Jan
30.
An Upper Level Low Pressure Trough (“U” shape) takes over from the Upper Level High Pressure Ridge allowing clouds and rain to move into the Pacific Northwest. The graphics for days 1-3 show two frontal systems approaching the West Coast. The graphics for days 3-7 Sunday through Thursday show that frontal systems that will be heading our way through the period.
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Air Quality Index
Eugene/Springfield: The Air Quality Index is 68 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 70 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL UNTIL 4 PM SATURDAY ABOVE 3,000 FT. FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT FROM 1 AM FRIDAY UNTIL 10 AM SATURDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 PM SATURDAY FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 AM FRIDAY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM FRIDAY UNTIL 10 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY 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.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 5 AM MST FRIDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
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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:
- Mostly cloudy with a good (50%) chance of evening rain, mostly cloudy with rain late tonight (0.50 in. of rain possible),
- Mostly cloudy and a bit warmer with rain Friday (0.75 in. of rain possible), evening rain, showers late Friday night (0.50 in. of rain possible),
- Mostly cloudy and a bit cooler with showers Saturday, rain and snow showers likely (70%) at night,
(70%) Saturday night, - Mostly cloudy and a bit cooler with rain snow showers likely (70%) Sunday (snow level 1,000 ft.), rain with snow Sunday night (snow level 1,000 ft.)
- lows 39-32 highs 52-42.
- Mostly cloudy with snow with rain likely (70%) and a bit cooler Monday (snow level 1,000 ft.), snow likely (70%) with a slight (20%) chance of rain Monday night (snow level 500 ft.) ,
- Mostly cloudy and a bit cooler with snow likely (70%) and a slight (20%) chance of rain Tuesday (snow level 500 ft.), snow likely (70%) with a slight (20%) chance of rain Tuesday night (snow level 500 ft.),
- Mostly cloudy with snow likely (70%) and a slight (20%) chance of rain and a bit cooler Wednesday (snow level 500 ft.),
- Mostly cloudy and a bit cooler with rain and snow likely (70%) Thursday (snow level 1,000 ft.)
- highs 40-38 lows 29-25. (seasonal averages high 50 low 35)
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HOME WOOD HEATING ADVISORY:
The Eugene & Springfield: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
Oakridge And Westfir: GREEN– Fireplace and wood stove used is allowed. 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
- Patchy AM fog, mostly cloudy and a bit cooler today, cloudy with rain tonight,
- Mostly cloudy and slightly warmer with rain Friday, rain Friday night (snow level 2,000 ft. late tonight),
- Mostly cloudy with rain and snow likely (70%) and a bit cooler Saturday, then rain and snow likely (70%) Saturday night,
- highs 50-42 lows 42-32. .
- Mostly cloudy with rain and snow and a bit cooler Sunday, rain and snow Sunday night,
- Mostly cloudy and a bit cooler with rain and snow Monday, rain and snow likely (70%) at night,
- Mostly cloudy with AM rain and snow likely (70%), rain and snow Tuesday night,
- Mostly cloudy with AM snow likely (70%), then rain and snow and a bit warmer Wednesday afternoon.
- highs near 40-42 lows 27-26 (seasonal averages high 52 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with early evening coastal rain likely (70%) and late evening coastal rain late tonight while a good (50%) chance of inland evening rain and a slight (2o%) chance of inland rain late tonight, breezy (Wind: SW 15-25 mph),
- Mostly cloudy with rain and breezy (Wind: S 15-25 mph, early afternoon gusts to 40 mph until early afternoon) and a bit warmer with a slight (20%) chance of thunderstorms Friday and breezy (Wind: SW 15-25 mph), coastal rain Friday night while inland rain and a slight
(20%) chance of thunderstorms and inland rain late Friday night (snow level 2,000 ft. late at night), - Mostly cloudy with AM coastal rain and a bit cooler with a good (50%) chance of coastal rain Saturday afternoon while inland AM rain and snow and a good (50%) chance of inland rain and snow in the afternoon (snow level 1,500 ft. ), a (40%) chance of evening coastal rain coastal rain late at night, while a good (50%) chance of evening inland rain and snow with inland rain and snow likely (70%) late at night (snow level 1,000 ft.),
- Mostly cloudy with AM rain and snow likely (70%), a bit cooler with rain and snow Sunday afternoon, evening rain and snow likely (70%), then a good (50%) chance of rain and snow Sunday night.
- lows 45-35 highs 54-47 cooling to 45 Sunday.
- Mostly cloudy and a bit cooler with a rain and snow likely (70%) Monday and Monday night,
- Mostly cloudy with rain and snow likely (70%) Tuesday, rain and snow likely (70%) at night,
- Mostly cloudy and a bit cooler with rain and snow likely (70%) Wednesday, rain and snow likely (70%) Wednesday night,
- Mostly cloudy with a good (50%) chance of AM rain and snow, then rain likely (70%) and a bit warmer Thursday afternoon.
- highs 45-47 lows 30-28 warming back to 30 Wednesday night (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of evening rain, rain and snow late tonight (0.50 in. of rain possible, 1-3 in. of snow possible),
- Mostly cloudy and warmer with rain and snow Friday (1.50 in. of rain possible, 4-8 in. of snow possible, snow possibly heavy at times), rain and snow showers Friday night (1.00 in. of rain possible, 5-11 in. of snow possible, snow possibly heavy at times),
- Mostly cloudy and a bit cooler with snow showers Saturday, snow showers Saturday night,
- Mostly cloudy with snow and a bit cooler Sunday (snow possibly heavy at times), then snow Sunday night.
- snow level 4,500 ft. tonight, 5,500 ft. Friday, 5,500 ft. Friday night, 5,000 ft. falling to 3,000 ft. Saturday, then at the surface Saturday night through Sunday night.
- low 32-18 highs 35-26.
- Mostly cloudy and a bit warmer with snow Monday, snow likely (70%) Monday night,
- Mostly cloudy and a bit cooler with snow Tuesday snow likely (70%) at night,
- Mostly cloudy with snow Wednesday, snow likely (70%) Wednesday night,
- Then mostly cloudy and a bit warmer with snow likely (70%) Thursday.
- snow level at the surface Sunday, 2,000 ft. Sunday night and Monday, 2,500 ft. Monday night, then at the surface Tuesday through Wednesday.
- highs 27-25 warming back to 27 Thursday lows 16-13 warming to 15 Wednesday night.