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Dec
14.
Finally a change in our weather Friday, but not today.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over from the High Pressure and enhancing the chance for precipitation. The graphics for days days 1-3 show the frontal system moving into the Pacific Northwest Friday. The graphics for days 3-7 show the parade of frontal systems starting to move toward and then across the Pacific Northwest Sunday through next Thursday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be continued for yet one more day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 80 in the Moderate category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 63 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM TODAY FOR THE LOWER COLUMBIA,
  • AN AIR STAGNATION ADVISORY IN IN EFFECT UNTIL 10 AM FRIDAY FOR THE CENTRAL WILLAMETTE VALLEY AND  THE SOUTH WILLAMETTE VALLEY, THE LOWER COLUMBIA,  THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, WALLOWA COUNTY, AND THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT DUE TO POOR AIR QUALITY CONDITIONS UNTIL FURTHER NOTICE FOR BAKER COUNTY,  HARNEY COUNTY, AND MALHEUR COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, AND NORTH CENTRAL OREGON.
  • 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 areas of freezing fog this AM, a mix of clouds and sun with areas of fog this afternoon, partly cloudy and a bit warmer with areas of fog late tonight,
  • Mostly cloudy with a (40%) chance of rain and a bit warmer Friday, a (30%) chance of evening showers, just mostly cloudy late Friday night,
  • A slight (20%) chance of rain and a bit warmer Saturday afternoon, just mostly cloudy Saturday night.
  • highs 42-47 lows near 35.
  • Patchy AM fog, mostly cloudy Sunday and at night,
  • Mostly cloudy Monday and Monday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, a (30%) chance of rain Tuesday night,
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain Wednesday.
  • highs 47-49 lows near 35. (seasonal averages high 45 low 34)

________________

 

Forecast for Roseburg:

  • Areas of AM fog and freezing fog, partly cloudy and a bit warmer with patchy lingering fog this afternoon and tonight,
  • Patchy AM fog, mostly cloudy with a (40%) chance of rain and a bit warmer Friday afternoon, a slight (20%) chance of evening showers, just mostly cloudy at night,
  • Then mostly cloudy and a bit cooler Saturday and Saturday night.
  • highs 42-46 lows near 36.
  • Mostly cloudy with areas of AM and afternoon fog and a bit cooler Sunday through Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
  • Then mostly cloudy and a bit warmer with a (30%) chance of rain Wednesday,
  • highs 42-38 warming to 43 Wednesday lows 35-38. (seasonal averages high 47 low 36)

 

_____________________

 

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

  • Partly cloudy this AM, sunny and a bit cooler this afternoon, partly cloudy tonight,
  • Mostly cloudy Friday with a (30%) chance of coastal rain while patchy AM inland fog and a (30%) chance of inland showers and a bit cooler Friday, a slight (20%) chance of evening inland showers, partly cloudy late at night,
  • Mostly cloudy and a bit cooler Saturday and Saturday night.
  • highs 58-50 lows 40-36 warming to 39 Saturday night.
  • Areas of AM fog, mostly cloudy and a bit warmer with areas of lingering fog Sunday afternoon, areas of fog at night.
  • Mostly cloudy and a bit warmer with AM fog and lingering afternoon fog Monday and Tuesday, a slight (20%) chance of rain Tuesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
  • highs 55-58 cooling to 50 Wednesday lows 39-42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly sunny today, partly cloudy tonight,
  • A mix of clouds and sun and a bit cooler with a (40%) chance of rain Friday, a (40%) chance of evening rain and snow showers, just mostly cloudy late at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of snow Saturday, just mostly cloudy at night.
  • free air freezing level 13,000 ft. today, 13,000 ft. falling to 12,000 ft. tonight, snow level 6,500 ft. Friday, 3,500 ft. Friday night, 2,500 ft. Saturday, then free air freezing level 5,500 ft. Saturday night.
  • highs 45-38 lows 32-26 warming to 29 Saturday night.
  • Mostly cloudy and a bit warmer Sunday, just mostly cloudy at night,
  • Mostly cloudy Monday and Monday night,
  • A mix of clouds and sun with a slight (20%) chance of rain and snow showers Tuesday, partly cloudy with a slight (20%) chance of rain and snow at night,
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Wednesday.
  • snow level 8,000 ft. Sunday and Sunday night, 7,500 ft. Monday and Monday night, snow level 5,500 ft. Tuesday and Tuesday night, then 4,500 ft. Wednesday.
  • highs 42-40 lows 30-32 cooling 28 Tuesday 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.

________________


Dec
13.
Just one more day like this, then the rain chance returns.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over for the High Pressure and enhancing the chance for precipitation. The graphics for days days 1-3 show the frontal system moving into the Pacific Northwest Friday. The graphics for days 3-7 show the parade of frontal systems starting to move toward and then across the Pacific Northwest Sunday through next Thursday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be continued for yet one more day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 71 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 71 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 72 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, AND THE LOWER COLUMBIA.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, WALLOWA COUNTY, AND THE JOHN DAY BASIN.
  • AN AIR QUALITY ADVISORY IS IN EFFECT DUE TO POOR AIR QUALITY CONDITIONS UNTIL FURTHER NOTICE FOR BAKER COUNTY,  HARNEY COUNTY, AND MALHEUR COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, AND NORTH CENTRAL OREGON.
  • 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 areas of freezing fog late tonight and Thursday AM, mostly sunny with areas of fog Thursday afternoon, partly cloudy and a bit warmer with areas of fog late at night,
  • Mostly cloudy with a (40%) chance of rain and a bit warmer Friday, a (30%) chance of showers Friday night,
  • A slight (20%) chance of rain and a bit warmer Saturday, just mostly cloudy Saturday night.
  • lows 27-35 highs 42-47.
  • Patchy AM fog, mostly cloudy Sunday and at night,
  • Mostly cloudy Monday and Monday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, a (30%) chance of rain Tuesday night,
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain Wednesday.
  • highs 47-49 lows near 35. (seasonal averages high 45 low 34)

________________

 

Forecast for Roseburg:

  • Mostly clear with haze and patchy evening fog, partly cloudy with haze and patchy fog late tonight,
  • Areas of AM fog and freezing fog, partly cloudy and a bit warmer with patchy lingering fog in the afternoon and Thursday night,
  • Patchy AM fog, mostly cloudy with a (40%) chance of rain and a bit warmer Friday afternoon, a slight (20%) chance of evening showers, just mostly cloudy at night,
  • Then mostly cloudy and a bit cooler Saturday and Saturday night.
  • lows 33-36  highs 42-46.
  • Mostly cloudy with areas of AM and afternoon fog and a bit cooler Sunday through Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
  • Then mostly cloudy and a bit warmer with a (30%) chance of rain Wednesday,
  • highs 42-38 warming to 43 Wednesday lows 38-43. (seasonal averages high 47 low 36)

 

_____________________

 

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

  • Mostly clear tonight,
  • Partly cloudy Thursday AM, sunny and a bit cooler in the afternoon, partly cloudy late Thursday night,
  • Mostly cloudy Friday with patchy AM inland fog, a (30%) chance of showers and a bit cooler Friday, a slight (20%) chance of evening inland showers, partly cloudy at night,
  • Mostly cloudy and a bit cooler Saturday and Saturday night.
  • lows 36-40 cooling back to 36 Friday night warming to 39 Saturday night highs 58-50.
  • Areas of AM fog, mostly cloudy and a bit warmer with areas of lingering fog Sunday afternoon, areas of fog at night.
  • Mostly cloudy and a bit warmer with AM fog and lingering afternoon fog Monday and Tuesday, a slight (20%) chance of rain Tuesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
  • highs 55-57 cooling to 50 Wednesday lows 39-42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Clear tonight,
  • Mostly sunny Thursday, partly cloudy Thursday night,
  • A mix of clouds and sun and a bit cooler with a (40%) chance of rain Friday, a (40%) chance of rain and snow in the evening, just mostly cloudy late at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of snow Saturday, mostly cloudy at night.
  • free air freezing level 13,000 ft. tonight and Thursday, 13,000 ft. falling to 12,000 ft. Thursday night, snow level 6,500 ft. Friday, 3,500 ft. Friday night, 2,500 ft. Saturday, then 5,500 ft. Saturday night.
  • lows 25-32 cooling 26 Friday night warming to 29 Saturday night highs 45-38.
  • Mostly cloudy and a bit warmer Sunday, just mostly cloudy at night,
  • Mostly cloudy Monday and Monday night,
  • A mix of clouds and sun with a slight (20%) chance of rain and snow showers Tuesday, partly cloudy with a slight (20%) chance of rain and snow at night,
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Wednesday.
  • snow level above 8,000 ft. Sunday, 8,000 ft. Sunday night, 7,500 ft. Monday and Monday night, 5,500 ft. Tuesday and Tuesday night, then 4,500 ft. Wednesday.
  • highs 42-40 lows 30-32 cooling 28 Tuesday 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.

________________


Dec
13.
Here we go again, more freezing fog today.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over for the High Pressure and enhancing the chance for precipitation by Friday. The graphics for days 3-7 show frontal systems starting to move toward and then across the Pacific Northwest Saturday through next Wednesday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be continued for yet another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 95 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 131 in the Unhealthy category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 66 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, AND THE LOWER COLUMBIA.
  • A FREEZING FOG ADVISORY IS IN EFFECT FROM 2 AM UNTIL NOON TODAY FOR THE SOUTH WILLAMETTE VALLEY, NORTH CENTRAL OREGON.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR NORTH CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, AND NORTH CENTRAL OREGON.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL 9 AM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JACKSON COUNTY, AND JOSEPHINE 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:

  • Cloudy with areas of freezing fog this AM, sunny and a bit warmer this afternoon, mostly cloudy with areas of freezing fog late tonight and Thursday AM, partly cloudy and a bit warmer with areas of fog Thursday afternoon, partly cloudy in the evening, mostly cloudy and a bit warmer late at night,
  • Mostly cloudy with a (30%) chance of rain and a bit warmer Friday, then a slight (20%) chance of rain Friday night.
  • highs 40-47 lows 28-37.
  • Cloudy with a slight (20%) chance of rain Saturday, a (30%) chance of rain Saturday night,
  • Mostly cloudy with a (30%) chance of rain and a bit warmer Sunday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of showers Monday and Monday night,
  • Then cloudy with a (40%) chance of rain Tuesday.
  • highs 47-49 lows near 38. (seasonal averages high 45 low 34)

________________

 

Forecast for Roseburg:

  • Partly cloudy with areas of fog and freezing fog this AM, sunny and a bit warmer with patchy lingering afternoon fog, clear with haze and patchy evening fog, mostly cloudy with areas of freezing fog late tonight and Thursday AM, sunny and a bit warmer with patchy lingering fog in the afternoon, mostly clear with evening haze,  mostly cloudy late Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain and a bit warmer Friday and at night.
  •  highs 37-47 lows 32-37.
  • Mostly cloudy with a slight (20%) chance of rain and a bit cooler Saturday and Saturday night,
  • A slight (20%) chance of showers and a bit warmer Sunday and Sunday night,
  • Mostly cloudy Monday, mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Tuesday.
  • highs 46-52 cooling to 48 Tuesday lows 38-40. (seasonal averages high 47 low 36)

 

_____________________

 

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

  • Partly cloudy with patchy AM fog, sunny and a bit warmer this afternoon, clear with areas of coastal freezing fog late at night while patchy inland fog late tonight,
  • Partly cloudy Thursday AM, sunny and a bit warmer in the afternoon, mostly clear in the evening, becoming mostly cloudy late Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain and a bit cooler Friday and Friday night.
  • highs 57-52 lows 38-40 cooling back to 38 Friday night.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rain Saturday through Sunday night,
  • Just mostly cloudy Monday, mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Tuesday.
  • highs 52-55 cooling back to 52 Tuesday lows near 42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Sunny and a bit warmer today, clear tonight,
  • Mostly sunny Thursday, partly cloudy in the evening, mostly cloudy Thursday night,
  • A slight (20%) chance of AM rain, a mix of clouds and sun and a bit cooler with a (30%) chance of rain Friday afternoon, partly cloudy with a (30%) chance of rain and snow Friday night.
  • free air freezing level 13,000 ft. today through Thursday, 12,000 ft. Thursday night, snow level 7,000 ft. Friday, 4,500 ft. Friday night.
  • highs 42-39 lows 29-32 cooling to 27 Friday night.
  • Cloudy with a (30%) chance of rain and snow Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
  • A (30%) chance of rain and a bit warmer Sunday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of showers Monday, just mostly cloudy Monday night,
  • Then mostly cloudy with a (40%) chance of rain and snow Tuesday.
  • snow level 3,500 ft. Saturday, 6,000 ft. Saturday night, above 8,000 ft. Sunday, 7,500 ft. Sunday night, 7,000 ft. Monday, free air freezing level 8,000 ft. Monday night, then snow level 5,500 ft. Tuesday.
  • highs 39-42 lows 30-32.

 

 

 

 

________________

**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.

________________


Dec
12.
The freezing fog just doesn’t want to leave yet.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over for the High Pressure and enhancing the chance for precipitation by Friday. The graphics for days 3-7 show frontal systems starting to move toward and then across the Pacific Northwest Saturday through next Wednesday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be continued for yet another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 73 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 68 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, AND THE LOWER COLUMBIA.
  • A FREEZING FOG ADVISORY IS IN EFFECT FROM 2 AM UNTIL NOON WEDNESDAY FOR THE SOUTH WILLAMETTE VALLEY.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR NORTH CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY,  THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY, AND NORTH CENTRAL OREGON.
  • A DENSE FOG ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 9 AM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY, AND JACKSON 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:

  • Partly cloudy this evening, mostly cloudy with areas of freezing fog late tonight,
  • Cloudy with areas of freezing fog Wednesday AM, sunny and a bit warmer in the afternoon, mostly cloudy with areas of freezing fog late Wednesday night and Thursday AM, partly cloudy and a bit warmer with areas of fog Thursday afternoon, partly cloudy in the evening, mostly cloudy and a bit warmer late at night,
  • Mostly cloudy with a (30%) chance of rain and a bit warmer Friday, then a slight (20%) chance of rain Friday night.
  • lows 26-37 highs 44-47.
  • Cloudy with a slight (20%) chance of rain Saturday, a (30%) chance of rain Saturday night,
  • Mostly cloudy with a (30%) chance of rain and a bit warmer Sunday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of showers Monday and Monday night,
  • Then cloudy with a (40%) chance of rain Tuesday.
  • highs 47-49 lows near 38. (seasonal averages high 45 low 34)

________________

 

Forecast for Roseburg:

  • Mostly clear with patchy evening fog and haze, mostly cloudy with patchy fog and areas of freezing fog late tonight,
  • Partly cloudy with areas of fog and freezing fog Wednesday AM, sunny and a bit warmer with patchy lingering afternoon fog, clear with haze and patchy evening fog, mostly cloudy with areas of freezing fog late Wednesday night and Thursday AM, sunny and a bit warmer with patchy lingering fog in the afternoon, mostly clear with evening haze,  mostly cloudy late Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain and a bit warmer Friday and at night.
  • lows 32-37 highs 46-49.
  • Mostly cloudy with a slight (20%) chance of rain and a bit cooler Saturday and Saturday night,
  • A slight (20%) chance of showers and a bit warmer Sunday and Sunday night,
  • Mostly cloudy Monday, mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Tuesday.
  • highs 46-52 cooling to 48 Tuesday lows 38-40. (seasonal averages high 47 low 36)

 

_____________________

 

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

  • Mostly clear this evening, partly cloudy with patchy coastal frost late tonight,
  • Partly cloudy with patchy AM fog, sunny and a bit warmer Wednesday afternoon, clear with areas of coastal freezing fog late at night while patchy inland fog late Wednesday night,
  • Partly cloudy Thursday AM, sunny and a bit warmer in the afternoon, mostly clear in the evening, becoming mostly cloudy late Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain and a bit cooler Friday and Friday night.
  • lows near 36-38 highs 57-53.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rain Saturday through Sunday night,
  • Just mostly cloudy Monday, mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Tuesday.
  • highs 52-55 cooling back to 52 Tuesday lows near 42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Partly cloudy tonight,
  • Sunny and a bit warmer Wednesday, clear Wednesday night,
  • Mostly sunny Thursday, partly cloudy in the evening, mostly cloudy Thursday night,
  • A slight (20%) chance of AM rain, a mix of clouds and sun and a bit cooler with a (30%) chance of rain Friday afternoon, partly cloudy with a (30%) chance of rain and snow Friday night.
  • free air freezing level 12,000 ft. tonight, 13,000 ft. Wednesday through Thursday, 12,000 ft. Thursday night, snow level 7,000 ft. Friday, 4,500 ft. Friday night.
  • lows 26-32 cooling to 27 Friday night highs 42-39.
  • Cloudy with a (30%) chance of rain and snow Saturday, mostly cloudy with a slight (20%) chance of rain Saturday night,
  • A (30%) chance of rain and a bit warmer Sunday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of showers Monday, just mostly cloudy Monday night,
  • Then mostly cloudy with a (40%) chance of rain and snow Tuesday.
  • snow level 5,000 ft. Saturday, 6,000 ft. Saturday night, above 8,000 ft. Sunday, 7,500 ft. Sunday night, 7,000 ft. Monday, free air freezing level 8,000 ft. Monday night, then snow level 5,500 ft. Tuesday.
  • highs 39-42 lows 30-32.

 

 

 

 

________________

**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.

________________


Dec
12.
Still chilly with freezing fog.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my new weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over for the High Pressure and enhancing the chance for precipitation. The graphics for days 3-7 show frontal systems starting to move toward and then across the Pacific Northwest Friday through next Tuesday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

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

Oakridge: The Air Quality Index is 80 in the Moderate category measuring Particulate Matter.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, AND THE LOWER COLUMBIA.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR NORTH CENTRAL OREGON, THE EASTERN COLUMBIA RIVER, THE LOWER COLUMBIA BASIN OF OREGON THE JOHN DAY BASIN, AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR CENTRAL OREGON, THE EAST SLOPES OF THE OREGON CASCADES.
  • 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 freezing fog this AM, partly cloudy and a bit warmer this afternoon and evening, cloudy with areas of fog and freezing fog late tonight,
  • Cloudy with areas of freezing fog Wednesday AM, sunny in the afternoon, mostly cloudy with areas of freezing fog late Wednesday night and Thursday AM, a mix of clouds and sun and a bit cooler with areas of lingering fog Thursday afternoon, then partly cloudy with a slight (20%) chance of rain at night.
  • highs near 44 lows 28-37.
  • Mostly cloudy with a good (50%) chance of rain and a bit warmer Friday, a slight (20%) chance of rain Friday night,
  • Cloudy with a (40%) chance of rain and a bit cooler Saturday, cloudy with a good (50%) chance of rain Saturday night,
  • A (40%) chance of rain and a bit warmer Sunday, mostly cloudy with a (40%) chance of showers at night,
  • Then cloudy with  slight (20%) chance of showers Monday.
  • highs 50-48 warming back to 50 Sunday and Monday lows near 39. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Partly cloudy with areas of AM fog, sunny and a bit cooler with patchy lingering fog this afternoon, mostly clear with patchy evening fog, mostly cloudy areas of fog and freezing fog late tonight,
  • Partly cloudy with areas of fog and freezing fog Wednesday AM, sunny Wednesday with patchy lingering afternoon fog, clear with patchy evening fog, mostly cloudy with areas of fog and freezing fog late Wednesday night and Thursday AM, sunny and a bit warmer with patchy lingering fog in the afternoon,  then just partly cloudy Thursday night.
  • highs 37-39 lows 33-35.
  • Mostly cloudy with a (40%) chance of rain and a bit warmer Friday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a (30%) chance of rain Saturday, through Sunday (a bit warmer), a slight (20%) chance of rain Sunday night,
  • Then just mostly cloudy and a bit warmer Monday.
  • highs 48-50 lows 38-42. (seasonal averages high 48 low 36)

 

_____________________

 

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

  • Partly cloudy with patchy AM coastal fog while areas of AM inland fog today, sunny and a bit cooler this afternoon, mostly clear this evening, partly cloudy with patchy coastal frost late tonight,
  • Partly cloudy with patchy AM fog, sunny Wednesday afternoon, clear with patchy coastal frost late at night,
  • Partly cloudy with areas of AM fog Thursday, sunny in the afternoon, partly cloudy Thursday night.
  • highs near 58 lows near near 40.
  • Mostly cloudy with a (40%) chance of rain and a bit cooler Friday, partly cloudy with a slight (20%) chance of  evening rain, mostly cloudy with a slight (20%)chance of rain Friday night,
  •  Mostly cloudy with a (30%) chance of rain Saturday through Sunday (a bit warmer), mostly cloudy with a slight (20%) chance of rain Sunday night,
  • Then just mostly cloudy Monday,
  • highs 53-56 lows near 42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly sunny and a bit warmer today, partly cloudy tonight,
  • Mostly sunny Wednesday and Thursday, clear Wednesday night, then partly cloudy Thursday night.
  • free air freezing level 12,000 ft. today and tonight, 13,000 ft. Wednesday through Thursday, then 11,000 ft. Thursday night.
  • highs near 42 lows 30-33.
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of rain Friday, mostly cloudy with a good (50%) chance of rain and snow Friday night,
  • Cloudy and a bit cooler with a good (50%) chance of rain and snow Saturday, a good (50%) chance of rain Saturday night,
  • Cloudy with a (40%) chance of rain and a bit warmer Sunday, mostly cloudy with a(40%) chance of showers at night,
  • A slight (20%) chance of rain and snow showers Monday.
  • snow level 7,500 ft. Friday, 4,000 ft. Friday night, 5,000 ft. Saturday, 8,000 ft. Saturday night and Sunday, 7,000 ft. Sunday night, then 5,500 ft. Monday.
  • highs 40-43 lows 28-32.

 

 

 

 

________________

**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.

________________


Dec
11.
Getting tired of freezing fog? It’ll be gone by the end of the week.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s the difference? It Can Be Important.

__________

Here is my new weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will move closer taking over for the High Pressure and enhancing the chance for precipitation. The graphics for days 3-7 show frontal systems starting to move toward and then across the Pacific Northwest Friday through next Tuesday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 62 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 44 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 60 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, AND THE LOWER COLUMBIA.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR NORTH CENTRAL OREGON, THE EASTERN COLUMBIA RIVER, THE LOWER COLUMBIA BASIN OF OREGON THE JOHN DAY BASIN, AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR CENTRAL OREGON, THE EAST SLOPES OF THE OREGON CASCADES.
  • 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 clear this evening, mostly cloudy with freezing fog late tonight and Tuesday AM, partly cloudy and a bit warmer in the afternoon and evening, cloudy with areas of fog and freezing fog late at night,
  • Cloudy with areas of freezing fog Wednesday AM, sunny in the afternoon, mostly cloudy with areas of freezing fog late Wednesday night and Thursday AM, a mix of clouds and sun and a bit cooler with areas of lingering fog Thursday afternoon, then partly cloudy with a slight (20%) chance of rain at night.
  • lows 24-35 highs 42-39.
  • Mostly cloudy with a good (50%) chance of rain and a bit warmer Friday, a slight (20%) chance of rain Friday night,
  • Cloudy with a (40%) chance of rain and a bit warmer Saturday, cloudy with a good (50%) chance of rain Saturday night,
  • Cloudy with a (40%) chance of rain and a bit warmer Sunday, mostly cloudy with a (40%) chance of showers at night,
  • Then cloudy and a bit cooler with  slight (20%) chance of showers Monday.
  • highs 48-52 cooling to 48 Monday lows near 39. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Clear with patchy evening fog, areas of fog and freezing fog late tonight,
  • Partly cloudy with areas of AM fog, sunny and a bit cooler with patchy lingering fog Tuesday afternoon, mostly clear with patchy evening fog, mostly cloudy areas of fog and freezing fog late Tuesday night,
  • Partly cloudy with areas of fog and freezing fog Wednesday AM, sunny Wednesday with patchy lingering afternoon fog, clear with patchy evening fog, mostly cloudy with areas of fog and freezing fog late Wednesday night and Thursday AM, sunny and a bit warmer with patchy lingering fog in the afternoon,  then just partly cloudy Thursday night.
  • lows 32-35 highs 37-39.
  • Mostly cloudy with a (40%) chance of rain and a bit warmer Friday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a (30%) chance of rain Saturday, through Sunday (a bit warmer), a slight (20%) chance of rain Sunday night,
  • Then just mostly cloudy and a bit warmer Monday.
  • highs 48-50 lows 38-42. (seasonal averages high 48 low 36)

 

_____________________

 

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

  • Mostly clear with patchy coastal fog and frost tonight while patchy fog inland late tonight,
  • Partly cloudy with patchy AM coastal fog while areas of AM inland fog Tuesday, sunny and a bit cooler in the afternoon, mostly clear in the evening, partly cloudy with patchy coastal frost late Tuesday night,
  • Partly cloudy with patchy AM fog, sunny Wednesday afternoon, clear with patchy coastal frost late at night,
  • Partly cloudy with areas of AM fog Thursday, sunny in the afternoon, partly cloudy Thursday night.
  • lows near near 40 highs near 58.
  • Mostly cloudy with a (40%) chance of rain and a bit cooler Friday, partly cloudy with a slight (20%) chance of  evening rain, mostly cloudy with a slight (20%)chance of rain Friday night,
  •  Mostly cloudy with a (30%) chance of rain Saturday through Sunday (a bit warmer), mostly cloudy with a slight (20%) chance of rain Sunday night,
  • Then just mostly cloudy Monday,
  • highs 53-56 lows near 42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly clear tonight,
  • Mostly sunny and a bit warmer Tuesday, partly cloudy at night,
  • Mostly sunny Wednesday and Thursday , clear Wednesday night, then partly cloudy Thursday night.
  • free air freezing level 12,000 ft. falling o 11,000 ft. late tonight, 12,000 ft. Tuesday and Tuesday night, 13,000 ft. Wednesday through Thursday, then 11,000 ft. Thursday night.
  • lows 25-32 highs 40-42.
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of rain Friday, mostly cloudy with a good (50%) chance of rain and snow Friday night,
  • Cloudy and a bit cooler with a good (50%) chance of rain and snow Saturday, a good (50%) chance of rain Saturday night,
  • Cloudy with a (40%) chance of rain Sunday, mostly cloudy with a(40%) chance of showers at night,
  • A slight (20%) chance of rain and snow showers Monday.
  • snow level 7,500 ft. Friday, 4,000 ft. Friday night, 5,000 ft. Saturday, 8,000 ft. Saturday night and Sunday, 7,000 ft. Sunday night, then 5,500 ft. Monday.
  • highs near 38 lows near 30.

 

 

 

 

________________

**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.

________________


Dec
11.
Tired of the fog and freezing fog? More through Thursday.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column What’s The Difference? It Can Be Important.

__________

Here is my new weekly weather quiz question. What is a “Cold Air Funnel“? The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. The graphics for days 3-7 show that high pressure will extend right down to the surface keeping us out dry through Thursday, then frontal systems start moving in as high pressure relinquishes its hold on us.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 67 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 72 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON.
  • A FREEZING FOG ADVISORY IS IN EFFECT FROM 2 AM UNTIL 10 AM TODAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
  • A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT THURSDAY FOR THE EAST SLOPES OF THE OREGON CASCADES, THE NORTHERN BLUE MOUNTAINS OF OREGON,  THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, AND NORTH CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR CENTRAL OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR NORTHERN HARNEY COUNTY, THE LOWER TREASURE VALLEY OF OREGON, AND THE BAKER VALLEY. ELEVATED POLLUTANT LEVELS ARE EXPECTED TO REMAIN AS HIGH PRESSURE PRODUCES SUBSIDENCE THAT HOLDS THE POLLUTANTS AT THE SURFACE.
  • 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 areas of freezing fog this AM, sunny with patchy lingering fog this afternoon, clear this evening, areas of freezing fog late tonight,
  • Cloudy with areas of AM freezing fog, mostly sunny with patchy lingering fog Tuesday afternoon, partly cloudy in the evening, cloudy with areas of fog and freezing fog late at night and Wednesday AM, partly cloudy with lingering patchy fog in the afternoon, areas of fog and freezing fog late Wednesday night.
  • highs 42-45 lows 23-27.
  • AM freezing fog, a mix of clouds and sun Thursday with patchy afternoon lingering fog, mostly cloudy with a slight (20%) chance of rain at night,
  • Mostly cloudy with a good (50%) chance of rain and a bit warmer Friday and Friday night,
  • Mostly cloudy with rain likely (70%) Saturday, cloudy with rain likely (70%) Saturday, a good (50%) chance of rain Saturday night,
  • Then cloudy with a good (50%) chance of showers Sunday.
  • highs 40-50 lows 35-39. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Mostly cloudy with areas of AM fog and freezing fog, sunny and a bit warmer with patchy lingering fog this afternoon, mostly clear with patchy evening fog, areas of fog and freezing fog late tonight,
  • Partly cloudy with areas of AM fog, sunny with patchy lingering fog Tuesday afternoon, areas of fog and freezing fog late Tuesday night and Wednesday AM, sunny and a bit warmer Wednesday with patchy lingering afternoon fog, patchy evening fog, then mostly clear with areas of fog and freezing fog late Wednesday night.
  • highs 40-44 lows 32-35.
  • Partly cloudy with areas of fog and freezing fog Thursday AM, partly cloudy and a bit warmer with patchy lingering fog in the afternoon, mostly cloudy with a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a slight (20%) chance of AM rain, a slight (20%) chance of showers Friday afternoon, mostly cloudy with a (30%) chance of rain at night and Saturday, rain likely (70%) Saturday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Sunday,
  • highs 42-50 lows 40-42. (seasonal averages high 48 low 37)

 

_____________________

 

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

  • Partly cloudy with areas of AM fog, sunny this afternoon, mostly clear with patchy coastal frost tonight,
  • Partly cloudy with areas of AM fog Tuesday, sunny in the afternoon, partly cloudy with patchy coastal frost Tuesday night,
  • Partly cloudy with patchy AM fog, sunny Wednesday, then mostly clear at night.
  • highs near 60 lows near near 40.
  • Partly cloudy with areas of AM fog, just partly cloudy and a bit cooler in the afternoon, becoming mostly cloudy with  a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a (40%) chance of rain and a bit cooler Friday through Saturday,
  • Then mostly cloudy with a good (50%) chance of rain Sunday.
  • highs 55-53 lows 42-44. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly sunny today, mostly clear tonight,
  • Mostly sunny and a bit warmer Tuesday, partly cloudy and a bit warmer at night and Wednesday, then clear Wednesday night.
  • free air freezing level 13,000 ft. today, 12,000 ft. tonight through Wednesday, then 13,000 ft. Wednesday night.
  • highs 40-42 lows 24-28.
  • Mostly sunny and a bit warmer Thursday, mostly cloudy with a slight (20%) chance of rain Thursday night,
  • Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Friday and at night,
  • Cloudy and a bit cooler with a good (50%) chance of rain and snow Saturday, rain likely (70%) Saturday night,
  • Then cloudy with a good (50%) chance of showers Sunday.
  • free air freezing level 13,000 ft. Thursday, snow level above 8,000 ft. Thursday night, 5,500 ft. Friday, 4,500 ft. Friday night, 5,500 ft. Saturday, above 8,000 ft. Saturday night, then 7,500 ft. Sunday.
  • highs 42-36 lows 32-30.

 

 

 

 

________________

**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.

________________


Dec
10.
Still more fog and freezing fog in the forecast. Watch out for slippery spots.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column “I Can See Clearly Now,” But For How Long?

__________

Here is my weekly weather quiz question for the last time. What is “Coalescence?” Here is the correct answer. Coalescence is the process by which water droplets in a cloud collide and come together to form raindrops. I’ll have a new weekly weather question starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. The graphics for days 3-7 show that high pressure will extend right down to the surface keeping us out dry through Thursday, then frontal systems start moving in as high pressure relinquishes its hold on us.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 33 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 63 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON MONDAY FOR CENTRAL OREGON.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON MONDAY FOR NOTH CENTRAL OREGON AND CENTRAL OREGON.
  • A DENSE FOG ADVISORY IS IN EFFECT FROM 2 AM UNTIL 10 AM MONDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT THURSDAY FOR THE EAST SLOPES OF THE OREGON CASCADES, THE NORTHERN BLUE MOUNTAINS OF OREGON,  THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, AND NORTH CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR CENTRAL OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR NORTHERN HARNEY COUNTY, THE LOWER TREASURE VALLEY OF OREGON, AND THE BAKER VALLEY. ELEVATED POLLUTANT LEVELS ARE EXPECTED TO REMAIN AS HIGH PRESSURE PRODUCES SUBSIDENCE THAT HOLDS THE POLLUTANTS AT THE SURFACE.
  • 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 patchy freezing fog this evening, mostly cloudy with areas of freezing fog late tonight and Monday AM, sunny with patchy lingering fog Monday afternoon, clear in the evening, areas of freezing fog late Monday night,
  • Cloudy with areas of AM freezing fog, mostly sunny with patchy lingering fog Tuesday afternoon, partly cloudy in the evening, cloudy with areas of fog and freezing fog late at night and Wednesday AM, partly cloudy with lingering patchy fog in the afternoon, areas of fog and freezing fog late Wednesday night.
  • lows 23-27 highs near 40.
  • AM freezing fog, a mix of clouds and sun Thursday with patchy afternoon lingering fog, mostly cloudy with a slight (20%) chance of rain at night,
  • Mostly cloudy with a good (50%) chance of rain and a bit warmer Friday and Friday night,
  • Mostly cloudy with rain likely (70%) Saturday, cloudy with rain likely (70%) Saturday, a good (50%) chance of rain Saturday night,
  • Then cloudy with showers likely (70%) Sunday.
  • highs 40-49 lows 35-37. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Clear with patchy evening fog, partly cloudy with areas of fog and freezing fog late tonight,
  • Mostly cloudy with areas of AM fog and freezing fog, sunny and a bit warmer with patchy lingering fog Monday afternoon, mostly clear with patchy evening fog, areas of fog and freezing fog late Monday night,
  • Partly cloudy with areas of AM fog, sunny with patchy lingering fog Tuesday afternoon, areas of fog and freezing fog late Tuesday night and Wednesday AM, sunny and a bit warmer Wednesday with patchy lingering afternoon fog, patchy evening fog, then mostly clear with areas of fog and freezing fog late Wednesday night.
  • lows 28-34 highs 40-42.
  • Partly cloudy with areas of fog and freezing fog Thursday AM, partly cloudy and a bit warmer with patchy lingering fog in the afternoon, mostly cloudy with a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a slight (20%) chance of AM rain, a slight (20%) chance of showers Friday afternoon, mostly cloudy with a (30%) chance of rain at night and Saturday, rain likely (70%) Saturday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Sunday,
  • highs 46-49 cooling back to 46 Saturday lows 37-39. (seasonal averages high 48 low 37)

 

_____________________

 

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

  • Clear tonight with patchy coastal frost,
  • Partly cloudy with areas of AM fog, sunny Monday afternoon, mostly clear with patchy coastal frost Monday night,
  • Partly cloudy with areas of AM fog Tuesday, sunny in the afternoon, partly cloudy with patchy coastal frost Tuesday night,
  • Partly cloudy with patchy AM fog, sunny Wednesday, then mostly clear at night.
  • lows near near 38 highs near 60.
  • Partly cloudy with areas of AM fog, just partly cloudy and a bit cooler in the afternoon, becoming mostly cloudy with  a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a (40%) chance of rain and a bit cooler Friday through Saturday,
  • Then mostly cloudy with a good (50%) chance of rain Sunday.
  • highs 55-53 lows 42-44. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Partly cloudy this evening, clear tonight,
  • Sunny Monday, clear in the evening, partly cloudy Monday night,
  • Mostly sunny and a bit warmer Tuesday, partly cloudy and a bit warmer at night and Wednesday, then clear Wednesday night.
  • free air freezing level 13,000 ft. tonight and Monday, 12,000 ft. Monday night through Wednesday, then 13,000 ft. Wednesday night.
  • lows 26-29 highs 38-40.
  • Mostly sunny and a bit warmer Thursday, mostly cloudy with a slight (20%) chance of rain Thursday night,
  • Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Friday and at night,
  • Cloudy and a bit cooler with a good (50%) chance of rain and snow Saturday, rain likely (70%) Saturday night,
  • Then cloudy with a good (50%) chance of showers Sunday.
  • free air freezing level 13,000 ft. Thursday, snow level above 8,000 ft. Thursday night, 5,500 ft. Friday, 4,500 ft. Friday night, 5,500 ft. Saturday, above 8,000 ft. Saturday night, then 7,500 ft. Sunday.
  • highs 43-38 lows 32-29.

 

 

 

 

________________

**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.

________________


Dec
10.
Another chilly day with fog, freezing fog, and frost. Please drive carefully.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column “I Can See Clearly Now,” But For How Long?

__________

Here is my weekly weather quiz question for the last time. What is “Coalescence?” Here is the correct answer. Coalescence is the process by which water droplets in a cloud collide and come together to form raindrops. I’ll have a new weekly weather question starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. The graphics for days 3-7 show that high pressure will extend right down to the surface keeping us out dry through next week and a frontal system moving in next Saturday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 78 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 68 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR NORTH CENTRAL OREGON, AND CENTRAL OREGON.
  • A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON    THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, AND NORTH CENTRAL OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR NORTHERN HARNEY COUNTY, THE LOWER TREASURE VALLEY OF OREGON, AND THE BAKER VALLEY. ELEVATED POLLUTANT LEVELS ARE EXPECTED TO REMAIN AS HIGH PRESSURE PRODUCES SUBSIDENCE THAT HOLDS THE POLLUTANTS AT THE SURFACE.
  • 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 areas of dense fog and freezing fog this AM, mostly sunny and a bit warmer with some patchy lingering fog this afternoon, mostly clear in the evening, patchy fog late tonight,
  • Mostly cloudy with AM patchy freezing fog, a mix of clouds and sun with patchy lingering fog Monday afternoon, partly cloudy with patchy fog Monday night,
  • Patchy AM dense freezing fog, mostly sunny with patchy lingering fog Tuesday afternoon, then mostly cloudy with areas of fog and freezing fog late at night.
  • highs near 40 lows 23-26.
  • Mostly cloudy with areas of fog and freezing fog Wednesday AM, a mix of clouds and sun with lingering patchy fog in the afternoon, mostly cloudy with areas of fog and freezing fog Wednesday night and Thursday AM, a mix of clouds and sun and a bit warmer with patchy afternoon lingering fog, mostly cloudy with a slight (20%) chance of rain at night,
  • A mix of clouds and sun with a (30%) chance of rain and a bit warmer Friday, mostly cloudy with a (30%) chance of rain Friday night,
  • Then mostly cloudy with a (40%) chance of rain Saturday.
  • highs 40-49 lows 27-35. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Partly cloudy with areas of fog and freezing fog this AM, sunny and a bit warmer today with patchy lingering fog this afternoon, mostly clear with patchy fog and freezing fog tonight,
  • Partly cloudy with areas of AM fog and freezing fog, sunny and a bit warmer Monday afternoon, mostly clear with areas of fog late at night,
  • Partly cloudy with areas of AM fog, sunny Tuesday afternoon, mostly clear with areas of fog and freezing fog late Tuesday night.
  • highs 40-42 lows 28-34.
  • Areas of AM and late night fog and freezing fog, mostly sunny and a bit warmer Wednesday, mostly clear with areas off and freezing fog Wednesday night,
  •  Areas of fog and freezing fog Thursday AM, partly cloudy and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of rain Thursday night and Friday (a bit warmer), mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Saturday.
  • highs 46-49 cooling back to 46 Saturday lows 37-39. (seasonal averages high 48 low 37)

 

_____________________

 

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

  • Partly cloudy with patchy AM coastal frost, sunny and a bit warmer this afternoon, clear tonight,
  • Partly cloudy with areas of AM fog, sunny Monday afternoon, clear and colder Monday night,
  • Partly cloudy with areas of AM fog, sunny Tuesday, mostly clear and colder at night,
  • highs near 60 lows near near 38.
  • Partly cloudy with patchy AM fog, sunny and a bit cooler Wednesday, clear and colder at night,
  • Areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain Friday AM, partly cloudy and a bit cooler with a slight (20%) chance of rain in the afternoon, mostly cloudy with a slight (20%) chance of evening rain, partly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Saturday.
  • highs 56-52 lows 38-42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly sunny today, Monday, and Tuesday, mostly clear each night,
  • free air freezing level 12,000 ft. rising to 13,000 ft.late this afternoon, 13,000 ft. falling to 12,000 ft. tonight, 12,000 ft. Monday through Tuesday, then 11,000 ft. Tuesday night.
  • highs 38-40 lows 25-28.
  • Mostly sunny Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday, mostly cloudy with a (30%) chance of rain Thursday night,
  • A mix of clouds and sun with a (40%) chance of rain and snow Friday,  mostly cloudy with a (40%) chance of rain and snow Friday night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Saturday.
  • free air freezing level 12,000 ft. Wednesday, 13,000 ft. Wednesday night, 12,000 ft. Thursday, snow level above 8,000 ft. Thursday night, 5,500 ft. Friday, 4,500 ft. Friday night, then 6,500 ft. Saturday.
  • highs 40-43 cooling to 38 Saturday lows 29-33 cooling back to 29 Friday 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.

________________


Dec
09.
Still more fog and freezing fog for your Sunday.
No Comments
Category: Uncategorized

Check out my latest Eugene Daily News Weather Or Not column “I Can See Clearly Now,” But For How Long?

__________

Here is my weekly weather quiz question for the last time. What is “Coalescence?” Here is the correct answer. Coalescence is the process by which water droplets in a cloud collide and come together to form raindrops. I’ll have a new weekly weather question starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

Upper Level High Pressure (Shaded “Arch” shape with blue arrows) is still in control producing sinking air the result of which is late night and early AM fog with freezing fog in many locations. The graphics for days 3-7 show that high pressure will extend right down to the surface keeping us out dry through next week and a frontal system moving in next Saturday.

 Note: The overnight air quality in Eugene/Springfield and Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.

________________

Air Quality Index:

Eugene/Springfield: The Air Quality Index is 70 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 30 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 70 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

Home Wood Burning Advisory:

(Posted Daily)

Eugene-Springfield: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

Oakridge: RED – Burning Prohibited. No Visible Smoke Allowed From A Chimney On A Residential Home.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

__________________

ADVISORIES:

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
  • A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON SUNDAY FOR NORTH CENTRAL OREGON, AND CENTRAL OREGON.
  • A DENSE FOG ADVISORY IS IN EFFECT UNTIL 9 AM SUNDAY FOR CENTRAL DOUGLAS COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON TUESDAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON    THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, AND NORTH CENTRAL OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL FURTHER NOTICE FOR NORTHERN HARNEY COUNTY, THE LOWER TREASURE VALLEY OF OREGON, AND THE BAKER VALLEY. ELEVATED POLLUTANT LEVELS ARE EXPECTED TO REMAIN AS HIGH PRESSURE PRODUCES SUBSIDENCE THAT HOLDS THE POLLUTANTS AT THE SURFACE.
  • 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 clear this evening, cloudy with patchy dense fog and freezing fog late tonight and Sunday AM, mostly sunny and a bit warmer with some patchy lingering fog in the afternoon, mostly clear in the evening, patchy fog late at night,
  • Mostly cloudy with AM patchy dense freezing fog, a mix of clouds and sun with patchy lingering fog Monday afternoon, partly cloudy with patchy fog Monday night,
  • Patchy AM dense freezing fog, mostly sunny with patchy lingering fog Tuesday afternoon, then mostly cloudy with areas of fog and freezing fog late at night.
  • lows near 24 highs near 43.
  • Mostly cloudy with areas of fog and freezing fog Wednesday AM, a mix of clouds and sun with lingering patchy fog in the afternoon, mostly cloudy with areas of fog and freezing fog Wednesday night and Thursday AM, a mix of clouds and sun and a bit warmer with patchy afternoon lingering fog, mostly cloudy with a slight (20%) chance of rain at night,
  • A mix of clouds and sun with a (30%) chance of rain and a bit warmer Friday, mostly cloudy with a (30%) chance of rain Friday night,
  • Then mostly cloudy with a (40%) chance of rain Saturday.
  • highs 44-49 lows 27-35. (seasonal averages high 46 low 34)

________________

 

Forecast for Roseburg:

  • Partly cloudy with areas of fog and freezing fog late tonight and Sunday AM, sunny and a bit warmer Sunday with patchy lingering fog in the afternoon, mostly clear with patchy fog and freezing fog Sunday night,
  • Partly cloudy with areas of AM fog and freezing fog, sunny and a bit warmer Monday afternoon, mostly clear with areas of fog late at night,
  • Partly cloudy with areas of AM fog, sunny Tuesday afternoon, mostly clear with areas of fog and freezing fog late Tuesday night.
  • lows 30-28 warming to 34 Tuesday night highs 40-42.
  • Areas of AM and late night fog and freezing fog, mostly sunny and a bit warmer Wednesday, mostly clear with areas off and freezing fog Wednesday night,
  •  Areas of fog and freezing fog Thursday AM, partly cloudy and a bit warmer in the afternoon, partly cloudy with a slight (20%) chance of rain Thursday night and Friday (a bit warmer), mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Saturday.
  • highs 46-49 cooling back to 46 Saturday lows 37-39. (seasonal averages high 48 low 37)

 

_____________________

 

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

  • Mostly clear with patchy coastal frost tonight,
  • Partly cloudy with patchy AM coastal frost, sunny and a bit warmer Sunday afternoon, clear at night,
  • Partly cloudy with areas of AM fog, sunny Monday afternoon, clear and colder Monday night,
  • Partly cloudy with areas of AM fog, sunny Tuesday, mostly clear and colder at night,
  • lows near near 38 highs near 60.
  • Partly cloudy with patchy AM fog, sunny and a bit cooler Wednesday, clear and colder at night,
  • Areas of AM fog, partly cloudy and a bit cooler Thursday afternoon, a slight (20%) chance of rain Thursday night,
  • Mostly cloudy with a slight (20%) chance of rain Friday AM, partly cloudy and a bit cooler with a slight (20%) chance of rain in the afternoon, mostly cloudy with a slight (20%) chance of evening rain, partly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Saturday.
  • highs 56-52 lows 38-42. (seasonal averages high 51 Low 40)

 

 

________________

 

Forecast for the Cascades in Lane County:

  • Mostly clear tonight,
  • Mostly sunny Sunday, Monday, and Tuesday, mostly clear each night,
  • free air freezing level 12,000 ft. tonight and Sunday, 13,000 ft. falling to 12,000 ft. Sunday night, 12,000 ft. Monday through Tuesday, then 11,000 ft. Tuesday night.
  • lows near 26 highs near 43.
  • Mostly sunny Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday, mostly cloudy with a (40%) chance of rain Thursday night,
  • A mix of clouds and sun with a (40%) chance of rain and snow Friday,  mostly cloudy with a (40%) chance of rain and snow Friday night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Saturday.
  • free air freezing level 12,000 ft. Wednesday, 13,000 ft. Wednesday night, 12,000 ft. Thursday, snow level above 8,000 ft. Thursday night, 5,500 ft. Friday, 4,500 ft. Friday night, then 6,500 ft. Saturday.
  • highs 44-46 cooling back to 44 Friday lows near 33.

 

 

 

 

________________

**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.

________________


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