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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An 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. Add that in the moisture that will be moving in and there’s the chance of some more snow. This time it might actually stick on the ground in the valley. The graphics for days 1-3 show the next frontal system that will be offshore Wednesday. The graphics for days 3-7 show a frontal system that will slide along the Pacific Northwest coast Sunday night through Monday.
Note: With the moisture remaining on the roadways and the cold temperatures you need to watch out for slippery road conditions. This storm most likely will give us 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 11 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 15 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 10 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 WEATHER ADVISORY IS IN EFFECT UNTIL 2 AM WEDNESDAY FOR THE NORTH OREGON COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 6 PM THIS EVENING UNTIL 7 AM WEDNESDAY FOR THE CENTRAL OREGON COAST.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM WEDNESDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE NORTHERN OREGON CASCADE FOOTHILLS,
- A WINTER STORM WARNING IS IN EFFECT FROM 1 PM THIS AFTERNOON UNTIL 7 AM WEDNESDAY FOR THE CENTRAL COAST RANGE OF WESTERN OREGON,
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 2 PM THIS AFTERNOON UNTIL 4 AM WEDNESDAY FOR THE CENTRAL WILLAMETTE VALLEY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM THIS AFTERNOON UNTIL 7 AM WEDNESDAY FOR THE SOUTH WILLAMETTE VALLEY, THE CASCADE FOOTHILLS IN LANE COUNTY, .
- A WINTER STORM WARNING IS IN EFFECT UNTIL 7 AM WEDNESDAY FOR THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE NORTHERN OREGON CASCADES, AND THE UPPER HOOD RIVER VALLEY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM THIS EVENING UNTIL 10 AM WEDNESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON 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 snow developing this afternoon (under 0.10 in. of rain possible, 1 in. of snow possible), snow tonight (under 0.10 in. of rain possible, 1-2 in. of snow possible),
- A mix of clouds and sun Wednesday, mostly cloudy with a slight (20%) chance of evening rain and snow, a good (20%) chance of snow late Wednesday night,
- Mostly cloudy with a (40%) chance of AM snow showers, a good (50%) chance of rain and snow showers Thursday afternoon, then just partly cloudy at night.
- highs 38-42 lows 28-25.
- A mix of clouds and sun with a (30%) chance of rain and snow Friday, mostly cloudy with a good (50%) chance of rain Friday night,
- Mostly cloudy and a bit warmer with rain likely (70%) Saturday, a good (50%) chance of rain at night,
- Mostly cloudy with a good (50%) chance of rain and snow and a bit warmer Sunday, rain likely (70%) Sunday night,
- Then cloudy with a good (50%) chance of rain Monday.
- highs 42-45 lows 33-36. (seasonal averages high 52 low 35)
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Forecast for Roseburg:
- Mostly cloudy and a bit warmer with a (30%) chance of rain and snow this afternoon (snow level 200 ft.), cloudy with evening rain and snow likely (70%), rain and snow late tonight (0.10 in. of rain possible, 1-2 in. of snow possible, snow level 1,500 ft. falling to 600 ft. late),
- Mostly cloudy with a (30%) chance of AM snow, a slight (20%) chance of rain and snow showers and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible, snow level 900 ft.), a slight (20%) chance of rain and snow showers at night (under 0.10 in. of rain possible, snow level 800 ft. falling to 200 ft. late at night),
- Mostly cloudy with a good (50%) chance of rain and snow Thursday (snow level 100 ft. rising to 700 ft. in the afternoon), partly cloudy with a slight (20%) chance of rain and snow Thursday night.
- highs 40-44 cooling to 42 Thursday lows 32-26.
- Partly cloudy with a slight (20%) chance of rain and snow showers Friday, mostly cloudy with a (30%) chance of rain and snow Friday night,
- Cloudy and a bit warmer with a good (50%) chance of rain and snow Saturday through Sunday, rain and snow likely (60%) Sunday night,
- Then cloudy with a (30%) chance of rain and snow Monday,
- highs 46-43 warming to 50 Monday lows 32-36. (seasonal averages high 54 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy and a bit warmer with a good (50%) chance of coastal rain and snow this afternoon while a (40%) chance of inland rain and snow and a bit warmer this afternoon (under 0.10 in. of rain possible, afternoon snow level 500 ft.), coastal rain likely (70%) tonight while a good (50%) chance of inland evening rain and snow with inland rain and snow late tonight (0.25 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. late),
- Mostly cloudy with a slight (20%) chance of AM rain and snow, a slight (20%) chance of rain and snow showers and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible, snow level 900 ft.), a slight (20%) chance of rain and snow showers Wednesday night (under 0.10 in. of rain possible, snow level 600 ft.),
- Mostly cloudy with a good (50%) chance of rain and snow Thursday (snow level 700 ft.), partly cloudy at night.
- highs near 46 lows 34-32.
- Partly cloudy with a slight (20%) chance of rain and snow showers Friday, mostly cloudy with a (40%) chance of rain and snow Friday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Saturday and at night,
- Mostly cloudy with a (40%) chance of rain and snow Sunday, rain likely (60%) Sunday night,
- Then mostly cloudy with rain and snow likely (60%) Monday.
- highs near 48 lows near 40. (seasonal averages high 53 low 40)
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Forecast for the Cascades in Lane County:
- Mostly cloudy and a bit warmer with snow likely (70%) this afternoon (1 in. of snow possible), snow and cold tonight (2-4 in. of snow possible),
- Mostly cloudy with a (40%) chance of AM snow showers, a bit warmer with a slight (20%) chance of snow showers Wednesday afternoon (1 in. of snow possible), a (40%) of snow Wednesday night (1 in. of snow possible),
- Mostly cloudy with AM snow showers likely (70%), a bit warmer with good (50%) chance of snow showers Thursday afternoon (1-2 in. of snow possible), partly cloudy with a slight (20%) chance of snow showers and very cold at night.
- snow level at the surface this afternoon through Thursday night.
- highs near 26 lows 18-11.
- A mix of clouds and sun with a slight (20%) chance of snow and a bit warmer Friday, becoming mostly cloudy with a good (50%) chance of snow Friday night,
- Mostly cloudy with snow likely (70%) Saturday and at night,
- A good (50%) chance of snow Sunday, mostly cloudy with snow likely (70%) Sunday night,
- Then cloudy with a good (50%) chance of snow Monday.
- snow level at the surface Friday through Sunday, then 2,500 ft. Sunday night and Monday.
- highs 27-32 lows 17-22.
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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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