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 colder Arctic air coming through Canada into the Northwest. The graphics for days 1-3 show the surface storm moving through Oregon Thursday. The graphics for days 3-7 show a frontal system that will slide along the Pacific Northwest coast Saturday. Then there’s the next one approaching the Oregon coast next Wednesday.
Note: With the moisture remaining on the roadways and the cold temperatures you need to watch out for slippery road conditions and this next storm will give us a chance again for a real snowfall down to the valley floor so please drive extra carefully.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 28 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 16 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 WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 PM THIS EVENING UNTIL 6 AM THURSDAY FOR THE COAST RANGE OF NORTHWEST OREGON AND THE NORTHERN OREGON CASCADE FOOTHILLS.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM THURSDAY FOR THE CENTRAL COAST RANGE OF WESTERN OREGON AND THE CASCADES IN LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 6 AM THURSDAY FOR THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, AND THE WESTERN COLUMBIA RIVER GORGE.
- A FREEZE WATCH IS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AM FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 1 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL NOON THURSDAY FOR CENTRAL OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 10 AM THURSDAY FOR HARNEY COUNTY AND MALHEUR 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 rain and snow tonight (0.25 in. of rain possible, 2 in. of snow possible above 500 ft.),
- A mix of clouds and sun with AM snow likely (70%), a slight (20%) chance of snow showers and a bit cooler Thursday afternoon (0.10 in. of rain possible, little or now snow accumulation possible), just partly cloudy and cold at night,
- A mix of clouds and sun Friday AM, mostly cloudy with a good (50%) chance of rain and snow and a bit warmer Friday afternoon (under 0.10 in. of rain possible, 1 in. of snow possible above 500 ft.), rain likely (70%) Friday night (0.10 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Saturday, then cloudy with a good (50%) chance of showers at night.
- lows 32-22 warming to 37 Friday night highs 38-44.
- Rain likely (70%) and a bit warmer Sunday, rain Sunday night,
- Mostly cloudy with a showers likely (70%) and a bit cooler Monday, a good (50%) chance of showers at night,
- A bit warmer with a good (50%) chance of showers Tuesday, cloudy with a slight (20%) chance of showers Tuesday night,
- Then mostly cloudy with a (30%) chance of showers Wednesday.
- highs 45-43 warming back to 45 Tuesday lows 36-33. (seasonal averages high 52 low 35)
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Forecast for Roseburg:
- Mostly cloudy with a slight (20%) chance of evening rain and snow showers, snow late tonight (0.10 in. of rain possible, 1-2 in. of snow possible lower elevations and 2-3 in. of snow possible above 1,500 ft.), evening snow level 600 ft.),
- Mostly cloudy with AM rain and snow likely (70%) Thursday, a good (50%) chance of rain and snow showers and a bit cooler in the afternoon (0.10 in. of rain possible, 1 in. of snow possible lower elevations and 1-2 of snow possible above 1,500 ft., snow level 200 ft.), partly cloudy with evening snow showers, becoming mostly cloudy late Thursday night,
- Partly cloudy Friday AM, mostly cloudy with a slight (20%) chance of snow and a bit warmer in the afternoon, mostly cloudy with a (40%) chance of rain and snow Friday night (0.10 in. of rain possible),
- Cloudy with AM rain and snow Saturday, mostly cloudy and a bit warmer with a good (50%) chance of rain and snow showers at night.
- lows 32-23 warming to 38 Monday night highs 42-45.
- Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Sunday AM, showers likely (70%) in the afternoon, evening rain, rain and snow late Sunday night,
- Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Monday, a (40%) chance of rain and snow showers at night,
- Then mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Tuesday through Wednesday.
- highs 46-48 lows 38-35. (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 a slight (20%) chance of evening rain and snow, coastal rain late tonight while inland rain and snow late tonight (0.25 in. of rain possible, 1-2 in. of snow possible, 1-2 in. of snow possible, snow level 400 ft.),
- Mostly cloudy with AM coastal showers likely (60%) and a slight (20%) chance of coastal rain and snow showers Thursday afternoon while AM inland rain and snow showers likely (60%) with a good (50%) chance of inland rain and snow showers in the afternoon (0.10 in. of rain possible, 1 in. of snow possible, snow level 800 ft.), mostly clear late at night,
- Partly cloudy Friday AM, mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow in the afternoon (snow level 500 ft.), mostly cloudy with good (50%) chance of coastal rain at night while a (40%) chance of inland evening rain and snow with a (30%) chance of rain Friday night (0.10 in. of rain possible, evening snow level 2,000 ft.),
- Cloudy and a bit warmer with a good (50%) chance of rain Saturday, then a good (50%) chance of showers at night.
- lows 35-29 warming to 42 Saturday night highs 45-48.
- Mostly cloudy and a bit warmer with showers likely (70%) Sunday, rain Sunday night,
- Mostly cloudy with showers in the AM, rain and snow showers and a bit cooler Monday afternoon, mostly cloudy with a (30%) chance of rain and snow showers Monday night,
- Then mostly cloudy and bit warmer with a (30%) chance of rain and snow showers Tuesday through Wednesday.
- highs 49-47 warming back to 49 Wednesday lows 42-38. (seasonal averages high 53 low 40)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with snow tonight (2-4 in. of snow possible),
- Mostly cloudy with AM snow, a good (50%) chance of snow showers Thursday afternoon (1-2 in. of snow possible), partly cloudy with a (30%) chance of evening snow showers, partly cloudy and very cold late at night,
- Partly cloudy in the AM, mostly cloudy with a (40%) chance of snow and a bit warmer Friday afternoon (1 in. of snow possible), becoming cloudy with a good (50%) chance of evening snow, snow likely (70%) and cold late Friday night (2-4 in. of snow possible),
- Mostly cloudy with snow Saturday (3-6 in. of snow possible), then snow showers likely (70%) at night.
- snow level at the surface tonight and Thursday, free air freezing level at the surface late Thursday night and Friday AM, then snow level at the surface Friday night through Saturday night.
- lows 17-7 warming to 22 Saturday night highs 19-27.
- Mostly cloudy with snow likely (70%) and a bit warmer Sunday, snow Sunday night,
- Mostly cloudy and a bit warmer with snow showers likely (70%) Monday, a good (50%) chance of snow showers at night,
- Mostly cloudy with a (40%) chance of snow showers and a bit warmer Tuesday and Tuesday night,
- Then a mix of clouds and sun with a slight (20%) chance of snow showers Wednesday.
- snow level at the surface Sunday, 2,500 ft. Sunday night, then at the surface Monday through Wednesday.
- highs 28-26 warming back to 28 Wednesday lows 22-17.
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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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