70%) at night,
• Mostly cloudy with a (40%) chance of AM showers, then just mostly cloudy and a bit cooler Wednesday afternoon and Wednesday night.
• highs near 42-47 cooling to 43 Wednesday lows 38-33.
• A mix of clouds and sun and a bit cooler Thursday, partly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Friday, a (30%) chance of rain Friday night,
• A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of rain Sunday (New Year’s Day).
• highs 42-38 warming back to 42 Saturday cooling to 38 Sunday lows 32-29 warming back to 33 Saturday night. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with patchy AM freezing fog, partly cloudy and a bit cooler this afternoon, becoming cloudy with a (40%) chance of evening rain and snow, rain likely (60%) late tonight (under 0.10 in. of rain possible, snow level 2,500 ft. rising to 3,000 ft. late at night),
• Mostly cloudy with showers and a bit warmer Tuesday (AM snow level 3,500 ft.), showers likely (70%) Tuesday night (snow level 3,500 ft. late at night),
• Mostly cloudy with a slight (20%) chance of AM rain and snow showers, then mostly cloudy with areas of fog late Wednesday night.
• highs 42-49 cooling to 44 Wednesday lows 39-36.
• Mostly cloudy with areas of fog and a bit cooler Thursday, partly cloudy with areas of fog and patchy freezing fog late Thursday night,
• Mostly cloudy with a (30%) chance of rain and a bit warmer Friday and in the evening, a (30%) chance of rain and snow late at night,
• Just mostly cloudy and a bit cooler Saturday, mostly cloudy with a (30%) chance of evening rain, then mostly cloudy with a (30%) chance of rain and snow Saturday night and Sunday (New Year’s Day).
• highs 43-45 cooling to 43 Saturday lows 36-33 warming back to 36 Saturday night. (seasonal averages high 48 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear with patchy inland fog and freezing fog this AM, just mostly cloudy and a bit warmer this afternoon, becoming cloudy with a (40%) chance of evening rain, coastal rain late tonight while inland rain likely (70%) late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit warmer Tuesday, showers  likely (60%) Tuesday night,
• A slight (20%) chance of showers Wednesday AM, then mostly cloudy with areas of fog late Wednesday night.
• highs 49-52 cooling to 50 Wednesday lows 43-39.
• Mostly cloudy with areas of fog and a bit warmer Thursday and late Thursday night,
• Mostly cloudy with a (40%) chance of rain and a bit cooler Friday, a (30%) chance of rain at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday, then mostly cloudy with a (40%) chance of rain Saturday night and Sunday (New Year’s Day).
• highs 53-48 lows 42-37 warming to 48 Saturday. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• A mix of clouds and sun and a bit warmer today, becoming mostly cloudy with a good (50%) chance of evening snow, snow late tonight (4-8 in. of snow possible),
• Mostly cloudy with rain and snow showers, breezy (Wind: SW 15-25 mph) and a bit warmer Tuesday, snow showers at night,
• Mostly cloudy with a good (50%) chance of rain and snow showers and a bit cooler Wednesday, then partly cloudy with a slight (20%) chance of rain and snow showers Wednesday night.
• free air freezing level at the surface this AM, snow level 2,500 ft. tonight, 4,000 ft. Tuesday, 4,000 ft. falling to 3,000 ft. Tuesday night, 3,000 ft. Wednesday, then 4,000 ft. Wednesday night.
• highs 32-34 lows 22-24.
• Partly cloudy and a bit warmer Thursday, partly cloudy at night,
• Partly cloudy with a good (50%) chance of rain and snow Friday,mostly cloudy with a (30%) chance of  snow Friday night,
• A mix of clouds and sun with a slight (20%) chance of rain and snow showers Saturday, mostly cloudy with a (40%) chance of snow Saturday night,
• Then mostly cloudy with a good (50%) chance of snow Sunday.
• free air freezing level 6,000 ft. Thursday, 6,500 ft. Thursday night, snow level 4,500 ft. Friday, then at the surface Friday night through Sunday (New Year’s Day).
• highs 37-30 lows 24-16 warming to 18 Saturday night.

 

 

________________

 

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

 

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is the“Action Stage?” Here is the correct answer. Action Stage is the stage which, when reached by a rising stream, represents the level where the NWS or a partner/user needs to take some type of mitigation action in preparation for possible signif­icant hydrologic activity. The appropriate action is usually defined in a weather forecast office (WFO) hydrologic services manual. Action stage can be the same as forecast issuance stage (see / forecast issuance stage/). I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) is temporarily being replaced by high pressure (Shaded “Arch” shape with blue arrows) which brought sunshine and freezing fog to us to make it at least look like a “White Christmas” despite the fact that we didn’t get any snow. Low pressure does return though. The days 1-3 graphic shows the frontal system moving Southeast away from us. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Tuesday and again Friday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 83 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 119 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 85 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER STORM WATCH FOR SNOW IS IN EFFECT FOR MONDAY NIGHT FOR THE WESTERN COLUMBIA RIVER GORGE AND THE CENTRAL COLUMBIA RIVER GORGE.
• A WINTER STORM WATCH FOR SNOW IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A FROST ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM MONDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with areas of freezing fog late tonight,
• A mix of clouds and sun with patchy AM fog, increasing clouds to mostly cloudy and a bit cooler with a (30%) chance of rain Monday afternoon (under 0.10 in. of rain possible), increasing clouds with rain at night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit warmer Tuesday, showers likely (70%) at night,
• Mostly cloudy with a (40%) chance of AM showers, then just mostly cloudy and a bit cooler Wednesday afternoon and Wednesday night.
• lows 29-38 cooling to 33 Wednesday night highs near 42-47 cooling to 43 Wednesday.
• A mix of clouds and sun and a bit cooler Thursday, partly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Friday, a (30%) chance of rain Friday night,
• A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of rain Sunday (New Year’s Day).
• highs 42-38 warming back to 42 Saturday cooling to 38 Sunday lows 32-29 warming back to 33 Saturday night. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly clear this evening, partly cloudy with patchy fog and freezing fog late tonight,
• Mostly cloudy with patchy AM freezing fog, partly cloudy and a bit cooler Monday afternoon, becoming cloudy with a (40%) chance of evening rain and snow, rain likely (60%) late Monday night (under 0.10 in. of rain possible, snow level 2,500 ft. rising to 3,000 ft. late at night),
• Mostly cloudy with showers and a bit warmer Tuesday (AM snow level 3,500 ft.), showers likely (70%) Tuesday night (snow level 3,500 ft. late at night),
• Mostly cloudy with a slight (20%) chance of AM rain and snow showers, then mostly cloudy with areas of fog late Wednesday night.
• lows 29-39 cooling to 36 Wednesday night highs 42-49 cooling to 44 Wednesday.
• Mostly cloudy with areas of fog and a bit cooler Thursday, partly cloudy with areas of fog and patchy freezing fog late Thursday night,
• Mostly cloudy with a (30%) chance of rain and a bit warmer Friday and in the evening, a (30%) chance of rain and snow late at night,
• Just mostly cloudy and a bit cooler Saturday, mostly cloudy with a (30%) chance of evening rain, then mostly cloudy with a (30%) chance of rain and snow Saturday night and Sunday (New Year’s Day).
• highs 43-45 cooling to 43 Saturday lows 36-33 warming back to 36 Saturday night. (seasonal averages high 48 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear with patchy inland fog and freezing fog late tonight and Monday AM, just mostly cloudy and a bit warmer in the afternoon, becoming cloudy with a (40%) chance of evening rain, coastal rain late at night while inland rain likely (70%) late Monday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit warmer Tuesday, showers  likely (60%) Tuesday night,
• A slight (20%) chance of showers Wednesday AM, then mostly cloudy with areas of fog late Wednesday night.
• lows 33-43 cooling to 39 Wednesday night highs 49-52 cooling to 50 Wednesday.
• Mostly cloudy with areas of fog and a bit warmer Thursday and late Thursday night,
• Mostly cloudy with a (40%) chance of rain and a bit cooler Friday, a (30%) chance of rain at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday, then mostly cloudy with a (40%) chance of rain Saturday night and Sunday (New Year’s Day).
• highs 53-48 lows 42-37 warming to 48 Saturday. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly clear and cold tonight,
• A mix of clouds and sun and a bit warmer Monday, becoming mostly cloudy with a (%) chance of evening snow, snow late Monday night (4-8 in. of snow possible),
• Mostly cloudy with rain and snow showers, breezy (Wind: SW 15-25 mph) and a bit warmer Tuesday, snow showers at night,
• Mostly cloudy with a good (50%) chance of rain and snow showers and a bit cooler Wednesday, then partly cloudy with a slight (20%) chance of rain and snow showers Wednesday night.
• free air freezing level at the surface tonight and Monday AM, snow level 2,500 ft. Monday night, 4,000 ft. Tuesday, 4,000 ft. falling to 3,000 ft. Tuesday night, 3,000 ft. Wednesday, then 4,000 ft. Wednesday night.
• lows 14-24 highs 32-34.
• Partly cloudy and a bit warmer Thursday, partly cloudy at night,
• Partly cloudy with a good (50%) chance of rain and snow Friday,mostly cloudy with a (30%) chance of  snow Friday night,
• A mix of clouds and sun with a slight (20%) chance of rain and snow showers Saturday, mostly cloudy with a (40%) chance of snow Saturday night,
• Then mostly cloudy with a good (50%) chance of snow Sunday.
• free air freezing level 6,000 ft. Thursday, 6,500 ft. Thursday night, snow level 4,500 ft. Friday, then at the surface Friday night through Sunday (New Year’s Day).
• highs 37-30 lows 24-16 warming to 18 Saturday night.

 

 

________________

 

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

 

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is the“Action Stage?” Here is the correct answer. Action Stage is the stage which, when reached by a rising stream, represents the level where the NWS or a partner/user needs to take some type of mitigation action in preparation for possible signif­icant hydrologic activity. The appropriate action is usually defined in a weather forecast office (WFO) hydrologic services manual. Action stage can be the same as forecast issuance stage (see / forecast issuance stage/). I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) is temporarily being replaced by high pressure (Shaded “Arch” shape with blue arrows) which brought sunshine and freezing fog to us to make it at least look like a “White Christmas” despite the fact that we didn’t get any snow. Low pressure does return though. The days 1-3 graphic shows the frontal system moving Southeast away from us. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Tuesday and again Friday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me what are the chances of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 50 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER STORM WATCH IS IN EFFECT FOR MONDAY NIGHT FOR THE WESTERN COLUMBIA RIVER GORGE AND THE CENTRAL COLUMBIA RIVER GORGE.
• A FROST ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM MONDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny and a bit cooler this afternoon (Christmas Day), partly cloudy with areas of freezing fog late tonight,
• A mix of clouds and sun with patchy AM fog and a bit warmer Monday, increasing clouds with rain at night (0.25 in. of rain possible),
• Mostly cloudy with showers Tuesday and at night,
• highs near 37-47 lows 29-38.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers at night,
• A mix of clouds and sun and a bit cooler Thursday, partly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday and Saturday, mostly cloudy with a slight (20%) chance of showers.
• highs near 44 lows 34-30 warming back to 34 Friday night. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Sunny and a bit cooler this afternoon (Christmas Day), mostly clear this evening, partly cloudy with patchy freezing fog late tonight,
• Patchy AM freezing fog, mostly cloudy and a bit warmer Monday afternoon, cloudy with a (40%) chance of evening rain, rain and snow likely (60%) late Monday night (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft.),
• Mostly cloudy with AM rain, showers and a bit warmer Tuesday afternoon, rain likely (70%) Tuesday night.
• highs 42-48 lows 30-39.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, areas of fog and freezing fog late Thursday night and Friday AM, partly cloudy with a slight (20%) chance of rain Friday afternoon, a (30%) chance of rain at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday AM, a slight (20%) chance of rain in the afternoon.
• highs near 47 lows near 36. (seasonal averages high 48 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Sunny this afternoon (Christmas Day), mostly clear this evening, partly cloudy with patchy inland fog and freezing fog late tonight,
• Mostly cloudy with patchy inland freezing fog Monday AM, just mostly cloudy and a bit warmer in the afternoon, coastal evening rain likely (70%) and rain late Monday night while a good (50%) chance of inland evening rain and inland rain likely (70%) late Monday night (0.25 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit warmer Tuesday afternoon, then rain likely (60%) Tuesday night.
• highs 47-52 lows 33-44 cooling to 42 Tuesday night.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog at night,
• Mostly cloudy with areas of AM fog, partly cloudy Thursday afternoon, partly cloudy with areas of fog late Thursday night and Friday AM, partly cloudy with a slight (20%) chance of showers Friday through Saturday AM, then a slight (20%) chance of rain in the afternoon.
• highs 52-50 rising to 52 Saturday lows near 40. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly sunny and a bit warmer this afternoon, partly cloudy and cold tonight,
• Mostly sunny in the AM, more clouds and a bit warmer Monday afternoon, mostly cloudy with snow Monday night (Heavy Snow Expected),
• Mostly cloudy with snow showers and a bit warmer Tuesday (Heavy Snow Expected), snow showers decreasing late at night.
• free air freezing level at the surface today through Monday, snow level at the surface Monday night, 3,500 ft. Tuesday, then 3,000 ft. Tuesday night.
• highs 28-32 lows 15-24.
• Mostly cloudy with a (40%) chance of rain and snow showers and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of rain and snow showers Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, partly cloudy at night,
• Partly cloudy with a slight (20%) chance of showers Friday, a slight (20%) chance of rain and snow showers Friday night,
• Then a mix of clouds and sun with a slight (20%) chance of rain and snow showers Saturday.
• snow level 3,500 ft. Wednesday, 4,000 ft. Wednesday night, free air freezing level 5,500 ft. Thursday, 7,000 ft. Thursday night, snow level 5,500 ft. Friday, then 4,000 ft. Friday night and Saturday.
• highs 32-35 lows near 24.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question for the last time. What is the“Action Stage?” Here is the correct answer. Action Stage is the stage which, when reached by a rising stream, represents the level where the NWS or a partner/user needs to take some type of mitigation action in preparation for possible signif­icant hydrologic activity. The appropriate action is usually defined in a weather forecast office (WFO) hydrologic services manual. Action stage can be the same as forecast issuance stage (see / forecast issuance stage/). I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) returned the clouds and precipitation. The days 1-3 graphic shows the frontal system moving Southeast away from us. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Tuesday and again Friday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A FROST ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FROST ADVISORY IS IN EFFECT FROM 10 PM SUNDAY UNTIL 7 AM MONDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with a slight (20%) chance of evening rain and snow showers, areas of freezing fog and low clouds late tonight and Sunday AM, partly cloudy and a bit cooler Sunday afternoon (Christmas Day), partly cloudy with areas of freezing fog late at night,
• A mix of clouds and sun with patchy AM fog, increasing clouds to mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday, rain at night (0.25 in. of rain possible) and Tuesday AM, showers and a bit warmer in the afternoon, showers likely (70%) Tuesday night,
• lows 29-38 highs near 37-44.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers at night,
• A mix of clouds and sun and a bit cooler Thursday, partly cloudy at night,
• A mix of clouds and sun with a slight (20%) chance of showers Friday and Saturday, mostly cloudy with a slight (20%) chance of showers .
• highs near 44 lows 34-30 warming to 33 Friday night. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Partly cloudy with a slight (20%) chance of isolated evening rain and snow showers (snow level 2,000 ft.), partly cloudy with freezing fog late tonight and Sunday AM (Christmas Day), sunny and a bit cooler in the afternoon, mostly clear in the evening, patchy freezing fog late Sunday night,
• Patchy AM freezing fog, mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon, cloudy with a (40%) chance of evening rain and snow, rain and snow likely (60%) late Monday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit warmer Tuesday afternoon, showers likely (70%) Tuesday night.
• lows 28-38 highs 42-45.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, areas of fog and freezing fog late Thursday night and Friday AM, partly cloudy with a slight (20% chance of showers Friday afternoon, a (30%) chance of showers at night,
• Then partly cloudy with a slight (20%) chance of showers Saturday.
• highs 45-43 warming to 46 Friday lows 38-34. (seasonal averages high 48 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Partly cloudy with a (30%) chance of scattered coastal showers this evening and patchy fog late tonight while a (30%) chance of isolated evening rain and snow showers and patchy fog and freezing fog inland late tonight,
• Mostly cloudy with patchy AM coastal fog while patchy fog and freezing fog inland in the AM, sunny Sunday afternoon (Christmas Day) , mostly clear in the evening, partly cloudy with patchy inland fog and freezing fog late Sunday night,
• Mostly cloudy with patchy inland freezing fog Monday AM, a slight (20%) chance of rain and a bit warmer in the afternoon, evening rain likely (70%), rain late Monday night (0.25 in. of rain possible),
• Mostly cloudy with  rain, showers and a bit warmer Tuesday afternoon, then showers likely (60%) Tuesday night.
• lows 33-44 cooling to 42 Tuesday night highs 47-52.
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog at night,
• Mostly cloudy with areas of AM fog, partly cloudy Thursday afternoon, partly cloudy with areas of fog late Thursday night and Friday AM, partly cloudy with a slight (20%) chance of showers Friday, a slight chance of a shower at night,
• Then partly cloudy Saturday.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       highs 52-50 lows 42-38. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of evening snow showers, mostly cloudy late tonight,
• Partly cloudy cloudy Sunday AM (Christmas Day), mostly sunny and a bit warmer in the afternoon, partly cloudy Sunday night,
• A mix of clouds and sun and a bit warmer Monday, mostly cloudy with rain and snow Monday night,
• Mostly cloudy with AM rain and snow, then showers and a bit warmer Tuesday afternoon and at night.
• snow level at the surface tonight, free air freezing level at the surface Sunday and Sunday night, at the surface Monday, snow level at the surface Monday night, then 4,000 ft. Tuesday and Tuesday night.
• lows 14-24 highs 27-33.
• Mostly cloudy with a (40%) chance of snow showers and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, partly cloudy at night,
• Partly cloudy with a slight (20%) chance of showers Friday and Friday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Saturday.
• snow level 3,500 ft. Wednesday, 4,000 ft. Wednesday night, free air freezing level 5,500 ft. Thursday, 7,500 ft. Thursday night, snow level 6,000 ft. Friday, then 5,500 ft. Friday night and Saturday.
• highs 32-35 lows near 24.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question for the last time. What is the“Action Stage?” Here is the correct answer. Action Stage is the stage which, when reached by a rising stream, represents the level where the NWS or a partner/user needs to take some type of mitigation action in preparation for possible signif­icant hydrologic activity. The appropriate action is usually defined in a weather forecast office (WFO) hydrologic services manual. Action stage can be the same as forecast issuance stage (see / forecast issuance stage/). I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

An upper level trough of low pressure (Shaded “U” shape with blue arrows) returned the clouds and precipitation. The days 1-3 graphic shows the frontal system moving Southeast away from us. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation Tuesday and again Friday. So far, the snow will stay in the mountains. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A FROST ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A slight (20%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers this afternoon (under 0.10 in. of rain possible, snow level 1,500 ft.), partly cloudy with a slight (20%) chance of evening rain and snow showers, partly cloudy with patchy freezing fog late tonight and Sunday AM, mostly sunny and Sunday afternoon (Christmas Day), partly cloudy with patchy freezing fog late at night,
• Patchy AM freezing fog, a mix of clouds and sun and a bit cooler Monday, more clouds to mostly cloudy with rain likely (70%) Monday night.
• highs near 40 lows 28-37.
• Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, a good (50%) chance of rain Tuesday night.
• Mostly cloudy with a (40%) chance of showers Wednesday, a slight (20%) chance of rain at night,
• A mix of clouds and sun Thursday, partly cloudy at night,
• Then increasing clouds with a slight (20%) chance of rain Friday.
• highs near 44 lows 37-32. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers today (under 0.10 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. ), a slight (20%) chance of evening rain and snow showers, just partly cloudy late tonight,
• Patchy AM freezing fog, partly cloudy Sunday afternoon (Christmas Day), patchy freezing fog Sunday night,
• Patchy AM freezing fog, mostly cloudy and a bit warmer Monday afternoon, evening rain and snow likely (70%), then rain likely (60%) late Monday night.
• highs 42-45 lows 28-38.
• Mostly cloudy with rain and a bit warmer Tuesday, evening rain likely (70%), mostly cloudy with rain and snow likely (70%) late Tuesday night,
• Mostly cloudy with a (30%) chance of rain and snow showers Wednesday, a slight (20%) chance of showers with areas of fog late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, areas of fog and freezing fog late Thursday night and Friday (a bit warmer).
• highs 45-43 warming to 46 Friday lows 38-34. (seasonal averages high 47 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with AM coastal showers likely (70%) and a (40%) chance of coastal showers this afternoon while a (30%) chance of inland showers today (under 0.10 in. of rain possible, snow level 2,000 ft.), mostly cloudy with a slight (20%) chance of showers this evening (snow level 2,000 ft.), just partly cloudy late tonight,
• Mostly cloudy with patchy AM coastal fog while patchy fog and freezing fog inland in the AM, just partly cloudy and a bit warmer Sunday afternoon (Christmas Day) and in the evening, partly cloudy with patchy inland freezing fog late Sunday night,
• Mostly cloudy with patchy freezing fog Monday AM, just  mostly cloudy in the afternoon, then rain Monday night.
• highs near 48 lows 33-42.
• Mostly cloudy with rain and a bit warmer Tuesday, rain likely (60%) Tuesday night,
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog at night,
• Mostly cloudy with areas of AM fog, partly cloudy Thursday afternoon, mostly clear in the evening, partly cloudy with areas of fog late Thursday night and Friday AM, partly cloudy with a slight (20%) chance of rain and a bit warmer Friday.
• highs 50-53 lows 42-39. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Cloudy and a bit cooler with a good (50%) chance of snow showers this afternoon (1-2 in. of snow possible), partly cloudy with a slight (20%) chance of evening snow showers, snow flurries late tonight and Sunday AM, a mix of clouds and sun and a bit warmer Sunday afternoon (Christmas Day), just partly cloudy and cold Sunday night,
• A mix of clouds and sun and a bit warmer Monday, then becoming mostly cloudy with snow likely (70%) Monday night.
• snow level at the surface today through Saturday evening, free air freezing level at the surface Saturday night and Monday, then snow level at the surface Monday night.
• highs 26-30 lows 14-23.
• Mostly cloudy with rain and snow and a bit warmer Tuesday and at night,
• Mostly cloudy with a (40%) chance of snow showers and a bit cooler Wednesday, a slight (20%) chance of snow Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, partly cloudy at night,
• Partly cloudy with a slight (20%) chance of rain Friday.
• snow level 4,000 ft. Tuesday, 3,000 ft. Tuesday night, 2,500 ft. Wednesday and Wednesday night, free air freezing level 4,000 ft. Thursday, 7,000 ft. Thursday night, snow level 6,500 ft. Friday.
• highs 32-35 lows near 24.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question. What is the“Action Stage?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

Short-lived high pressure is being replaced by an upper level trough of low pressure (Shaded “U” shape with blue arrows) returning the clouds and precipitation. The days 1-3 graphic shows the frontal system moving through Oregon. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 33 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 19 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT FOR TONIGHT FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT THROUGH 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 7 AM SATURDAY ABOVE 1,500 FT, FOR THE CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with evening showers likely (70%), a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, snow level 1,500 ft.),
• A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers Saturday (under 0.10 in. of rain possible, snow level 1,500 ft.), partly cloudy with a slight (20%) chance of evening showers, partly cloudy with patchy freezing fog late Saturday night and Sunday AM, mostly sunny and Sunday afternoon (Christmas Day),  partly cloudy with patchy freezing fog late at night,
• Patchy AM freezing fog, a mix of clouds and sun and a bit cooler Monday, more clouds to mostly cloudy with rain likely (70%) Monday night.
• lows 32-28 warming to 37 Monday night highs near 40.
• Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, a good (50%) chance of rain Tuesday night.
• Mostly cloudy with a (40%) chance of showers Wednesday, a slight (20%) chance of rain at night,
• A mix of clouds and sun Thursday, partly cloudy at night,
• Then increasing clouds with a slight (20%) chance of rain Friday.
• highs near 44 lows 37-32. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with rain and snow showers this evening, rain and snow showers likely (70%) late tonight (1-2 in. of snow possible, snow level 1,500 ft.),
• Mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers Saturday (snow level 2,000 ft. falling to 1,500 ft. ), a slight (20%) chance of evening rain and snow showers, just partly cloudy late Saturday night,
• Patchy AM freezing fog, partly cloudy Sunday afternoon (Christmas Day), patchy freezing fog Sunday night,
• Patchy AM freezing fog, mostly cloudy and a bit warmer Monday afternoon, evening rain and snow likely (70%), then rain likely (60%) late Monday night.
• lows 35-28 warming to 38 Monday night highs near 42.
• Mostly cloudy with rain and a bit warmer Tuesday, evening rain likely (70%), mostly cloudy with rain and snow likely (70%) late Tuesday night,
• Mostly cloudy with a (30%) chance of rain and snow showers Wednesday, a slight (20%) chance of showers with areas of fog late Wednesday night,
• Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, areas of fog and freezing fog late Thursday night and Friday (a bit warmer).
• highs 45-43 warming to 46 Friday lows 38-34. (seasonal averages high 47 low 36)

 

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with coastal showers likely (70%) tonight while inland rain and snow showers this evening and inland rain and snow showers likely (70%) late at night, (snow level 1,500 ft.),
• Mostly cloudy with AM coastal showers likely (70%) and a (40%) chance of coastal showers Saturday afternoon while a (30%) chance of inland showers Saturday (snow level 2,000 ft.), mostly cloudy with a slight (20%) chance of showers in the evening (snow level 2,000 ft.), just partly cloudy late Saturday night,
• Mostly cloudy with patchy AM coastal fog while patchy fog and freezing fog inland in the AM, just partly cloudy and a bit warmer Sunday afternoon (Christmas Day) and in the evening, partly cloudy with patchy inland freezing fog late Sunday night,
• Mostly cloudy with patchy freezing fog Monday AM, just  mostly cloudy in the afternoon, then rain Monday night.
• lows 37-33 warming to 42 Monday night highs near 48.
• Mostly cloudy with rain and a bit warmer Tuesday, rain likely (60%) Tuesday night,
• Mostly cloudy with a (30%) chance of showers Wednesday, a slight (20%) chance of showers with areas of fog at night,
• Mostly cloudy with areas of AM fog, partly cloudy Thursday afternoon, mostly clear in the evening, partly cloudy with areas of fog late Thursday night and Friday AM, partly cloudy with a slight (20%) chance of rain and a bit warmer Friday.
• highs 48-50 lows 42-39. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy and colder with snow showers (4-8 in. of snow possible) tonight,
• Cloudy with AM snow showers likely (70%), a bit cooler with a good (50%) chance of snow showers Saturday afternoon (1-2 in. of snow possible), partly cloudy with a slight (20%) chance of evening snow showers, snow flurries late Saturday night and Sunday AM, mostly sunny and a bit warmer Sunday afternoon (Christmas Day), just partly cloudy Sunday night,
• A mix of clouds and sun and a bit warmer Monday, then becoming mostly cloudy with snow likely (70%) Monday night.
• snow level 2,500 ft. tonight, at the surface Saturday through Sunday, free air freezing level at the surface Sunday night and Monday, then snow level at the surface Monday night.
• lows 18-14 warming to 23 Monday night highs 26-30.
• Mostly cloudy with rain and snow and a bit warmer Tuesday and at night,
• Mostly cloudy with a (40%) chance of snow showers and a bit cooler Wednesday, a slight (20%) chance of rain and snow Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, partly cloudy at night,
• Increasing clouds with a slight (20%) chance of rain Friday.
• snow level 4,000 ft. Tuesday, 3,000 ft. Tuesday night, 2,500 ft. Wednesday and Wednesday night, free air freezing level 4,000 ft. Thursday, 7,000 ft. Friday night, then snow level 6,500 ft. Friday.
• highs 32-35 lows near 24.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question. What is the“Action Stage?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

Short-lived high pressure is being replaced by an upper level trough of low pressure (Shaded “U” shape with blue arrows) returning the clouds and precipitation. The days 1-3 graphic shows the frontal system moving through Oregon. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 45 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT THROUGH 6 PM THIS AFTERNOON FOR THE CENTRAL COLUMBIA GORGE, THE NORTHERN OREGON CASCADES, THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER STORM WARNING IS IN EFFECT THROUGH 4 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 10 PM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with showers and a bit cooler this afternoon (0.25 in. of rain possible), cloudy with evening showers likely (70%), a good (50%) chance of showers late tonight (0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Saturday (snow level 1,500 ft.), a slight (20%) chance of evening showers, partly cloudy with patchy freezing fog late Saturday night and Sunday AM, partly cloudy and a bit cooler Sunday afternoon (Christmas Day), then partly cloudy with patchy freezing fog late at night.
• highs 45-35 lows 34-28.
• Patchy AM freezing fog, mostly cloudy and a bit warmer with a slight (20%) chance of snow Monday afternoon, more clouds to mostly cloudy and a bit warmer with rain likely (70%) Monday night through Tuesday  night,
• A mix of clouds and sun with a (40%) chance of showers Wednesday, a slight (20%) chance of showers at night,
• Then a mix of clouds and sun with a slight (20%) chance of rain Thursday.
• highs 38-42 lows 37-33. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with rain and snow showers and a bit cooler this afternoon (0.25 in. of rain possible, 1-2 in. of snow possible, snow level 2,000 ft. in the afternoon), becoming cloudy with evening rain and snow showers likely (70%), a good (50%) of rain and snow showers late Friday night (1 in. of snow possible, snow level 1,500 ft. falling to 1,000 ft. late Friday night),
• Mostly cloudy and a bit Saturday afternoon cooler with a (40%) chance of rain and snow showers Saturday (snow level 800 ft. rising to 1,500 ft. ), a slight (20%) chance of evening snow showers,  just partly cloudy late Saturday night,
• Patchy AM freezing fog, partly cloudy and a bit cooler Sunday afternoon (Christmas Day), patchy freezing fog Sunday night.
• highs 43-40 lows 36-29.
• Patchy AM freezing fog, mostly cloudy and a bit warmer Monday afternoon, evening rain and snow likely (70%), rain and snow likely (60%) late at night,
• Mostly cloudy with rain likely (70%) and a bit warmer Tuesday, cloudy with a good (50%) chance of evening rain, mostly cloudy with a (40%) chance of rain and snow late Tuesday night,
• Mostly cloudy with a (30%) chance of rain and snow Wednesday AM, a slight (20%) chance of rain and snow showers in the afternoon, a slight (20%) chance of rain Wednesday night,
• Then partly cloudy and a bit cooler Thursday.
• highs 42-45 lows 37-34. (seasonal averages high 47 low 36)

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy and a bit cooler with rain this afternoon (0.50 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft.), cloudy with coastal showers likely (70%) this evening and showers likely (70%) with a slight (20%) chance of thunderstorms late at night while evening inland rain and snow showers likely (70%) and a good (50%) chance of inland rain and snow showers late tonight (snow level 2,000 ft. falling to 1,500 ft. late),
• Mostly cloudy and a bit cooler with a (40%) chance of coastal showers while a (40%) chance of inland rain and snow showers Saturday (snow level 900 ft. rising to 2,000 ft.), mostly cloudy in the evening, just partly cloudy late Saturday night,
• Mostly cloudy with patchy AM coastal fog while patchy fog and freezing fog inland in the AM, just partly cloudy and a bit warmer Sunday afternoon (Christmas Day) and in the evening, then mostly clear with freezing fog late Sunday night.
• highs near 47 lows 37-34.
• Mostly cloudy with patchy freezing fog Monday AM, mostly cloudy with a slight (20%) chance of rain in the afternoon, rain likely (70%) Monday night and Tuesday, cloudy with a (40%) chance of rain Tuesday night,
• Mostly cloudy with a (30%) chance of AM rain, a (30%) chance of showers Wednesday afternoon, a slight (20%) chance of rain at night,
• Then just partly cloudy and a bit warmer Thursday.
• highs 48-52 lows 42-38. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow showers and a bit cooler this afternoon (0.50 in. of rain possible, 2-6 in. of snow possible), snow showers (2-4 in. of snow possible) and colder tonight,
• Cloudy with AM snow showers likely (70%),  a bit cooler with a good (50%) chance of snow showers Saturday afternoon, partly cloudy with a slight (20%) chance of snow showers Saturday night and Sunday AM, mostly sunny and a bit warmer Sunday afternoon (Christmas Day), then just partly cloudy Sunday night.
• snow level 3,000 ft. today, at the surface tonight through Saturday night, then free air freezing level at the surface Sunday and Sunday night.
• highs 33-26 lows 20-14.
• A mix of clouds and sun and a bit warmer Monday, becoming mostly cloudy with snow likely (70%) Monday night,
• Rain and snow and a bit warmer Tuesday and at night,
• Mostly cloudy with a good (50%) chance of snow showers and a bit cooler Wednesday, a (30%) chance of snow showers at night,
• Then mostly cloudy and a bit warmer  with a slight (20%) chance of rain and snow Thursday.
• free air freezing level at the surface Monday, snow level at the surface Monday night, 4,000 ft. Tuesday, 2,500 ft. Tuesday night, at the surface Wednesday and Wednesday night, then 3,000 ft. Thursday.
• highs 30-35 lows near 23.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question. What is the“Action Stage?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

Short-lived high pressure is being replaced by an upper level trough of low pressure (Shaded “U” shape with blue arrows) returning the clouds and precipitation. The days 1-3 graphic shows the frontal system moving through Oregon today. The graphic for days 3-7 shows a series of frontal systems that will be keeping us in precipitation. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 45 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT FROM TONIGHT THROUGH FRIDAY AFTERNOON FOR THE CENTRAL COLUMBIA GORGE, THE NORTHERN OREGON CASCADES, THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM TODAY THROUGH 6 PM FRIDAY FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 10 PM TODAY THROUGH 4 PM FRIDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 10 PM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with rain tonight (0.50 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Friday afternoon (0.50 in. of rain possible), evening showers likely (70%), a good (50%) chance of showers late at night (0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Saturday (snow level 1,000 ft.), just partly cloudy late Saturday night,
• Partly cloudy in the AM, becoming mostly sunny and a bit cooler Sunday afternoon (Christmas Day), then just partly cloudy at night.
• lows 38-28 highs 42-37.
• A mix of clouds and sun and a bit warmer Monday, more clouds to mostly cloudy and a bit warmer with rain likely (70%) Monday night and Tuesday, cloudy with a good (50%) chance of  showers Tuesday  night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday, a slight (20%) chance of rain at night,
• Then a mix of clouds and sun Thursday.
• highs 38-42 lows 37-33. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with a good (50%) chance of evening rain, rain late tonight (0.50 in. of rain possible),
• Mostly cloudy with AM rain, rain and snow showers and a bit cooler Friday afternoon (0.25 in. of rain possible, snow level 2,500 ft. in the afternoon), becoming cloudy with evening rain and snow showers likely (70%), a good (50%) of rain and snow showers late Friday night (1 in. of snow possible, snow level 2,000 ft. falling to 1,000 ft. late Friday night),
• Mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Saturday, a slight (20%) chance of evening snow showers,  just partly cloudy late Saturday night,
• Patchy AM freezing fog, partly cloudy and a bit cooler Sunday afternoon (Christmas Day), patchy freezing fog Sunday night.
• lows 43-29 highs 43-40.
• Patchy AM freezing fog, mostly cloudy and a bit warmer Monday, evening rain and snow likely (70%), a slight (20%) chance of rain and snow late at night,
• Mostly cloudy with rain likely (70%) and a bit warmer Tuesday, cloudy with a good (50%) chance of evening rain, mostly cloudy with a (40%) chance of rain and snow late Tuesday night,
• Mostly cloudy with a (30%) chance of rain and snow Wednesday AM, a slight (20%) chance of rain and snow showers in the afternoon, a slight (20%) chance of rain Wednesday night,
• Then partly cloudy and a bit cooler Thursday.
• highs 42-45 lows 38-34. (seasonal averages high 47 low 36)

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with coastal rain tonight while evening inland rain likely (70%) and inland rain late tonight (0.75 in. of rain possible),
• Rain Friday AM, showers and a bit cooler in the afternoon (0.50 in. of rain possible, snow level 2,000 ft.), cloudy with coastal showers likely (70%) Friday night while evening inland rain and snow showers likely (70%) and a good (50%) chance of inland rain and snow showers late Friday night,
• Mostly cloudy and a bit cooler with a (40%) chance of coastal showers while a (40%) chance of inland rain and snow showers Saturday (snow level 900 ft. rising to 2,000 ft.), mostly cloudy in the evening, just partly cloudy late Saturday night,
• Mostly cloudy with patchy AM fog and freezing fog, just partly cloudy and a bit warmer Sunday (Christmas Day) and in the evening, then mostly clear with freezing fog late Sunday night.
• lows 42-34 highs near 47.
• Mostly cloudy with patchy freezing fog Monday AM, mostly cloudy with a slight (20%) chance of rain in the afternoon, rain likely (70%) Monday night and Tuesday, cloudy with a (40%) chance of rain Tuesday night,
• Mostly cloudy with a (30%) chance of AM rain, a (30%) chance of showers Wednesday afternoon, a slight (20%) chance of rain at night,
• Then just partly cloudy and a bit warmer Thursday.
• highs 48-52 lows 42-38. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow chances rising to near 100% tonight (0.25 in. of rain possible, 2-5 in. of snow possible),
• AM rain and snow Friday, rain and snow showers and a bit cooler in the afternoon (0.50 in. of rain possible, 4-8 in. of snow possible), snow showers (1-4 in. of snow possible) and colder Friday night,
• Cloudy and a bit cooler with a good (50%) chance of snow showers Saturday, mostly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy Saturday night,
• Partly cloudy in the AM, mostly sunny and a bit warmer Sunday afternoon (Christmas Day), then just partly cloudy Sunday night.
• snow level 3,000 ft. tonight and Friday, at the surface Friday night through Saturday night, then free air freezing level at the surface Sunday and Sunday night.
• lows 28-14 highs 33-26.
• A mix of clouds and sun and a bit warmer Monday, becoming mostly cloudy with a good (50%) chance of snow Monday night,
• Rain and snow and a bit warmer Tuesday, snow showers likely (70%) Tuesday night,
• Then mostly cloudy with a (30%) chance of snow showers and a bit cooler Wednesday, a slight (20%) chance of showers at night,
• Then a mix of clouds and sun and a bit warmer Thursday.
• free air freezing level at the surface Sunday Monday, snow level at the surface Monday night, 4,000 ft. Tuesday, 3,000 ft. Tuesday night, at the surface Wednesday and Wednesday night, then free air freezing level at the surface Thursday.
• highs 30-35 lows near 23.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________

Here is my weekly weather quiz question. What is the“Action Stage?” Please remember to post your answer at the bottom of this page. An email will not suffice. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

Short-lived high pressure is being replaced by an upper level trough of low pressure (Shaded “U” shape with blue arrows) returning the clouds and precipitation. The days 1-3 graphic shows the next frontal system headed our way today (day 2). The graphic for days 3-7 shows a frontal system approaching the Pacific Northwest next Tuesday. For mountain snow conditions at the local ski areas check out their websites or give them a call.

Note: Many people always ask me if there is a chance of the Eugene-Springfield area having a “White Christmas.” I checked with  the National Weather Service Forecast Office in Portland to confirm a statistic I remember from back in the days when we had a local weather service office at the Eugene Airport. Clinton Rockey, their climatology expert, says that we have no more than a 2% chance of having a White Christmas. That is calculated from the historical climate data going back to when the local office first opened. Don’t worry Santa doesn’t need snow to deliver the presents.

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 23 in the Goofd category measuring Particulate Matter.

Oakridge: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON FOR THE CENTRAL COLUMBIA GORGE AND THE UPPER HOOD RIVER VALLEY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM TODAY THROUGH 6 PM FRIDAY FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 10 PM TODAY THROUGH 4 PM FRIDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 10 PM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A mix of clouds and sun with a slight (20%) chance of rain and warmer this afternoon with increasing clouds (under 0.10 in. of rain possible), mostly cloudy with rain tonight (050 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Friday afternoon (0.25 in. of rain possible), a good (50%) chance of showers at night,
• A mix of clouds and sun and a bit cooler with a (40%) chance of rain and snow showers Saturday (snow level 1,000 ft.), partly cloudy then just partly cloudy late Saturday night.
• highs 45-40 lows 38-30.
• A mix of clouds and sun and a bit cooler Sunday (Christmas Day), just partly cloudy at night,
• A mix of clouds and sun and a bit warmer Monday, mostly cloudy with good (50%) chance of rain Monday night,
• Mostly cloudy with rain likely (70%) Tuesday, showers likely (70%) Tuesday  night,
• Then mostly cloudy with a (30%) chance of showers Wednesday.
• highs 37-42 lows 29-36. (seasonal averages high 45 low 33)

 

_____________________

Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of rain and a bit warmer this afternoon (under 0.10 in. of rain possible), a good (50%) chance of evening rain, then rain late tonight (0.50 in. of rain possible, snow level 3,000 ft. late at night),
• Mostly cloudy with AM rain, rain and snow showers and a bit cooler Friday afternoon (0.25 in. of rain possible, snow level 3,500 ft. falling to 2,500 ft. in the afternoon), becoming cloudy with evening rain and snow showers likely (70%), rain and snow showers likely (70%) late Friday night (snow level 1,500 ft. late Friday night),
• Mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers Saturday, a slight (20%) chance of evening snow showers, then just partly cloudy late Saturday night.
• highs 48-42 lows 40-32.
• Patchy AM freezing fog, mostly cloudy and a bit cooler with patchy lingering freezing fog Sunday afternoon (Christmas Day) through Monday (a bit warmer), a slight (20%) chance of rain and snow at night,
• AM rain and snow likely (70%), rain likely (70%) and a bit warmer Tuesday afternoon, a good (50%) chance of evening rain, then mostly cloudy with a (40%) chance of rain and snow Tuesday night and Wednesday.
• highs 39-45 lows 27-37. (seasonal averages high 47 low 36)

 

________________

 

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy and a bit cooler with a (30%) chance of rain this afternoon (under 0.10 in. of rain possible), evening coastal rain while evening inland rain likely (70%), rain late tonight (0.75 in. of rain possible) and Friday AM, showers and a bit cooler in the afternoon (0.50 in. of rain possible), cloudy with coastal showers likely (70%) Friday night while evening inland rain and snow showers likely (70%) and a good (50%) chance of inland rain and snow showers late Friday night,
• Mostly cloudy with a (30%) chance of coastal showers while a (30%) chance of inland rain and snow showers Saturday, mostly cloudy in the evening, then just partly cloudy late Saturday night.
• highs 52-47 lows 39-42 cooling to 35 Saturday night.
• Mostly cloudy with patchy AM fog and freezing fog, just mostly cloudy Sunday (Christmas Day), mostly cloudy with freezing fog Sunday night and Monday, mostly cloudy with a (40%) chance of rain Monday night,
• Rain likely (70%) and a bit warmer Tuesday, then mostly cloudy with a (40%) chance of rain Tuesday night and Wednesday.
• highs 47-50 lows 35-40. (seasonal averages high 51 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler this afternoon, rain and snow tonight (0.50 in. of rain possible, 3-8 in. of snow possible),
• AM rain and snow Friday, becoming mostly cloudy with rain and snow showers and a bit cooler in the afternoon (0.50 in. of rain possible, 3-6 in. of snow possible), snow showers and colder Friday night,
• Mostly cloudy with AM snow showers likely (70%), a bit cooler with a (40%) chance of snow showers Saturday afternoon, then partly cloudy with a slight (20%) chance of occasional snow showers at night.
• free air freezing level 5,000 ft. today, snow level 3,500 ft. tonight, 3,500 ft. falling to 2,500 ft. Friday, then at the surface Friday night through Saturday night.
• highs 35-27 lows 28-17.
• A mix of clouds and sun with a slight (20%) chance of snow flurries and a bit warmer Sunday (Christmas Day), just partly cloudy Sunday night,
• A mix of clouds and sun Monday and a bit warmer, becoming mostly cloudy with a good (50%) chance of snow Monday night,
• Rain and snow and a bit warmer Tuesday, snow showers likely (70%) Tuesday night,
• Then mostly cloudy with a good (50%) chance of rain and snow and a bit cooler Wednesday.
• snow level at the surface Sunday, free air freezing level at the surface Sunday night through Monday night, snow level 3,500 ft. Tuesday and Tuesday night, then 2,500 ft Wednesday.
• highs 28-30 cooling to 24 Wednesday lows 18-23.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

__________