Jan
26.
A Blocking 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 Thursday through Monday show a cold frontal system pushing into Oregon next Friday and Saturday. A stationary front will be to our Northwest and a complex frontal system will be closing in on the Oregon coast next Monday.
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Air Quality Index
Eugene/Springfield: The Air Quality Index is 86 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 127 in the Unhealthy for Sensitive Group scategory measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 82 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 MONDAY FOR THE CENTRAL OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE, THE WEST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS,
- A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM MONDAY FOR THE SOUTH CENTRAL OREGON COAST.
- A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST.
- A COLD WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A COLD WEATHER ADVISORY IS IN EFFECT FROM 10 -PM TONIGHT UNTIL 10 AM MONDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE 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:
- Clear with widespread frost tonight,
- Widespread AM frost, sunny and a bit cooler Monday, clear with widespread frost Monday night,
- Widespread AM frost, sunny and a bit warmer Tuesday, clear with widespread frost at night,
- Widespread AM frost, sunny and a bit warmer Wednesday afternoon, mostly clear in the evening, then partly cloudy with widespread frost Wednesday night.
- lows 24-29 highs 45-48.
- AM clouds and sun with widespread frost, mostly cloudy Thursday afternoon, rain likely (70%) Thursday night,
- Mostly cloudy and a bit warmer with rain Friday, rain at night,
- Mostly cloudy and a bit cooler with rain Saturday, rain Saturday night,
- Then mostly cloudy and a bit cooler with rain and a slight (20%) chance of snow Sunday.
- highs 48-49 cooling to 44 Sunday lows 39-41 cooling to 36 Saturday 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
- Clear tonight,
- Sunny and slightly cooler Monday, clear Monday night,
- Sunny and a bit warmer Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- lows 29-27 warming to 32 Tuesday night and Wednesday night highs 48-52.
- Some AM clouds, mostly cloudy and a bit cooler with a slight (20%) chance of rain Thursday afternoon, mostly cloudy with a (40%) chance of rain Thursday night,
- Mostly cloudy with rain Friday, rain Friday night,
- Mostly cloudy with rain Saturday, rain likely (70%) Saturday night,
- Mostly cloudy with AM rain, then rain likely (70%) and a bit cooler Sunday afternoon.
- highs 48-47 lows 42-45 cooling to 42 Saturday night (seasonal averages high 51 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Clear with areas of evening coastal frost and widespread coastal frost late tonight while areas of early evening inland frost and frost tonight,
- AM widespread frost, sunny and a bit warmer Monday afternoon, clear with areas of evening frost, widespread late evening frost continuing overnight Monday night,
- Widespread AM frost, sunny and a bit cooler Tuesday afternoon, clear at night,
- Widespread AM frost, sunny and a bit cooler Wednesday afternoon, mostly clear in the evening, then partly cloudy late Wednesday night.
- lows 28-32 cooling to 30 Wednesday night highs 56-52.
- Mostly cloudy with a slight (20%) chance of rain Thursday afternoon, cloudy with a slight (20%) of evening rain, rain late Thursday night,
- Mostly cloudy with rain and a bit warmer Friday, rain at night,
- Mostly cloudy with rain and a bit cooler Saturday and Saturday night,
- Then mostly cloudy and a bit warmer with rain Sunday.
- highs 52-53 cooling to 50 Saturday warming to 52 Sunday lows 44-48 cooling to 42 Saturday night. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Clear tonight,
- Sunny and cooler Monday, clear Monday night,
- Sunny and a bit cooler Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- free air freezing level 6,000 ft. rising to 6,500 ft. late tonight, 8,000 ft. rising to 10,000 ft. Monday afternoon, 10,000 ft. falling to 9,000 ft. Monday night, 10,000 ft. rising to 11,000 ft. Tuesday afternoon, 11,000 ft. falling to 10,000 ft. Tuesday night, then 11,000 ft. Wednesday and Wednesday night.
- low 18-27 highs 42-49.
- Mostly sunny and a bit cooler Thursday, mostly cloudy rain and snow likely (70%) Thursday night,
- Mostly cloudy and cooler with rain snow Friday, rain and snow at night,
- Mostly cloudy and a bit cooler with snow and rain Saturday and Saturday night,
- Then mostly cloudy with snow and rain Sunday.
- snow level 4,500 ft. Thursday, 5,000 ft. Thursday night, 5,500 ft. Friday, 4,500 ft. Friday night, 3,500 ft. Saturday, 3,000 ft. Saturday night, then 2,500 ft. Sunday.
- highs 47-32 lows 32-25 .