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 for the last time. What is “Deep Percolation Loss?” Here is the correct answer. Deep Percolation Loss in hydrologic terms, is water that percolates downward through the soil beyond the reach of plant roots. I’ll have a new weekly weather quiz question for you starting Monday. 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 front that moved through today and the next one on the way. The graphics for days 3-7 show a frontal system moving into the Pacific Northwest Thursday.
Note: It looks like Willamette Pass Ski is still not operating, but Hoodoo is open 9 AM- 4 PM. Mt. Ashland is open and report all lifts are operating. They will also be open 9 AM until 4 pm March 24th through April 1st for Spring break. Check their websites for details.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 7 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 4 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: GREEN – Burning is Allowed.
*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 WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM THIS EVENING FOR THE NORTH OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY BELOW 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM MONDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, THE KLAMATH BASIN, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN LAKE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM MONDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- 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 evening showers, rain and snow showers late tonight (0.10 in.of rain possible, little or no snow accumulation expected, snow level 800-1,000 ft.),
- A (40%) chance of snow showers and a slight (20%) chance of showers Monday AM, a (40%) chance of showers and a bit cooler Monday afternoon (0.50 in. of rain possible, no snow accumulation expected, snow level 800-1,000 ft.), becoming mostly clear Monday night,
- Cloudy with slight (20%) chance of AM rain and snow, a good (50%) chance of snow showers Tuesday afternoon (under 0.10 in. of rain possible, little or no snow accumulation expected) and at night,
- Then mostly cloudy and a bit warmer with rain Wednesday and at night.
- lows 32-29 warming to 37 Wednesday night highs 43-46.
- Mostly cloudy and a bit cooler with showers likely (70%) Thursday and Thursday night,
- A good (50%) chance rain and snow showers Friday (snow level 1,000 ft. Friday night) through Saturday (a bit warmer), mostly cloudy with a (40%) chance of showers at night,
- Then mostly cloudy and a bit warmer with a (30%) chance of showers Sunday.
- highs 46-44 warming back to 46 Saturday lows 37-33 warming to 35 Saturday night. (seasonal averages high 53 low 35)
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Forecast for Roseburg:
- Mostly cloudy with evening rain and snow, rain and snow showers late this evening and tonight (0.25 in. of rain possible, 1 in. of snow possible lower elevations and 3-4 in. of snow possible above 1,500 ft., snow level 1,000 ft. falling to 100 ft. late at night),
- Mostly cloudy and a bit cooler with a (30%) chance of rain and snow showers Monday (under 0.10 in. of rain possible, snow level 100 ft. rising to 1,000 ft. in the afternoon, becoming partly cloudy in the evening, mostly clear late at night,
- A slight (20%) chance of AM snow showers, a bit warmer with a slight (20%) chance of rain and snow showers Tuesday afternoon, cloudy with a (40%) chance of rain and snow showers late Tuesday night (under 0.10 in. of rain possible, snow level 2,500 ft.),
- Mostly cloudy with AM rain and snow showers likely (70%), rain Wednesday afternoon and evening, then rain and snow late at night.
- lows 32-30 warming to 40 Tuesday night cooling to 37 Wednesday night highs 45-47.
- Mostly cloudy with rain and snow showers and a bit cooler Thursday, rain and snow showers likely (70%) Thursday night and Friday, a good (50%) chance of rain and snow showers Friday night,
- Then mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Saturday through Sunday.
- highs 44-48 lows 33-35. (seasonal averages high 55 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms late then changing to showers tonight while inland evening with inland rain and snow showers developing later tonight (0.25 in. of rain possible, 1 in. of snow possible, snow level 900 ft.),
- Mostly cloudy with a (30%) chance of coastal showers while a (40%) chance of inland showers Monday (under 0.10 in. of rain possible, snow level 700 ft. rising to 1,500 ft. in the afternoon), becoming partly cloudy in the evening, mostly clear late Monday night,
- A slight (20%) chance of coastal showers Tuesday while a slight (20%) chance of inland rain and snow showers Tuesday (snow level 200 ft. rising to 2,000 ft. in the afternoon), cloudy with a (30%) chance of showers at night (under 0.10 in. of rain possible),
- Showers likely (70%) Wednesday AM, then rain in the afternoon and at night.
- lows 35-42 cooling to 40 Wednesday night highs near 48.
- Mostly cloudy with AM showers, rain and snow showers and a bit cooler Thursday afternoon, rain and snow showers likely (70%) Thursday night and Friday (a bit warmer), mostly cloudy with a (40%) chance of rain and snow showers and a bit warmer Friday night and Saturday, a (40%) chance of showers at night,
- A (40%) chance of AM rain and snow showers, then a (30%) of showers Sunday afternoon.
- highs 44-49 lows 35-37. (seasonal averages high 53 low 41)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with evening snow, snow showers and cold late tonight (4-8 in. of snow possible),
- A good (50%) chance of snow and a bit cooler Monday (little or no snow accumulation expected), becoming mostly clear and cold Monday night,
- Mostly cloudy with a slight (20%) chance of snow showers and a bit warmer Tuesday, snow showers likely (70%) at night (1 in. of snow possible),
- Mostly cloudy with snow and a bit warmer Wednesday (1-3 in.of snow possible), then rain and snow Wednesday night.
- snow level at the surface tonight and Monday, free air freezing level at the surface Monday night and Tuesday AM, snow level at the surface Tuesday afternoon, snow level 2,500 ft. Tuesday night and Wednesday, then 3,500 ft. Wednesday night,
- lows 16-12 warming to 24 Tuesday night and Wednesday night highs 26-30.
- Mostly cloudy and a bit cooler with snow showers Thursday, snow showers likely (70%) and a bit cooler Thursday night and Friday, cloudy with a good (50%) chance of snow showers and at night and Saturday (a bit warmer), a (40%) chance of snow showers Saturday night,
- Then mostly cloudy and a bit warmer with a (30%) chance of snow showers Sunday.
- snow level at the surface Thursday through Sunday.
- highs 30-28 warming back to 30 Saturday lows 24-20.
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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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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