Jan
25.
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 Wednesday through Sunday show a stationary front that plants itself just inland of the West Coast. A frontal system will push into Oregon next Friday and Saturday.
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Air Quality Index
Eugene/Springfield: The Air Quality Index is 76 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 180 in the Unhealthy category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 68 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 UNTIL 10 AM TODAY THE NORTHERN OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE NORTH OREGON COAST RANGE, THE CENTRAL OREGON COAST RANGE, THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, THE PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, THE INNER PORTLAND METRO, THE EAST PORTLAND METRO, THE OUTER SOUTHEAST PORTLAND METRO, THE WEST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, THE LANE COUNTY LOWLANDS, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, THE LANE COUNTY CASCADE FOOTHILLS.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE CUTRRY COUNTY COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM MONDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, AND 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.
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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:
- Widespread AM frost, sunny and a bit cooler today, mostly clear with widespread frost tonight,
- Widespread AM frost, sunny and a bit cooler Monday, clear with widespread frost at night,
- Widespread AM frost, sunny and a bit warmer Tuesday, then clear with widespread frost Tuesday night.
- highs 45-46 lows 23-28.
- Widespread AM frost, sunny and a bit warmer Wednesday afternoon, mostly clear in the evening, partly cloudy with widespread frost Wednesday night,
- Widespread AM frost, mostly cloudy with a slight (20%) chance of rain and a bit warmer Thursday afternoon, rain likely (70%) at night,
- Mostly cloudy and a bit cooler with rain Friday, rain Friday night,
- Then mostly cloudy and a bit cooler with rain and a slight (20%) chance of snow Saturday.
- highs 47-48 cooling to 45 Saturday lows 30-38 cooling to 36 Friday night. (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 and a bit cooler today, clear tonight,
- Sunny and a bit warmer Monday, clear at night,
- Sunny and a bit cooler Tuesday, then clear Tuesday night.
- highs 42-50 cooling to 46 Tuesday lows near 30.
- Mostly sunny and a bit cooler Wednesday, mostly clear Wednesday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday and in the evening, rain likely (70%) late at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Friday,
- Then mostly cloudy and a bit cooler with rain and snow likely (70%) Saturday.
- highs 44-50 cooling back to 44 Saturday lows 29-40 cooling to 36 Friday night (seasonal averages high 51 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Widespread AM frost, sunny and a bit warmer this afternoon, clear with widespread frost tonight,
- AM widespread frost, sunny and a bit warmer Monday afternoon, clear with areas of evening frost, widespread frost late at night,
- M frost, sunny and a bit warmer Tuesday, then clear Tuesday night.
- highs 54-58 cooling to 56 Tuesday lows 28-30.
- Sunny and a bit cooler Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
- Mostly cloudy with a (30%) chance of rain and a bit cooler Thursday, rain at night,
- Mostly cloudy and a bit warmer with rain Friday, rain likely (70%) Friday night,
- Then mostly cloudy with rain likely (70%) Saturday.
- highs 50-52 cooling 49 Saturday lows 32-44 cooling to 36 Friday night. (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, clear tonight,
- Sunny and warmer Monday, clear at night,
- Sunny and a bit warmer Tuesday, then clear Tuesday night.
- free air freezing level at the surface rising to 4,000 ft. this afternoon, 5,500 ft. rising to 6,000 ft. late tonight, 7,000 ft. rising to 10,000 ft. Monday afternoon, 9,000 ft. falling to 8,000 ft. Monday night, then 11,000 ft. Tuesday and Tuesday night.
- highs 30-46 low 18-28.
- Sunny and a bit warmer Wednesday,mostly clear Wednesday night,
- Mostly sunny with a slight (20%) chance of rain and a bit cooler Thursday, rain and snow likely (70%) at night,
- Mostly cloudy and a bit cooler with rain and a slight (20%) chance of snow Friday, snow and rain Friday night,
- Then mostly cloudy and a bit cooler with snow and rain Saturday.
- free air freezing level 11,000 ft. Wednesday and Wednesday night, snow level 4,500 ft. Thursday, 5,000 ft. Thursday night and Friday, 4,000 ft, Thursday night, 5,000 ft. Friday, 4,000 ft. Friday night, then 3,000 ft. Saturday.
- highs 49-32 lows 27 -32 cooling to 25 Friday night.