Feb
17.
An Upper Level Low Pressure Trough (“U” shape) is moving eastward through the Pacific Northwest. The graphics for days 1-3 show the frontal system that will move through Oregon Wednesday. The graphics for days 3-7 Thursday through Monday show the 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 22 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 39 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 21 in the Good 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 UNTIL 4 AM TUESDAY ABOVE 4,000 FT. FOR THE NORTHERN BLUE MOUNTAINS OF 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:
- Mostly cloudy with a good (50%) chance of evening showers, a slight (20%) chance showers with patchy fog late tonight (under 0.10 in. of rain possible),
- Patchy AM fog with a slight (20%) chance of rain, mostly cloudy with rain and slightly cooler Tuesday (under 0.10 in. of rain possible), rain Tuesday night (0.25 in. of rain possible),
- Mostly cloudy with rain Wednesday, showers at night,
- Mostly cloudy with a good (50%) chance of AM showers, partly cloudy and a bit warmer with a good (50%) chance of showers Thursday afternoon, then mostly cloudy with patchy fog Thursday night.
- lows 40-45 cooling to 36 Thursday night highs 52-55.
- Mostly cloudy with patchy fog and a bit warmer Friday, a good (50%) of rain Friday night,
- Mostly cloudy with a good (50%) chance of rain and a bit warmer Saturday, a (40%) chance of rain at night,
- Mostly cloudy with rain Sunday, rain likely (70%) Sunday night,
- Then mostly cloudy with rain likely (70%) Monday.
- highs 56-59 lows 43-50 cooling to 48 Sunday night (seasonal averages high 52 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:
- Mostly cloudy with a (30%) chance of evening and late evening showers likely (70%), a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
- Cloudy with a slight (20%) chance of rain Tuesday (under 0.10 in. of rain possible), rain Tuesday night (0.10 in. of rain possible),
- Mostly cloudy with AM rain, showers Wednesday afternoon, mostly cloudy with a (30%) chance of late showers Wednesday night,
- Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Thursday afternoon, then partly cloudy Thursday night.
- lows 42-44 cooling to 38 Thursday night highs 52-55.
- Mostly cloudy and a bit warmer Friday, partly cloudy Friday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Saturday and in the evening, a good (50%) chance of rain late at night,
- Mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday and Sunday night,
- Mostly cloudy and a bit cooler with a good (50%) chance of rain, then rain likely (70%) Monday afternoon.
- highs 58-62 cooling to 59 Monday lows 42-50 cooling to 58 Monday. (seasonal averages high 54 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with evening coastal showers likely (70%) and a slight (20%) chance of coastal showers late tonight while a (30%) chance of inland evening showers tonight (0.10 in. of rain possible),
- Cloudy with a slight (20%) chance of rain and slightly warmer Tuesday (under 0.10 in. of rain possible), rain and breezy (Wind: S 15-25 mph) Tuesday night (0.50 in. of rain possible),
- Mostly cloudy with rain and a bit warmer and breezy (Wind: SW 15-25 mph decreasing and shifting to W 10-15 mph in the afternoon) Wednesday, evening showers likely (70%), a good (50%) chance of showers late at night,
- Mostly cloudy with a slight (20%) chance of AM showers, becoming partly cloudy Thursday afternoon, then mostly cloudy late Thursday night.
- lows 45-37 highs 53-55.
- Mostly cloudy and a bit warmer Friday, mostly cloudy Friday night,
- Mostly cloudy with a slight (20%) chance of AM rain, a bit warmer with rain Saturday afternoon, mostly cloudy with rain at night,
- Mostly cloudy with rain likely (70%) Sunday and Sunday night,
- Then mostly cloudy and a bit cooler with rain likely (70%) Monday.
- highs 57-59 cooling back to 57 Monday lows 43-47. (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 patchy dense evening fog and a good (50%) chance of rain and snow showers and a slight (20%) chance of freezing rain, mostly cloudy with a slight (20%) chance of snow showers late tonight (0.25 in. of rain possible, 1-3 in. of snow possible, a trace of ice accumulation possible),
- A mix of clouds and sun with a slight (20%) chance of AM rain and snow, mostly cloudy and a bit cooler with rain and snow likely (70%) Tuesday afternoon, rain and freezing rain Tuesday night (0.25 in. of rain possible, 0.10 in. of ice accumulation possible),
- Mostly cloudy with a rain and snow Wednesday (snow possibly heavy at times), mostly cloudy with rain and snow showers at night (evening snow possibly heavy at times),
- A mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow showers Thursday, then partly cloudy Thursday night.
- snow level 3,500 ft. tonight, 3,500 ft. rising to 4,500 ft. Tuesday afternoon, 6,000 ft. Tuesday night, 4,500 ft. Wednesday, 3,500 ft. Wednesday night and Thursday, then 6,000 ft. Thursday night.
- lows 24-33 cooling to 26 Wednesday night highs 32-37 cooling to 35 Wednesday.
- A mix of clouds and sun in the AM, mostly cloudy and a bit warmer Friday, mostly cloudy with a (30%) chance of rain Friday night,
- A mix of clouds and sun with a good (50%) chance of AM rain, mostly cloudy and a bit warmer with a good (50%) chance of rain Saturday, mostly cloudy with rain likely (70%) at night,
- Mostly cloudy with rain Sunday, rain likely (70%) Sunday night,
- Then rain likely (70%) with a slight (20%) chance of snow Monday.
- free air freezing level 9,000 ft. Friday, snow level 5,500 ft. Friday night, 6,000 ft. Saturday, 7,500 ft. Saturday night through Sunday night, then 6,500 ft. Monday.
- highs 37-43 cooling to 42 Saturday warming to 43 Sunday lows 27-34.