That persistent Upper Level High Pressure Ridge (“Arch” shape) continues sending cold air from the north over the Pacific Northwest keeping us colder than normal. The graphics for days 1-3 show a stationary sitting just inland of the West Coast. The graphics for days 3-7 Tuesday through S aturday show a stationary front that plants itself just inland of the West Coast. A frontal system will push into Oregon next Friday.
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Air Quality Index
Eugene/Springfield: The Air Quality Index is 85 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 152 in the Unhealthy category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 76 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A COLD WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 AM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 AM SUNDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- A COLD WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 PM SUNDAY FOR CENTRAL DOUGLAS COUNTY.
- A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
- A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SUNDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOUS MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SUNDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SUNDAY FOR THE CURRY COUNTY COAST.
- A WIND ADVISORY IS IN EFFECT UNTIL 10 AM SUNDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- A WIND ADVISORY IS IN EFFECT UNTIL 10 PM SUNDAY FOR CENTRAL DOUGLAS COUNTY.
- A WIND ADVISORY IS IN EFFECT FROM 4 AM TODAY UNTIL 10 AM SUNDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM MONDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM SUNDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY
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HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER 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:
- Sunny today, clear tonight,
- Sunny and a bit cooler Sunday, clear Sunday night,
- Sunny and a bit cooler Monday, then clear with areas of frost Monday night.
- highs 45-43 lows 24-26. .
- Patchy AM frost, sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny and a bit warmer Wednesday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late at night,
- Mostly cloudy with a good (50%) chance of rain Thursday, rain Thursday night,
- Then mostly cloudy and a bit cooler with rain Friday.
- highs 46-48 cooling back to 46 Friday lows 28-236. (seasonal averages high 49 low 35)
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HOME WOOD HEATING ADVISORY:
The Eugene & Springfield: YELLOW – Fireplace and wood stove used is cautioned. Protect air quality by not heating with wood when possible.
Oakridge And Westfir: YELLOW – Fireplace and wood stove used is cautioned. Protect air quality by not heating with wood when possible.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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:Forecast for the Umpqua Valley including Roseburg
- Sunny today, clear tonight,
- Sunny and a bit warmer Sunday, clear Sunday night,
- Sunny and a bit warmer Monday, then clear at night.
- highs 45-49 lows 27-24 warming to 29 Monday night .
- Sunny and a bit warmer Tuesday, clear Tuesday night,
- Sunny and a bit warmer Wednesday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late at night,
- Mostly cloudy and a bit warmer with a (30%) chance of rain Thursday, a good (50%) chance of rain Thursday night,
- Then mostly cloudy and a bit cooler with rain likely (70%) Friday.
- highs 560-52 cooling back to 49 Thursday lows 30-35 (seasonal averages high 51 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny with inland widespread AM frost, clear tonight,
- Sunny and slightly warmer Sunday, clear with widespread frost Sunday night,
- AM widespread frost, sunny and a bit warmer Monday afternoon, then clear at night.
- highs 52-56 lows 27-32.
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy with a (30%) chance of evening rain, mostly cloudy with a (30%) chance of rain at night,
- Mostly cloudy with a good (50%) chance of rain and a bit cooler Thursday, evening rain, rain likely (70%) Thursday night,
- Then mostly cloudy and a bit warmer with rain likely (70%) Friday.
- highs 55-52 warming to 54 Friday lows 29-42. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit cooler today, mostly clear tonight,
- Sunny and a bit warmer Sunday, clear Sunday night,
- Sunny and warmer Monday, then clear at night.
- free air freezing level at the surface today through Sunday, 5,000 ft. rising to 5,500 ft. late Sunday night, 8,000 ft. Monday, then 9,000 ft. Monday night.
- highs 33-26 warming to 42 Sunday low 14-19.
- Sunny and a bit warmer Tuesday, clear Tuesday night,
- Sunny and a bit warmer Wednesday, partly cloudy with a slight (20%) chance of rain and snow at night,
- A mix of clouds and sun with a good (50%) chance of AM rain and snow, mostly cloudy and a bit cooler with a good (50%) of rain and snow Thursday afternoon, snow and rain Thursday night,
- Then mostly cloudy and a bit cooler with snow and rain Friday.
- free air freezing level 10,000 ft. Tuesday, 11,000 ft. Tuesday night and Wednesday, snow level 4,500 ft. Wednesday night through Thursday night, then 4,000 ft. Friday.
- highs 44-45 cooling to 40 Thursday lows 24-27 cooling to 25 Wednesday night.