Here is my new weekly weather quiz question. What is “Deep Percolation Loss?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

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An upper level low (Shaded “U” shape with blue arrows) will be keeping us in clouds and showers until Wednesday. A surface frontal system moved through the Pacific Northwest increasing the chance of precipitation. Upper air high pressure (Shaded “Arch” shape with blue arrows – on first graphic) takes over mid week clearing the skies for some drying time. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing also open at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT  7 AM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE,  THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM TODAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Mostly cloudy and a bit warmer with showers likely (60%) this afternoon, (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers this evening, patchy fog late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with patchy fog and and a slight (20%) chance of rain and snow (snow level 1,500 ft.), a bit cooler with a good (50%) chance of rain Tuesday afternoon, cloudy with evening rain likely (70%), a good (50%) chance of rain late Tuesday night (0.15 in. of rain possible),
• Cloudy with a slight (20%) chance of showers Wednesday AM, a mix of clouds and sun with a good (50%) chance of showers and a bit warmer Wednesday, mostly cloudy with areas of fog and freezing fog late Wednesday night,
• highs 44-40 warming back to 44 Wednesday lows 32-34 cooling to near 32 Wednesday night.
• Patchy AM fog and freezing fog, mostly cloudy with patchy lingering fog Thursday afternoon, mostly cloudy with areas of fog and freezing fog late Thursday night (New Year’s Eve) and Friday AM, just mostly cloudy with areas of lingering fog in the afternoon (New Year’s Day) and again Saturday  and Sunday.
• highs 40-38 lows near 27. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with scattered rain and snow showers today (under 0.10 in. of rain possible, snow level 2,000 ft.), a slight (20%) chance of rain and snow tonight (snow level 2,500 ft. in the evening),
• Patchy AM freezing fog, mostly cloudy with a slight (20%) chance of rain Tuesday afternoon, rain and snow likely (70%) late Tuesday night (0.20 in. of rain possible, snow level 2,500 ft.),
• Mostly cloudy with a bit warmer with a (30%) chance of showers Wednesday afternoon in the afternoon (snow level 3,000 ft. falling to 2,500 ft.), partly cloudy with patchy fog and freezing fog late at night.
• highs 43-46 lows 32-37 cooling to 33 Wednesday night.
• Partly cloudy with patchy AM fog and freezing fog Thursday, sunny and a bit cooler in the afternoon, mostly clear with patchy freezing fog at night (New Year’s Eve),
• Mostly clear with patchy AM fog and freezing fog, mostly sunny and a bit cooler Friday afternoon (New Year’s Day), mostly clear with patchy fog and freezing fog at night and Saturday AM, mostly sunny in the afternoon and Sunday, mostly clear with areas of fog and freezing fog Saturday night.
• highs near 42 lows 29-32. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with a (40%) chance of scattered showers today (under 0.10 in. of rain possible), a slight (20%) chance of showers tonight,
• Mostly cloudy with a slight (20%) chance of rain Tuesday (0.10 in. of rain possible, AM snow level 2,000 ft.), rain likely (70%) Tuesday night (0.35 in. of rain possible),
• A (30%) chance of rain Wednesday, partly cloudy in the evening, then mostly cloudy with patchy fog late Wednesday night.
• highs 47-52 lows 36-40 cooling to 39 Wednesday night.
• Mostly cloudy with with patchy fog Thursday AM, mostly sunny in the afternoon, evening, partly cloudy with areas of fog Thursday night (New Year’s Eve) and Friday AM, partly cloudy Friday afternoon (New Year’s Day) and evening, areas of fog and freezing fog Friday night,
• Partly cloudy with areas of fog and freezing fog Saturday AM, then partly cloudy with areas of fog Saturday night and Sunday.
• highs near 52 lows 36-34. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Cloudy with snow showers (1 in. of snow possible) likely (70%), a (40%) chance of evening snow showers,  mostly cloudy and cold with a slight (20%) chance of snow showers tonight,
• Mostly cloudy with a slight (20%) chance of AM snow, a (30%) chance of snow Tuesday afternoon, cold with snow likely (70%) Tuesday night,
• A slight (20%) chance of snow showers and a bit warmer Wednesday, then just partly cloudy Wednesday night.
• snow level 2,500 ft. today, at the surface tonight through Wednesday, then free air freezing level at the surface Wednesday night.
• highs near 30 lows 14-20.
• Mostly sunny Thursday, mostly clear at night (New Year’s Eve),
• Partly cloudy Friday AM (New Year’s Eve), mostly sunny in the afternoon, partly cloudy Friday night and Saturday AM, mostly sunny in the afternoon, partly cloudy Saturday night,
• Partly cloudy Sunday AM, then mostly sunny in the afternoon.
• free air freezing level 5,000 ft. Thursday, 5,500 ft. Thursday night, 6,500 ft. Friday (New Year’s Day) through Saturday, 7,500 ft. Saturday night, then 8,000 ft. Sunday.
• highs near 30 lows 10-15.

________________

**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 “Active Conservation Storage?” Here is the correct answer. Active Conservation Storage: In hydrologic terms, the portion of water stored in a reservoir that can be released for all useful purposes such as municipal water supply, power, irrigation, recreation, fish, wildlife, etc. Conservation storage is the volume of water stored between the inactive pool elevation and flood control stage. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level low (Shaded “U” shape with blue arrows) will be keeping us in clouds and showers until Wednesday. A surface frontal system is moving through the Pacific Northwest increasing the chance of precipitation. Upper air high pressure (Shaded “Arch” shape with blue arrows – on first graphic) takes over mid week clearing the skies for some drying time. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing also opened at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE WESTERN COLUMBIA RIVER GORGE,  THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Cloudy with evening showers likely (70%), a (40%) chance of showers late tonight (0.10 in. of rain possible),
• Cloudy and a bit warmer with a (40%) chance of showers Monday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers in the evening, patchy fog late Monday night (under 0.10 in. of rain possible),
• Mostly cloudy with patchy AM fog, a bit cooler with a slight (20%) chance of rain Tuesday afternoon (under 0.10 in. of rain possible, snow level 1,000 ft.), cloudy with a good (50%) chance of rain Tuesday night (0.15 in. of rain possible),
• Cloudy with a (40%) chance of showers and a bit warmer Wednesday, then just mostly cloudy Wednesday night.
• lows 34-30 warming back to 34 Tuesday night cooling to near 32 Wednesday night highs 44-40 warming back to 44 Wednesday.
• Patchy AM fog Thursday, a mix of clouds and sun and just a bit cooler in the afternoon, partly cloudy with patchy fog late Thursday night (New Year’s Eve) and Friday (New Year’s Day) and Saturday, mostly cloudy with areas of fog Thursday night, partly cloudy with areas of fog Friday night, then mostly cloudy with patchy fog Saturday night and Sunday.
• highs 40-38 lows near 27. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy rain and snow showers tonight (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft. rising to 2,500 ft. late tonight),
• Mostly cloudy with a (40%) chance of rain and snow showers Monday (under 0.10 in. of rain possible, snow level 2,000 ft. rising to 2,500 ft. late in the afternoon), a slight (20%) chance of rain and snow at night (snow level 2,500 ft. in the evening),
• Patchy AM freezing fog, mostly cloudy with a slight (20%) chance of rain Tuesday afternoon, a slight (20%) chance of rain in the evening, rain and snow likely (70%) late Tuesday night (0.20 in. of rain possible, snow level 2,500 ft.),
• Mostly cloudy  with AM rain and snow likely (70%), a bit warmer with a (30%) chance of showers Wednesday afternoon, a slight (20%) chance of evening showers, then partly cloudy with patchy fog and freezing fog late at night.
• lows 35-32 warming to 37 Tuesday night cooling to 33 Wednesday night highs 43-46.
• Partly cloudy with patchy AM fog and freezing fog Thursday, sunny and a bit cooler in the afternoon,  mostly clear with patchy freezing fog at night (New Year’s Eve),
• Mostly clear with patchy AM fog and freezing fog, mostly sunny and a bit cooler Friday afternoon (New Year’s Day), mostly clear with patchy fog and freezing fog at night and Saturday AM, mostly sunny in the afternoon and Sunday, mostly clear with areas of fog and freezing fog Saturday night.
• highs near 42 lows 29-32. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms this evening with showers likely (70%) and a slight (20%) chance of thunderstorms late tonight while inland showers this evening and showers likely (70%) late tonight (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers Monday (under 0.10 in. of rain possible), a slight (20%) chance of evening showers, a slight (20%) chance of rain late at night,
• Mostly cloudy with a slight (20%) chance of rain Tuesday (0.10 in. of rain possible), a (30%) chance of evening, rain likely (70%) Tuesday night (0.35 in. of rain possible) and Wednesday AM, a (40%) chance of showers and a bit warmer in the afternoon, a slight (20%) chance of evening showers, then mostly cloudy with patchy fog late Wednesday night.
• lows 39-36 warming to 40 Tuesday night cooling to 39 Wednesday night highs 47-52.
• Mostly cloudy with with patchy fog Thursday AM, mostly sunny in the afternoon, evening, partly cloudy with areas of fog Thursday night (New Year’s Eve) and Friday AM, partly cloudy Friday afternoon (New Year’s Day) and evening, areas of fog and freezing fog Friday night,
• Partly cloudy with areas of fog and freezing fog Saturday AM, then partly cloudy with areas of fog Saturday night and Sunday afternoon.
• highs near 52 lows 36-34. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly Cloudy with rain and snow likely this evening, snow showers likely (70%) tonight (0.25 in. of rain possible, 1-3 in. of snow possible),
• Cloudy with a good (50%) chance of AM snow showers, a slight (20%) chance of snow showers Monday afternoon, mostly cloudy and cold with a slight (20%) chance of snow showers Monday night,
• Mostly cloudy Tuesday afternoon, mostly cloudy with a good (50%) chance of snow Tuesday night,
• Cloudy with a good (50%) chance of snow showers and a bit warmer Wednesday, then mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night.
• snow level 3,000 ft. this evening, 2,500 ft. Monday, at the surface Tuesday, free air freezing level at the surface Tuesday night, snow level at the surface Wednesday, then 3,000 ft. Wednesday night.
• lows 22-14 warming to 20 Wednesday night highs 29-32.
• Then partly cloudy Thursday through Sunday.
• free air freezing level 5,000 ft. Thursday, 5,500 ft. Thursday night, then 6,500 ft. Friday (New Year’s Day) through Saturday, 7,500 ft. Saturday night, then 8,000 ft. Sunday.
• highs near 30 lows 10-15.

________________

**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 “Active Conservation Storage?” Here is the correct answer. Active Conservation Storage: In hydrologic terms, the portion of water stored in a reservoir that can be released for all useful purposes such as municipal water supply, power, irrigation, recreation, fish, wildlife, etc. Conservation storage is the volume of water stored between the inactive pool elevation and flood control stage. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level high pressure ridge dried us out for about 36 hours, but that also means colder temperatures with possible freezing fog. The next frontal system approaches the West Coast today. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 42 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 34 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 PM THIS EVENING ABOVE 1,000 FT. FOR THE GREATER PORTLAND METRO AREA.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM UNTIL 10 PM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE AND THE CENTRAL COLUMBIA RIVER GORGE.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 PM THIS EVENING FOR THE NORTHERN CASCADES FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Areas of AM fog, mostly cloudy and a bit warmer with rain at times today (0.25 in. of rain possible), cloudy with evening showers likely (70%), a (40%) chance of showers late tonight (0.10 in. of rain possible),
• Cloudy and a bit warmer with a (40%) chance of showers Monday AM, a slight (20%) chance of showers in the afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers at night and patchy fog late (under 0.10 in. of rain possible),
• Mostly cloudy with patchy AM fog, a slight (20%) chance of rain Tuesday, then cloudy with a (40%) chance of rain Tuesday night.
• highs 42-44 cooling back to 42 Tuesday lows 35-32 warming back to 35 Tuesday night.
• Cloudy with a good (50%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night,
• Patchy AM fog Thursday, a mix of clouds and sun and just a bit cooler in the afternoon, partly cloudy with patchy fog late at night (New Year’s Eve),
• Patchy AM fog and late night fog, then a mix of clouds and sun and a bit cooler in the afternoon Friday (New Year’s Day) and Saturday.
• highs 43-39 lows 33-26. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with patchy AM fog with rain and snow today (0.15 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft.), rain and snow showers likely (70%) tonight (0.10 in. of rain possible, 1 in. of snow possible, snow level 2,500 ft.),
• Mostly cloudy with a (40%) chance of rain and snow showers Monday (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft. in the afternoon), mostly cloudy with a slight (20%) chance of evening rain and snow showers (snow level 2,000 ft.), just mostly cloudy at night,
• Patchy AM freezing fog with a slight (20%) chance of rain and snow, mostly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon, then a (30%) chance of rain Tuesday night.
• highs near 42 lows 36-32 warming to 34 Tuesday night.
• Mostly cloudy  with a (40%) chance of AM rain and snow showers, a bit warmer with a slight (20%) chance of showers Wednesday afternoon, mostly cloudy in the evening, partly cloudy late at night,
• Patchy AM and late night fog and partly cloudy in the afternoon and at night   and a bit cooler Thursday (New Year’s Eve) through Friday (New Year’s Day),
• Then just partly cloudy Saturday.
• highs 43-38 lows 36-32. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with rain today (0.30 in. of rain possible), showers likely (70%) tonight (0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers Monday (under 0.10 in. of rain possible), a slight (20%) chance of inland showers in the evening while a slight (20%) chance of showers at the shore, then just mostly cloudy at night.
• highs near 48 lows 42-38 warming to 40 Tuesday night.
• Mostly cloudy with a slight (20%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
• A (40%) chance of showers and a bit warmer Wednesday, a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer Thursday, partly cloudy in the afternoon and evening, mostly cloudy with areas of fog Thursday night (New Year’s Eve),
• Areas of AM and late night fog otherwise partly cloudy Friday (New Year’s Day) and Friday night,
• Mostly cloudy Saturday AM, then mostly sunny in the afternoon.
• highs 50-55 lows 40-35. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Cloudy with a (40%) chance of snow this AM, snow this afternoon (2-4 in. of snow possible), snow showers tonight (1-3 in. of snow possible),
• Cloudy with a good (50%) chance of snow showers and a bit warmer Monday, then mostly cloudy with a slight (20%) chance of snow showers Monday night,
• Mostly cloudy with a slight (20%) chance of snow Tuesday afternoon, cloudy with a good (50%) chance of snow Tuesday night.
• snow level at the surface today through through Tuesday night.
• highs 28-30 lows 23-14.
• Cloudy with a good (50%) chance of snow showers and a bit warmer Wednesday, mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night,
• Then partly cloudy and just a little bit warmer Thursday through Saturday.
• snow level at the surface Wednesday, 3,000 ft. Wednesday night, free air freezing level 5,500 ft. Thursday, 6,500 ft. Thursday night, then 8,000 ft. Friday (New Year’s Day) through Saturday.
• highs 29-37 lows 20-23.

________________

**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 for the last time. What is “Active Conservation Storage?” Here is the correct answer. Active Conservation Storage: In hydrologic terms, the portion of water stored in a reservoir that can be released for all useful purposes such as municipal water supply, power, irrigation, recreation, fish, wildlife, etc. Conservation storage is the volume of water stored between the inactive pool elevation and flood control stage. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level high pressure ridge dried us out for about 36 hours, but that also means colder temperatures with possible freezing fog. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 51 in the Moderate category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 34 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 AM SUNDAY UNTIL 4 AM MONDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Cloudy with patchy fog tonight,
• Areas of AM fog, mostly cloudy and a bit warmer with rain at times Sunday (0.25 in. of rain possible), cloudy with evening showers likely (70%), a (40%) chance of showers late Sunday night (0.10 in. of rain possible),
• Cloudy and a bit warmer with a (40%) chance of showers Monday AM, a slight (20%) chance of showers in the afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers at night and patchy fog late (under 0.10 in. of rain possible),
• Mostly cloudy with patchy AM fog, a slight (20%) chance of rain Tuesday, then cloudy with a (40%) chance of rain Tuesday night.
• lows 32-35 cooling back to near 32 Monday night warming back to 35 Tuesday night highs 42-44 cooling back to 42 Tuesday.
• Cloudy with a good (50%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night,
• Patchy AM fog Thursday, a mix of clouds and sun and just a bit cooler in the afternoon, partly cloudy with patchy fog late at night (New Year’s Eve),
• Patchy AM fog and late night fog, then a mix of clouds and sun and a bit cooler in the afternoon Friday (New Year’s Day) and Saturday.
• highs 43-39 lows 33-26. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with areas of fog and freezing fog late tonight, rain and snow likely (70%) late tonight (snow level 3,000 ft.),
• Mostly cloudy with patchy AM fog with rain and snow Sunday (0.15 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft.), rain and snow showers likely (70%) Sunday night (0.10 in. of rain possible, 1 in. of snow possible, snow level 2,500 ft.),
• Mostly cloudy with a (40%) chance of rain and snow showers Monday (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft. in the afternoon), mostly cloudy with a slight (20%) chance of evening rain and snow showers (snow level 2,000 ft.), just mostly cloudy at night,
• Patchy AM freezing fog with a slight (20%) chance of rain and snow, mostly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon, then a (30%) chance of rain Tuesday night.
• lows 32-36 cooling back to 32 Monday night warming to 34 Tuesday night highs near 42.
• Mostly cloudy  with a (40%) chance of AM rain and snow showers, a bit warmer with a slight (20%) chance of showers Wednesday afternoon, mostly cloudy in the evening, partly cloudy late at night,
• Patchy AM and late night fog and partly cloudy in the afternoon and at night   and a bit cooler Thursday (New Year’s Eve) through Friday (New Year’s Day),
• Then just partly cloudy Saturday.
• highs 43-38 lows 36-32. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with rain very late tonight,
• Mostly cloudy with rain Sunday (0.30 in. of rain possible), showers likely (70%) Sunday night (0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers Monday (under 0.10 in. of rain possible), a slight (20%) chance of inland showers in the evening while a slight (20%) chance of showers at the shore, then just mostly cloudy at night.
• lows 38-42 cooling back to 38 Monday night warming to 40 Tuesday night highs near 48.
• Mostly cloudy with a slight (20%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
• A (40%) chance of showers and a bit warmer Wednesday, a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer Thursday, partly cloudy in the afternoon and evening, mostly cloudy with areas of fog Thursday night (New Year’s Eve),
• Areas of AM and late night fog otherwise partly cloudy Friday (New Year’s Day) and Friday night,
• Mostly cloudy Saturday AM, then mostly sunny in the afternoon.
• highs 50-55 lows 40-35. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Partly cloudy this evening, mostly cloudy tonight,
• Cloudy with a (40%) chance of snow Sunday AM, snow in the afternoon (3 in. of snow possible), snow showers Sunday night (2 in. of snow possible),
• Cloudy with a good (50%) chance of snow showers and a bit warmer Monday, then mostly cloudy with a slight (20%) chance of snow showers Monday night,
• Mostly cloudy with a slight (20%) chance of snow Tuesday afternoon, cloudy with a good (50%) chance of snow Tuesday night.
• free air freezing level at the surface tonight, snow level at the surface Sunday through through Tuesday night.
• lows 19-23 cooling to 14 Tuesday night highs 28-30.
• Cloudy with a good (50%) chance of snow showers and a bit warmer Wednesday, mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night,
• Then partly cloudy and just a little bit warmer Thursday through Saturday.
• snow level at the surface Wednesday, 3,000 ft. Wednesday night, free air freezing level 5,500 ft. Thursday, 6,500 ft. Thursday night, then 8,000 ft. Friday (New Year’s Day) through Saturday.
• highs 29-37 lows 20-23.

________________

**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 for the last time. What is “Active Conservation Storage?” Here is the correct answer. Active Conservation Storage: In hydrologic terms, the portion of water stored in a reservoir that can be released for all useful purposes such as municipal water supply, power, irrigation, recreation, fish, wildlife, etc. Conservation storage is the volume of water stored between the inactive pool elevation and flood control stage. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level high pressure ridge will dry us out for 24 to 36 hours, but that also means colder temperatures with possible freezing fog. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in theGood 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).

________________

Advisories:

• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Cloudy with areas of fog and freezing fog this AM, mostly sunny this afternoon, partly cloudy this evening, mostly cloudy with patchy fog and possible isolated freezing fog late tonight,
• Cloudy with areas of AM fog and a good (50%) chance of rain, rain and bit warmer Sunday afternoon, showers likely (70%) Sunday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Monday AM, a slight (20%) chance of showers in the afternoon, then partly cloudy with a slight (20%) chance of showers at night.
• highs 36-43 lows 32-35 cooling back to near 32 Monday night.
• Mostly cloudy with a (30%) chance of rain Tuesday and Wednesday, mostly cloudy with a (30%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, mostly cloudy Wednesday night,
• Then partly cloudy Thursday (New Year’s Eve) through Friday (New Year’s Day).
• highs 43-45 cooling back to near 43 Friday lows 35-30. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Partly cloudy with areas of fog and freezing fog this AM, just partly cloudy this afternoon and evening, mostly cloudy with areas of fog and freezing fog late tonight,
• Mostly cloudy with areas of AM freezing fog with rain and snow likely (70%),  a bit warmer with rain Sunday afternoon (snow level 2,000 ft. rising to 3,000 ft.), evening rain likely (70%), showers late Sunday night (snow level 2,500 ft.),
• Cloudy with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy at night.
• highs 40-44 lows 32-36 cooling to 33 Monday night.
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain and snow Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, mostly cloudy at night,
• Then just partly cloudy and a bit cooler Thursday (New Year’s Eve) through Friday (New Year’s Day).
• highs 42-44 cooling to 38 Friday lows 36-34. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with areas of AM coastal fog and freezing fog while areas of freezing fog inland, just mostly cloudy this afternoon, partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy with rain Sunday, evening rain likely (70%), showers late Sunday night,
• Mostly cloudy with a good (50%) chance of showers Monday, a slight (20%) chance of showers in the evening, then just mostly cloudy at night.
• highs 48-50 lows 38-42 cooling back to 38 Monday night.
• Mostly cloudy with a (30%) chance of rain Tuesday and Tuesday night,
• Mostly cloudy with a (30%) chance of showers Wednesday, just mostly cloudy at night,
• Partly cloudy Thursday, partly cloudy with patchy fog Thursday night (New Year’s Eve),
• Then partly cloudy Friday (New Year’s Day).
• highs 48-55 lows 40-37. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly sunny and a bit warmer today, partly cloudy tonight,
• Mostly cloudy with a slight (20%) chance of snow Sunday AM, snow likely (70%) in the afternoon, showers Sunday night,
• Cloudy with AM snow showers likely (70%), a (40%) chance of snow showers and a bit warmer Monday afternoon, then mostly cloudy with a slight (20%) chance of snow showers Monday night.
• free air freezing level at the surface today, 4,000 ft. falling to the surface tonight, snow level at the surface Sunday, 3,000 ft. Sunday night, 2,500 ft. Monday, then at the surface Monday night.
• highs 28-32 lows 20-22 cooling to 18 Monday night.
• Mostly cloudy with a slight (20%) chance of snow and a bit cooler Tuesday, a (40%) chance of rain or snow Tuesday night,
• Mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday, then just partly cloudy Wednesday night through Friday (New Year’s Day).
• snow level at the surface Tuesday, 3,000 ft. Tuesday night, 3,500 ft. Wednesday, free air freezing level 6,000 ft. Wednesday night, 7,500 ft. Thursday, then 9,000 ft. Thursday night and Friday.
• highs 29-37 lows 20-23.

________________

**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 new weekly weather quiz question. What is “Active Conservation Storage?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level high pressure ridge will dry us out for 24 to 36 hours, but that also means colder temperatures with possible freezing fog. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 9 AM SATURDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-

• Partly cloudy this evening, becoming mostly cloudy with areas of fog and freezing fog late tonight,
• Cloudy with areas of fog and freezing fog Saturday AM, mostly sunny in the afternoon, partly cloudy in the evening, mostly cloudy with patchy fog and possible isolated freezing fog late Saturday night,
• Cloudy with areas of AM fog and a good (50%) chance of rain, rain and bit warmer with rain Sunday afternoon, showers likely (70%) Sunday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Monday AM, a slight (20%) chance of showers in the afternoon , then partly cloudy with a slight (20%) chance of showers at night.
• lows 26-35 cooling back to near 32 Monday night highs 36-43.
• Mostly cloudy with a (30%) chance of rain Tuesday and Wednesday, mostly cloudy with a (30%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, mostly cloudy Wednesday night,
• Then partly cloudy Thursday through Friday (New Year’s Day).
• highs 43-45 cooling back to near 43 Friday lows 35-30. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy this evening, partly cloudy with areas of fog and freezing fog late tonight and Saturday AM, just partly cloudy in the afternoon and evening, mostly cloudy with areas of fog and freezing fog late Saturday night,
• Mostly cloudy with areas of AM freezing fog with rain and snow likely (70%),  a bit warmer with rain Sunday afternoon (snow level 2,000 ft. rising to 3,000 ft.), evening rain likely (70%), showers late Sunday night (snow level 2,500 ft.),
• Cloudy with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy at night.
• lows 27-36 cooling to 33 Monday night highs 40-44.
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain and snow Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, mostly cloudy at night,
• Then just partly cloudy and a bit cooler Thursday through Friday (New Year’s Day).
• highs 42-44 cooling to 38 Friday lows 36-34. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Partly cloudy with areas of coastal fog and freezing fog late tonight while areas of freezing fog inland late tonight,
• Mostly cloudy with areas of AM coastal fog and freezing fog while areas of freezing fog inland, just mostly cloudy Saturday afternoon, partly cloudy in the evening, mostly cloudy late Saturday night,
• Mostly cloudy with rain Sunday, evening rain likely (70%), showers late Sunday night,
• Mostly cloudy with a good (50%) chance of showers Monday, a slight (20%) chance of showers in the evening, then just mostly cloudy at night.
• lows 40-37 Monday night highs 48-50.
• Mostly cloudy with a (30%) chance of rain Tuesday and Tuesday night,
• Mostly cloudy with a (30%) chance of showers Wednesday, just mostly cloudy at night,
• Partly cloudy Thursday, partly cloudy with patchy fog Thursday night,
• Then partly cloudy Friday (New Year’s Day).
• highs 48-55 lows 40-37. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy this evening, becoming partly cloudy late tonight,
• Mostly sunny and a bit warmer Saturday, partly cloudy at night,
• Mostly cloudy with a slight (20%) chance of snow Sunday AM, snow likely (70%) in the afternoon, showers Sunday night,
• Cloudy with AM snow showers likely (70%), a (40%) chance of snow showers and a bit warmer Monday afternoon, then mostly cloudy with a slight (20%) chance of snow showers Monday night.
• free air freezing level at the surface tonight and Saturday, 4,000 ft. falling to the surface Saturday night, snow level at the surface Sunday, 3,000 ft. Sunday night, 2,500 ft. Monday, then at the surface Monday night.
• lows 6-22 cooling to 18 Monday night highs 28-32.
• Mostly cloudy with a slight (20%) chance of snow and a bit cooler Tuesday, a (40%) chance of rain or snow Tuesday night,
• Mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday, then just partly cloudy Wednesday night through Friday.
• snow level at the surface Tuesday, 3,000 ft. Tuesday night, 3,500 ft. Wednesday, free air freezing level 6,000 ft. Wednesday night, 7,500 ft. Thursday, then 9,000 ft. Thursday night and Friday.
• highs 29-37 lows 20-23.

________________

**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 new weekly weather quiz question. What is “Active Conservation Storage?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A broad upper level low is hovering over the Pacific Northwest. A frontal system has pushed through, but it wasn’t as strong as the one that hit us Monday. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 7 AM SATURDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

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

• A mix of clouds and sun with a good (50%) chance of AM showers, a bit cooler with a slight (20%) chance of afternoon showers (under 0.10 in. of rain possible, snow level 500 ft.-1,000 ft.) today (Christmas Day), partly cloudy this evening, mostly cloudy with areas of fog and freezing fog late tonight and Saturday AM, a mix of clouds and sun and a bit cooler Saturday afternoon, partly cloudy in the evening, mostly cloudy with areas of freezing fog late Saturday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday afternoon, then rain Sunday night.
• highs 42-36 warming back to 42 Sunday lows 26-35.
• Cloudy with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers at night,
• Cloudy with a (40%) chance of rain Tuesday, mostly cloudy with a slight  (20%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, then partly cloudy Wednesday night and Thursday.
• highs 42-45 lows near 35. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with a (40%) chance of rain and snow showers (under 0.10 in. of rain possible, snow level 800 ft. rising to 1,500 ft.) this afternoon (Christmas Day), a slight (20%) chance of rain and snow showers this evening, partly cloudy with areas of fog and freezing fog late tonight and Saturday AM, just partly cloudy in the afternoon, mostly cloudy with areas of fog and freezing fog Saturday night,
• Mostly cloudy with areas of AM freezing fog, mostly cloudy and a bit warmer with a good (50%) chance of rain Sunday afternoon, then rain likely (70%) Sunday night.
• highs 42-45 lows 26-35.
• Cloudy and a bit warmer with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and at night,
• Then just partly cloudy Thursday.
• highs 43-46 lows near 34. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with AM coastal showers likely (70%) while inland AM rain and snow showers likely (70%), a good (50%) chance of showers (0.15 in. of rain possible, snow level 2,000 ft.) and a bit warmer this afternoon (Christmas Day), partly cloudy with a slight (20%) chance of coastal evening showers and mostly cloudy late tonight while with a slight (20%) chance of inland scattered evening showers and partly cloudy late tonight, areas of fog and freezing fog late tonight,
• Mostly cloudy with areas of AM coastal fog and freezing fog while areas of freezing fog inland, just mostly cloudy Saturday afternoon, partly cloudy in the evening, mostly cloudy late Saturday night,
• Mostly cloudy with a good (50%) chance of rain Sunday, then rain likely (70%) Sunday night.
• highs 46-50 lows 30-40.
• Mostly cloudy with a (40%) chance of showers Monday, a slight (20%) chance of showers at night,
• A  slight (20%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night,
• Then just partly cloudy Thursday.
• highs 50-52 lows 37-42. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of snow showers today (Christmas Day), mostly cloudy with a slight (20%) chance of evening snow showers, becoming mostly clear late tonight,
• Mostly sunny and a bit warmer Saturday, partly cloudy at night,
• A mix of clouds and sun and a bit warmer Sunday, then becoming cloudy with snow likely (70%) at night.
• snow level at the surface today through this evening, free air freezing level at the surface late Friday night through Sunday, then snow level 2,500 ft. Sunday night.
• highs 25-29 lows 6-22.
• Cloudy with a (40%) chance of snow showers Monday, mostly cloudy with a slight (20%) chance of snow showers Monday night,
• A slight (20%) chance of snow and a bit cooler Tuesday, a slight (20%) chance of rain or snow Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Wednesday, just mostly cloudy at night,
• Then partly cloudy and a bit warmer Thursday.
• snow level 2,500 ft. Monday, at the surface Monday night and Tuesday, 3,500 ft. Tuesday night, 4,000 ft. Wednesday, free air freezing level 5,500 ft. Wednesday night, then 6,500 ft. Thursday.
• highs 33-30 warming to 40 Wednesday lows 19-22.

________________

**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 Conservation Storage?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A broad upper level low is hovering over the Pacific Northwest. A frontal system has pushed through, but it wasn’t as strong as the one that hit us Monday. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 47 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER WINTER WEATHER ADVISORY IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF RANGE OF NORTHWEST OREGON, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE CASCADES IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 7 PM TONIGHT UNTIL 4 PM THURSDAY ABOVE 2,000 FT. FOR JACKSON COUNTY.
• A WINTER STORM WARNING IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS,
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY ABOVE 1,500 FT. FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL AND EARSTN LAKE COUNTY.
• A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 7 AM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FREEZE WATCH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL MIDNIGHT TONIGHT ABOVE 1,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

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

• Mostly cloudy with showers likely (70%) this evening, a good (50%) chance of showers late tonight (0.10 in. of rain possible, 1 in. of snow possible above 750 ft., snow level from 1,000 ft. to 500 ft. and back again), No Valley accumulation expected tonight),
• A mix of clouds and sun with a good (50%) chance of AM showers, a bit cooler with a slight (20%) chance of afternoon showers (under 0.10 in. of rain possible) Friday (Christmas Day), partly cloudy in the evening, mostly cloudy with areas of fog and freezing fog late at night and Saturday AM, a mix of clouds and sun and a bit cooler Saturday afternoon, partly cloudy in the evening, mostly cloudy with areas of freezing fog late Saturday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday afternoon, then rain Sunday night.
• lows 32-26 warming to 35 Sunday night highs 42-36 warming back to 42 Sunday.
• Cloudy with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers at night,
• Cloudy with a (40%) chance of rain Tuesday, mostly cloudy with a slight  (20%) chance of rain Tuesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, then partly cloudy Wednesday night and Thursday.
• highs 42-45 lows near 35. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with increasing rain and snow showers this evening, scattered rain and snow showers (0.10 in. of rain possible, 1 in. of snow possible, snow level 700 ft.) late tonight (Christmas Eve),
• Mostly cloudy with a (40%) chance of rain and snow showers (under 0.10 in. of rain possible, snow level 800 ft. rising to 1,500 ft.) Friday afternoon (Christmas Day), a slight (20%) chance of rain and snow showers in the evening, partly cloudy with areas of fog and freezing fog late Friday night and Saturday AM, just partly cloudy in the afternoon, mostly cloudy with areas of fog and freezing fog Saturday night,
• Mostly cloudy with areas of AM freezing fog, mostly cloudy and a bit warmer with a good (50%) chance of rain Sunday afternoon, then rain likely (70%) Sunday night.
• lows 32-26 warming to 35 Sunday night highs 42-45.
• Cloudy and a bit warmer with a (40%) chance of showers Monday, mostly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and at night,
• Then just partly cloudy Thursday.
• highs 43-46 lows near 34. (seasonal averages high 48 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms this evening and showers late tonight while rain and snow showers likely (70%) inland (0.15 in. of rain possible, 1 in. of snow possible, snow level 1,500 ft. falling to 1,000 ft. late tonight) showers likely (70%) inland tonight (Christmas Eve),
• Mostly cloudy with AM coastal showers likely (70%) while inland AM rain and snow showers likely (70%), a good (50%) chance of showers (0.15 in. of rain possible, snow level 2,000 ft.) and a bit warmer Friday (Christmas Day), partly cloudy with a slight (20%) chance of coastal evening showers and mostly cloudy late at night while with a slight (20%) chance of inland scattered evening showers and partly cloudy late at night, areas of fog and freezing fog late at Friday night,
• Mostly cloudy with areas of AM coastal fog and freezing fog while areas of freezing fog inland, just mostly cloudy Saturday afternoon, partly cloudy in the evening, mostly cloudy late Saturday night,
• Mostly cloudy with a good (50%) chance of rain Sunday, then rain likely (70%) Sunday night.
• lows 36-30 warming to 40 Sunday night highs 46-50.
• Mostly cloudy with a (40%) chance of showers Monday, a slight (20%) chance of showers at night,
• A  slight (20%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night,
• Then just partly cloudy Thursday.
• highs 50-52 lows 37-42. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Cloudy with evening snow showers likely (70%), a good (50%) chance of snow showers (2-4 in. of snow possible) and cold late tonight (Christmas Eve),
• Mostly cloudy with a good (50%) chance of snow showers Friday (Christmas Day), mostly cloudy with a slight (20%) chance of evening snow showers, becoming mostly clear late Friday night,
• Mostly sunny and a bit warmer Saturday, partly cloudy at night,
• A mix of clouds and sun and a bit warmer Sunday, then becoming cloudy with snow likely (70%) at night.
• snow level at the surface tonight through Friday evening, free air freezing level at the surface late Friday night through Sunday, then snow level 2,500 ft. Sunday night.
• lows 6-22 highs 25-29.
• Cloudy with a (30%) chance of snow showers Monday, mostly cloudy with a slight (20%) chance of snow showers Monday night,
• A slight (20%) chance of snow and a bit cooler Tuesday, a slight (20%) chance of rain or snow Tuesday night,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Wednesday, just mostly cloudy at night,
• Then partly cloudy and a bit warmer Thursday.
• snow level 2,500 ft. Monday, at the surface Monday night and Tuesday, 3,500 ft. Tuesday night, 4,000 ft. Wednesday, free air freezing level 5,500 ft. Wednesday night, then 6,500 ft. Thursday.
• highs 33-30 warming to 40 Wednesday lows 19-22.

________________

**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 Conservation Storage?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A broad upper level low is hovering over the Pacific Northwest. A frontal system has pushed through, but it wasn’t as strong as the one that hit us Monday. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 47 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER WINTER WEATHER ADVISORY IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF RANGE OF NORTHWEST OREGON, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE NORTHERN OREGON CASCADES, AND THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER STORM WARNING IS IN EFFECT FROM 7PM TONIGHT UNTIL 4 PM THURSDAY ABOVE 2,000 FT. FOR JACKSON COUNTY.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY ABOVE 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM THIS AFTERNOON FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY BELOW 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

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

• Mostly cloudy and a bit cooler with showers today (0.25 in. of rain possible, 1 in. of snow possible above 750 ft., snow level from 1,000 ft. to 500 ft. and back again), a good (50%) chance of showers with rain/snow mix possible  down to the valley floor (under 0.10 in. of rain possible, snow level 500 ft., No accumulation expected) tonight (Christmas Eve),
• A mix of clouds and sun with a slight (20%) chance of AM showers (under 0.10 in. of rain possible) Friday (Christmas Day), partly cloudy with areas of fog and freezing fog late at night,
• Cloudy with areas of AM fog and freezing fog, a mix of clouds and sun and a bit cooler Saturday afternoon, then partly cloudy Saturday night.
• highs 42-36 lows 32-26 warming to 28 Saturday night.
• Becoming mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday, cloudy with rain likely (70%) at night,
• Mostly cloudy with a good (50%) chance of showers Monday, cloudy with a (40%) chance of showers Monday night,
• Cloudy with a good (50%) chance of rain Tuesday, mostly cloudy with a  (30%) chance of showers at night,
• Then just mostly cloudy and a bit warmer Wednesday.
• highs 40-45 lows near 35. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with AM rain and snow showers likely (70%), rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.15 in. of rain possible, 1-2 in. of snow possible above 1,500 ft. while 1 in. of snow possible below 1,500 ft., snow level 700 ft.), cloudy with evening rain and snow showers likely (70%) a (40%) chance of rain and snow showers late at night (0.10 in. of rain possible, snow level 800 ft.) tonight (Christmas Eve),
• Mostly cloudy with a (30%) chance of rain and snow showers (under 0.10 in. of rain possible, snow level 800 ft. rising to 1,500 ft.) Friday afternoon (Christmas Day), mostly cloudy with a slight (20%) chance of rain and snow showers in the evening, partly cloudy with patchy fog and freezing fog late Friday night and Saturday AM, just partly cloudy in the afternoon and evening, then mostly cloudy Saturday night.
• highs 42-39 lows 32-29.
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday, rain likely (70%) Sunday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Monday, a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, a (30%) chance of showers Tuesday night,
• Then mostly cloudy with a slight (20%) chance of showers Wednesday.
• highs 42-45 lows 36-32. (seasonal averages high 47 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms today while inland AM showers likely (70%) and a slight (20%) chance of thunderstorms with inland showers and snow showers likely (70%) and a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.20 in. of rain possible, snow level 1,500 ft.), evening coastal showers and a slight (20%) chance of thunderstorms and showers likely (70%) late tonight while rain and snow (0.15 in. of rain possible, snow level 1,500 ft.rising to 2,000 ft. late at night) showers likely (70%) inland tonight (Christmas Eve),
• Mostly cloudy with a (40%) chance of showers (snow level 1,500 ft. rising to 2,000 ft.) and a bit warmer Friday (Christmas Day), partly cloudy in the evening with a slight (20%) chance of scattered sprinkles and patchy fog and freezing fog late at night while patchy inland fog and freezing fog late Friday night,
• Mostly cloudy with areas of AM fog and freezing fog, partly cloudy Saturday afternoon and evening, then mostly cloudy late Saturday night.
• highs 46-48 lows 38-33 warming back to 38 Saturday night.
• Mostly cloudy with rain likely (60%) Sunday and at night,
• A showers likely (70%) Monday, mostly cloudy with a slight (20%) chance of showers Monday night and Tuesday, then mostly cloudy with a (30%) chance of showers Tuesday night and Wednesday.
• highs 48-52 lows near 40. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with snow showers today (2-6 in. of snow possible), cloudy with evening snow showers likely (70%), a good (50%) chance of snow showers (2-4 in. of snow possible) and cold late tonight (Christmas Eve),
• Mostly cloudy with a good (50%) chance of snow showers Friday (Christmas Day), partly cloudy with a slight (20%) chance of isolated evening snow flurries, becoming mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, then partly cloudy at night.
• snow level at the surface tonight through Friday night, free air freezing level at the surface Saturday, then 4,000 ft. Saturday night.
• highs 24-29 lows 14-10 warming back to 22 Saturday night.
• Mostly cloudy with a slight (20%) chance of snow Sunday, cloudy with a good (50%) of snow at night,
• A bit warmer with a (30%) chance of snow showers Monday, a slight (20%) chance of snow showers Monday night,
• Mostly cloudy with a (40%) chance of snow Tuesday, a slight (20%) chance of showers Tuesday night,
• Then a mix of clouds and sun and a bit warmer Wednesday.
• snow level 2,500 ft. Sunday through Monday, at the surface Monday night and Tuesday, 3,500 ft. Tuesday night, then free air freezing level 5,000 ft. Wednesday.
• highs 29-32 cooling to 30 Tuesday warming to 35 Tuesday night lows 24-27.

________________

**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 Conservation Storage?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

A broad upper level low is hovering over the Pacific Northwest. A frontal system has pushed through, but it wasn’t as strong as the one that hit us Monday. The next frontal system approaches the West Coast Sunday. Tuesday sees yet another frontal system headed for us. Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 47 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 12 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A WINTER STORM WARNING IS IN EFFECT THROUGH 4 AM THURSDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF RANGE OF NORTHWEST OREGON, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE NORTHERN OREGON CASCADES, THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• A WINTER STORM WARNING IS IN EFFECT FROM 7PM TONIGHT UNTIL 4 PM THURSDAY ABOVE 2,000 FT. FOR JACKSON COUNTY.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM THURSDAY ABOVE 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM THURSDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS.
• A HIGH SURF WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE NORTH OREGON COAST .
• A HIGH SURF ADVISORY IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE CENTRAL OREGON COAST, THE SOUTH CENTRAL OREGON COAST, AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 PM THIS EVENING UNTIL 4 PM THURSDAY ABOVE 1,500 FT. FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM THURSDAY ABOVE 3,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY.
• A HIGH SURF ADVISORY IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WARNING CONTINUES FOR THE PUDDING RIVER AT AURORA.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

________________

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

• Mostly cloudy with showers tonight (0.25 in. of rain possible),
• Mostly cloudy and a bit cooler with showers likely (70%) Thursday (0.10 in. of rain possible), a good (50%) chance of showers (under 0.10 in. of rain possible, snow level 500-1,000 ft. No accumulation expected) Thursday night (Christmas Eve),
• Mostly cloudy with a (30%) chance of showers (under 0.10 in. of rain possible, snow level 500-1,000 ft. No accumulation expected) Friday (Christmas Day), partly cloudy with patchy fog and freezing fog late at night,
• Cloudy with areas of AM fog and freezing fog, a mix of clouds and sun and a bit cooler Saturday, then partly cloudy Saturday night.
• lows 35-26 warming to 28 Saturday night highs 42-36.
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday, cloudy with rain at night,
• Mostly cloudy with a (40%) chance of showers Monday, a slight (20%) chance of showers Monday night,
• Cloudy with a good (50%) chance of rain Tuesday, mostly cloudy with a slight (20%) chance of showers at night,
• Then a mix of clouds and sun and a bit warmer Wednesday.
• highs 40-42 lows near 35. (seasonal averages high 45 low 33)

_____

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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Mostly cloudy with rain and snow showers with a slight (20%) chance of thunderstorms through late this evening, rain and snow late tonight (0.30 in. of rain possible, 1-2 in. of snow possible lower elevations and 3-4 in. of snow possible above 1,500 ft, snow level 600 ft.)
• Mostly cloudy with AM rain and snow showers likely (70%), rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler Thursday afternoon (0.15 in. of rain possible, 1 in. of snow possible, snow level 700 ft.), cloudy with evening rain and snow showers likely (70%) a (40%) chance of rain and snow showers late at night (0.10 in. of rain possible, 1 in. of snow possible, snow level 700 ft.) Thursday night (Christmas Eve),
• Mostly cloudy with a (30%) chance of rain and snow showers (under 0.10 in. of rain possible, snow level 700 ft. rising to 1,500 ft.) Friday afternoon (Christmas Day), mostly cloudy with a slight (20%) chance of flurries in the evening, partly cloudy with patchy fog and freezing fog late Friday night and Saturday AM, just partly cloudy in the afternoon and evening, then mostly cloudy Saturday night.
• lows 35-29 highs 42-39.
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday, rain likely (70%) Sunday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Monday, a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer with a (30%) chance of rain and snow Tuesday, just mostly cloudy Tuesday night,
• Then partly cloudy with a slight (20%) chance of showers Wednesday.
• highs 42-45 lows 36-32. (seasonal averages high 47 low 36)

________________

Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms this evening with rain and a slight (20%) chance of thunderstorms late tonight while inland evening showers with snow and a slight (20%) chance of thunderstorms tonight, rain late tonight (0.35 in. of rain possible, 1-2 in. of snow possible, snow level 1,500 ft. late at night),
• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms Thursday while inland AM showers likely (70%) and a slight (20%) chance of thunderstorms with inland showers and snow showers likely (70%) and a slight (20%) chance of thunderstorms and a bit cooler Thursday afternoon (0.20 in. of rain possible), evening coastal showers and a slight (20%) chance of thunderstorms and showers likely (70%) late at night while rain and snow (0.15 in. of rain possible, snow level 1,500 ft.) showers likely (70%) inland Thursday night (Christmas Eve),
• Mostly cloudy with a (40%) chance of showers (snow level 1,500 ft. rising to 2,000 ft.) and a bit warmer Friday (Christmas Day), partly cloudy in the evening with a slight (20%) chance of scattered sprinkles and patchy fog and freezing fog late at night while patchy inland fog and freezing fog late Friday night,
• Mostly cloudy with areas of AM fog and freezing fog, partly cloudy Saturday afternoon and evening, then mostly cloudy late Saturday night.
• lows 38-33 warming back to 38 Saturday night highs 46-48.
• Mostly cloudy with rain likely (70%) Sunday and at night,
• A good (50%) chance of showers Monday, mostly cloudy with a (30%) chance of showers Monday night,
• A (40%) chance of rain and a bit warmer Tuesday, just mostly cloudy at night,
• Then partly cloudy with a slight (20%) chance of showers Wednesday.
• highs 48-52 lows near 40. (seasonal averages high 51 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with snow showers and cold tonight (3-5 in. of snow possible),
• Mostly cloudy and a bit cooler with snow showers Thursday (3 in. of snow possible), cloudy with evening snow showers likely (70%), a good (50%) chance of snow showers and cold late Thursday night (Christmas Eve),
• Mostly cloudy with a (40%) chance of snow showers Friday (Christmas Day), partly cloudy with a slight (20%) chance of isolated evening snow flurries, just partly cloudy Friday night,
• Mostly sunny and a bit warmer Saturday, then partly cloudy at night.
• snow level at the surface tonight through Friday night, free air freezing level at the surface Saturday, then 4,000 ft. Saturday night.
• lows 22-10 warming back to 22 Saturday night highs 26-29.
• Mostly cloudy with a slight (20%) chance of snow Sunday, snow likely (70%) at night,
• A bit warmer with a (30%) chance of snow showers Monday, a slight (20%) chance of snow showers Monday night,
• Mostly cloudy with a (40%) chance of snow Tuesday, a slight (20%) chance of showers Tuesday night,
• Then a mix of clouds and sun and a bit warmer Wednesday.
• snow level 2,500 ft. Sunday through Monday, at the surface Monday night and Tuesday, 3,500 ft. Tuesday night, then free air freezing level 5,000 ft. Wednesday.
• highs 29-32 cooling to 30 Tuesday warming to 35 Tuesday night lows 254-27.

________________

**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.

________________