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 Tuesday.
Note: The overnight air quality in Oakridge has become bad enough for a Red Home Wood Heating Advisory to be issued.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 44 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 41 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 30 in the Good 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 – 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 10 AM NEXT MONDAY 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 FRIDAY FOR THE SOUTH CENTRAL OREGON COAST.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM NEXT WEDNESDAY 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 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy with patchy fog late tonight,
- Mostly cloudy with areas of AM freezing fog, mostly cloudy and a bit cooler with areas of lingering fog Friday afternoon and Saturday afternoon, mostly cloudy with areas of fog both nights,
- Areas of AM freezing fog, mostly cloudy and a bit warmer with areas of fog Sunday afternoon, then areas of fog at night.
- lows 28-25 warming back to 28 Sunday night highs 44-42 warming to 48 Sunday.
- Areas of AM freezing fog, a mix of clouds and sun and a bit cooler with patchy fog Monday afternoon, mostly cloudy with patchy fog Monday night.
- Patchy AM freezing fog, partly cloudy with patchy lingering fog Tuesday afternoon, patchy fog at night,
- Partly cloudy with patchy fog Wednesday and Wednesday night,
- Then a mix of clouds and sun with patchy fog Thursday.
- highs near 45 lows near 32. (seasonal averages high 46 low 34)
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Forecast for Roseburg:
- Mostly clear with patchy fog and freezing fog late tonight and Friday AM, sunny and a bit warmer in the afternoon, patchy evening fog, mostly clear with patchy fog late Friday night,
- Partly cloudy with areas of AM fog, sunny and a bit warmer Saturday afternoon, mostly clear with patchy fog Saturday night,
- Partly cloudy with areas of AM fog, sunny and a bit warmer Sunday afternoon, then mostly clear with patchy fog Sunday night.
- lows 29-34 highs 42-48.
- Areas of AM fog, sunny with areas of fog Monday and Tuesday, mostly clear with areas of fog both nights,
- Areas of AM fog and freezing fog, mostly sunny Wednesday and Thursday afternoons, then mostly clear with areas of freezing fog late at night.
- highs near 48 lows near 34. (seasonal averages high 48 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Clear tonight,
- Sunny and a bit cooler Friday afternoon, clear at night,
- Partly cloudy with areas of AM fog, sunny and a bit cooler Saturday afternoon, clear Saturday night,
- Partly cloudy with areas of AM fog, sunny and a bit warmer Sunday afternoon, then clear and colder Sunday night.
- lows 35-39 highs 59-56.
- Partly cloudy with areas of AM fog, sunny in the afternoon, clear at night Monday, Tuesday and Wednesday,
- Partly cloudy with areas of AM fog, then sunny Thursday afternoon.
- highs near 55 lows near 40. (seasonal averages high 51 Low 40)
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Forecast for the Cascades in Lane County:
- Clear tonight,
- Mostly sunny and a bit cooler Friday and Saturday, mostly clear both nights,
- Mostly sunny Sunday, then clear at night.
- free air freezing level 12,000 ft. falling to 11,000 ft. late tonight, 11,000 ft. rising to 12,000 ft. Friday afternoon, 11,000 ft. Friday night through Saturday night, 12,000 ft. Sunday, then 13,000 ft Sunday night.
- lows 29-27 warming back to 29 Sunday night highs 42-44.
- Mostly sunny Monday, mostly clear at night,
- Sunny Tuesday, mostly clear at night,
- Then mostly sunny Thursday.
- free air freezing level 12,000 ft. Monday through Wednesday, then 13,000 ft.Wednesday night and Thursday.
- highs near 44 lows near 28.
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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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