Check out my latest Eugene Daily News Weather Or Not column: Not Much Winter Weather Until Now. What’s going on?
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Here is my weekly weather quiz question. What is “Deep Percolation Loss?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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Another Upper Level Low Pressure Trough (Shaded “U” shape with arrows) slides slowly eastward continuing the flow of cold Arctic air coming through Canada into the Northwest. The graphics for days 1-3 show the next front well offshore by Friday AM. The graphics for days 3-7 show a frontal system that will slide into the Pacific Northwest Sunday. Then there’s the next one approaching the Oregon coast next Wednesday morning.
Note: Snow finally fell and stuck to the roadways down to the valley floor today so please drive extra carefully because the moisture that is left on the roads overnight will freeze producing some icy conditions. (2 in.of snow reported today at the Eugene Airport, 0.75 in. to 1 in. of snow at my house in the South Hills, 3-4 in. of snow reported at the north end of Eugene, and about 4 in. of snow in Marcola.
It looks like Willamette Pass Ski is still not operating, but Hoodoo and Mt Ashland are open for limited skiing. (Hoodoo open 9 AM-4 PM through April over spring break.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 20 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Home Wood Heating Advisory:
(Posted Daily)
Eugene-Springfield: GREEN – Burning is Allowed.
Oakridge: YELLOW – Caution is advised.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Advisories:
- A FREEZE WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 AM FRIDAY AM FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM FRIDAY UNTIL 4 PM SATURDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
- A WINTER STORM WARNING IS IN EFFECT FROM 10 PM FRIDAY UNTIL 4 PM SATURDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- 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 clear with patchy freezing fog and cold tonight,
- Partly cloudy with patchy freezing fog Friday AM, becoming cloudy with a good (50%) chance of rain and snow and a bit warmer in the afternoon (under 0.10 in. of rain possible, little or no new snow accumulation expected), rain likely (70%) and a bit warmer Friday night (0.25 in. of rain possible),
- Mostly cloudy with showers likely (70%) and a bit warmer Saturday, a good (50%) chance of evening showers, a good (50%) chance of rain at night,
- Mostly cloudy with rain and a bit cooler Sunday and Sunday night (snow level 1,000 ft.).
- lows 22-37 cooling to 34 Sunday night highs 42-45.
- Rain and snow showers likely (70%) and a bit cooler Monday (snow level 1,000 ft.), a good (50%) chance of showers Monday night,
- Mostly cloudy and a bit warmer with a (40%) chance of showers Tuesday, a good (50%) chance of rain at night,
- Cloudy and a bit warmer with a (30%) chance of rain Wednesday and Wednesday night,
- Then cloudy with a good (50%) chance showers Thursday.
- highs 43-46 lows 32-35. (seasonal averages high 52 low 35)
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Forecast for Roseburg:
- Partly cloudy with a slight (20%) chance of evening snow showers, becoming mostly clear late tonight,
- Partly cloudy Friday AM, mostly cloudy with a slight (20%) chance of snow and a bit warmer in the afternoon, cloudy with a (40%) chance of evening rain and snow, rain and snow likely (70%) late Friday night (0.10 in. of rain possible, snow level 700 ft. falling to 200 ft. late),
- Mostly cloudy with rain and snow likely (70%) and a bit warmer Saturday (snow level 400 ft. rising to 1,500 ft. in the afternoon), cloudy with a (30%) chance of rain and snow showers at night,
- Mostly cloudy with AM rain and snow likely (70%), and a bit warmer with rain and snow Sunday afternoon and Sunday night.
- lows 23-37 highs near 45.
- Mostly cloudy with rain and snow showers Monday, rain and snow showers likely (70%) at night,
- A bit warmer with a (30%) chance of rain and snow showers and a bit cooler Tuesday, a good (50%) chance of rain and snow Tuesday night,
- Mostly cloudy and a bit cooler with rain and snow likely (70%) Wednesday, a good (50%) chance of rain and snow at night,
- Then mostly cloudy and a bit warmer with rain and snow showers likely (60%) Thursday.
- highs 45-43 warming to 47 Thursday lows near 32. (seasonal averages high 55 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy at the shore this evening and mostly clear late tonight while partly cloudy with a slight (20%) chance of evening inland showers and mostly clear inland late tonight,
- Partly cloudy at the shore Friday AM and mostly cloudy and a bit warmer in the afternoon while AM sun inland and mostly cloudy and a bit warmer with a slight (20%) chance of inland snow in the afternoon, cloudy with a good (50%) chance of coastal rain at night while a good (50%) chance of evening inland rain and snow with rain and snow likely (70%) late Friday night (0.10 in. of rain possible (snow level 1,500 ft. rising to 2,000 ft.),
- Cloudy with AM coastal rain likely (70%) and a good (50%) chance coastal rain and a bit warmer Saturday afternoon while a good (50%) chance of inland AM rain and a (40%) chance of inland rain and snow Saturday afternoon (snow level 2,000 ft. falling to 1,500 ft. late afternoon), cloudy with a (30%) chance of coastal showers while a (30%) chance of inland rain and snow showers at night (snow level 1,500 ft. rising to 2,000 ft. late at night),
- Mostly cloudy with AM rain and snow likely (70%), rain Sunday afternoon and evening, rain and snow late Sunday night.
- lows 28-42 highs near 46.
- Mostly cloudy with rain and snow showers Monday, rain and snow showers likely (70%) Monday night,
- A (30%) chance of AM rain and snow showers Tuesday, a (30%) chance of showers in the afternoon, a good (50%) chance of rain Tuesday night,
- Mostly cloudy with rain likely (70%) Wednesday, a good (50%) chance of evening rain, a (40%) chance of rain and snow late at night,
- Then rain and snow showers likely (70%) Thursday.
- highs near 47 lows 35-32. (seasonal averages high 53 low 40)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with a (30%) chance of evening snow showers (little or no snow accumulation expected), partly cloudy and very cold late tonight,
- Partly cloudy Friday AM, mostly cloudy with a slight (20%) chance of snow and a bit warmer in the afternoon, becoming cloudy with a good (50%) chance of evening snow, snow and cold late Friday night (2-5 in. of snow possible),
- Mostly cloudy with snow showers Saturday (3-6 in. of snow possible), cloudy with evening snow showers likely (70%), a good (50%) chance of snow late at night (1-3 in. of snow possible),
- Mostly cloudy with snow and a bit warmer Sunday (6-10 in. of snow possible), then snow Sunday night.
- free air freezing level at the surface late tonight and Friday AM, snow level at the surface Friday night through Sunday night.
- lows 5-24 cooling to 20 Friday night highs 27-29.
- Mostly cloudy with snow showers and a bit cooler Monday, a good (50%) chance of snow showers Monday night,
- Mostly cloudy with a slight (20%) chance of snow showers and a bit warmer Tuesday, a good (50%) chance of snow at night,
- Snow likely (70%) and a bit warmer Wednesday, cloudy with a good (50%) chance of snow Wednesday night,
- Then snow showers likely (70%) Thursday.
- snow level at the surface Monday through Tuesday night, snow level 2,500 ft. Wednesday, then at the surface Wednesday night and Thursday.
- highs 26-30 lows 15-22.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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