Check out my latest Eugene Daily News Weather Or Not column “I Can See Clearly Now,” But For How Long?
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Upper Level High Pressure (Shaded “Arch” shape with blue arrows) has taken over producing sinking air the result of which is late night and early AM fog with freezing fog in some locations. The graphics for days 3-7 show that high pressure will extend right down to the surface keeping us out dry through next Saturday.
Note: The overnight air quality in Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued and continued for another day.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 63 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 54 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Home Wood Burning Advisory:
(Posted Daily)
Eugene-Springfield: YELLOW – Caution Is Advised.
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)
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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 FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
- A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON SATURDAY FOR NORTH CENTRAL OREGON AND CENTRAL OREGON.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL 8 AM SATURDAY 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, 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
- 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy this evening, mostly cloudy with areas of fog and freezing fog late tonight,
- Clouds with areas of AM fog and freezing fog, mostly sunny with patchy lingering fog Saturday afternoon, mostly cloudy with areas of fog and freezing fog late at night and Sunday AM, mostly cloudy and a bit warmer with patchy fog in the afternoon, mostly clear in the evening, areas of fog and freezing fog late at night,
- Areas of AM freezing fog, a mix of clouds and sun and a bit warmer Monday afternoon, then partly cloudy with patchy fog and freezing fog Monday night.
- lows 26-30 highs 43-45.
- Patchy AM fog and freezing fog, partly cloudy with patchy lingering fog and a bit warmer Tuesday afternoon, mostly cloudy with areas of fog and freezing fog late at night and 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,
- Areas of AM fog and freezing fog, a mix of clouds and sun with patchy afternoon fog Thursday, mostly cloudy with areas of fog and freezing fog late at night,
- Areas of AM fog and freezing fog, then a mix of clouds and sun Friday afternoon.
- highs near 46 lows 30-33 cooling back to 30 Wednesday night warming back to 33 Thursday night. (seasonal averages high 46 low 34)
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Forecast for Roseburg:
- Mostly clear with patchy fog this evening, partly cloudy with areas of fog late tonight,
- Partly cloudy with areas of AM fog, sunny and a bit warmer Saturday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Saturday night,
- Partly cloudy with areas of AM fog, sunny and a bit warmer Sunday afternoon, mostly clear with patchy fog Sunday night,
- Areas of AM fog, mostly sunny and a bit warmer Monday, then mostly clear with areas of fog at night.
- lows 32-35 highs 40-52.
- Partly cloudy with areas of AM fog, sunny and a bit cooler Tuesday afternoon, mostly clear with areas of fog and freezing fog Tuesday night,
- Areas of AM and late night fog and freezing fog, mostly sunny and a bit warmer Wednesday and Thursday (a bit cooler) afternoons, mostly clear both nights,
- Patchy AM fog, the just partly cloudy Friday.
- highs 48-52 cooling back to 48 Friday lows near 36. (seasonal averages high 48 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear this evening, partly cloudy late tonight,
- Partly cloudy with areas of AM fog, sunny Saturday afternoon, clear Saturday night,
- Partly cloudy with areas of AM fog, sunny and a bit cooler Sunday afternoon and Monday, clear and colder at night,
- lows near 38-40 highs 65-59.
- Partly cloudy with areas of AM fog, sunny and a bit cooler Tuesday and Wednesday, clear and colder at night,
- Partly cloudy with areas of AM fog, sunny Thursday afternoon, mostly clear Thursday night,
- Mostly cloudy with patchy AM fog, then partly cloudy and a bit cooler Friday afternoon.
- highs 57-52 lows near 40. (seasonal averages high 51 Low 40)
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Forecast for the Cascades in Lane County:
- Partly cloudy tonight,
- Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
- Sunny Sunday, clear at night,
- Mostly sunny Monday, then mostly clear Monday night.
- free air freezing level 11,000 ft. tonight, 11,000 ft. rising to 12,000 ft. Saturday, 12,000 ft. Saturday night and Sunday, 13,000 ft. falling to 12,000 ft. Sunday night, then 12,000 ft. Monday and Monday night.
- lows 29-32 highs near 45.
- Sunny Tuesday, mostly clear at night,
- Mostly sunny Wednesday, mostly clear Wednesday night,
- Mostly sunny and a bit warmer Thursday, then partly cloudy Thursday night and Friday.
- free air freezing level 12,000 ft. Tuesday, 13,000 ft. Tuesday night through Thursday night, then 12,000 ft. Friday.
- highs 44-46 cooling back to 44 Friday lows near 33.
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**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.
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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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