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Here is this week’s weather quiz question. Let’s make this one local that relates to our current weather pattern. What is the greatest snow depth ever officially reported for Eugene? A pat on the back if you know the year in which it occurred. Please place your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one week of free personalized weather forecasts tailored to your needs. Good luck.
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The upper airflow is bringing much colder air toward us both aloft and at the surface. An arctic air mass is being pushed South by a strong jet stream (see airflow graphic above) and will move down behind a frontal system to our North. The area hills will be white and there will be a chance of snow in the valleys, but I don’t think it will be more than an inch in the Eugene-Springfield area, if that much. Another frontal system will push through from the west by Saturday bringing more rain with it.
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Advisories: A WINTER STORM WARNING IS IN EFFECT 10 AM TUESDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, AND THE KLAMATH BASIN. WINTER STORM WARNING IS IN EFFECT 10 AM TUESDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY. A FREEZE WARNING IS IN EFFECT FROM 9 AM TUESDAY UNTIIL 10 AM WEDNESDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FREEZE WATCH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE NORTH AND CENTRAL COAST RANGE OF OREGON, THE PORTLAND AREA, AND THE WESTERN COLUMBIA RIVER GORGE. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM TUESDAY FOR THE NORTH CASCADES FOOTHILLS AND THE FOOTHILLS OF LANE COUNTY AND THE UPPER HOOD RIVER VALLEY. A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM TUESDAY FOR THE NORTH CASCADES OF OREGON AND THE CASCADES OF LANE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM TUESDAY ABOVE 500 FT. FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL UNTIL 1 AM TUESDAY BELOW 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
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Here are your detailed forecasts. **
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Cloudy with rain changing to snow this evening, snow showers likely (60%) late tonight and colder (up to 1 in. of snow possible), a mix of clouds and sun and colder Tuesday, partly cloudy and colder Tuesday night, mostly cloudy with a slight (20%) chance of snow Wednesday, partly cloudy with a slight (20%) chance of evening rain (snow level 1,000 ft.), mostly cloudy Thursday (Thanksgiving Day), mostly cloudy at night with a slight (20%) chance of rain lows 24-17 warming to near 30 Wednesday night and 36 Thursday night, highs 33-45. Mostly cloudy with a good (50%) chance of rain Friday and Friday night, then rain likely (60%) Saturday and Saturday night, then mostly cloudy with a good (50%) chance of showers Sunday and Sunday night and likely (60%) Monday highs 44-47 lows 38-35. (seasonal averages highs 50 low 36)
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Forecast for the Umpqua Basin including, Roseburg: Cloudy with rain and snow tonight (snow level 1,500 ft. falling to 500 ft. late 1-2 in. of snow possible at lower elevations, 3-5 in. above 1,500 ft.), mostly cloudy Tuesday AM with a slight (20%) chance of snow, sunny in the afternoon, then partly cloudy Tuesday night through Wednesday night, patchy AM fog and freezing fog Thursday (Thanksgiving Day) then mostly cloudy in the afternoon and Thursday night lows 30-22-30-35 highs 33-42. Mostly cloudy with a good (50%) chance of rain and snow Friday AM, a (40%) chance of rain Friday afternoon, rain and snow likely (60%) Friday night, rain likely (60%) Saturday, rain and snow likely (60%) Saturday night and Sunday, then mostly cloudy with a good (50%) chance of rain and snow showers Sunday night and likely (60%) Monday highs 48-45 lows 36-30. (seasonal averages high 53 low 38)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with coastal rain this evening, then rain and snow late tonight, rain and snow inland, snow may be heavy at times this evening, (snow level 1,500 ft. falling to 500 ft. late tonight ( 1-2 in. of snow possible) , breezy tonight (wind: NW 15-25 mph), mostly cloudy with a slight (20%) chance of rain and snow Tuesday AM, mostly sunny in the afternoon, and partly cloudy Tuesday night and Wednesday AM patchy AM fog and freezing fog, mostly cloudy Wednesday afternoon, partly cloudy with fog late Wednesday night lows 33-27-32 highs 40-43. Patchy AM fog Thursday (Thanksgiving Day), then mostly cloudy Thursday night with a slight (20%) chance of rain, cloudy with a (60%) chance of rain Friday, rain likely (60%) Friday night and Saturday, rain and snow likely (60%) Saturday night, rain likely (60%) Sunday, and mostly cloudy with showers likely (60%) Sunday night and showers Monday highs from 47-50 lows 35-40. (seasonal averages high 55 lows 42).
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Forecast for the Cascades of Lane County: Mostly cloudy and colder with snow showers and breezy (wind: W 15-25 mph decreasing to W 5-15 late at night) tonight (6-12 in. of snow possible), a mix of clouds and sun with a slight (20%) chance of AM snow showers Tuesday, partly cloudy Tuesday night, a mix of clouds and sun Wednesday AM, mostly cloudy with a slight (20%) chance of snow in the afternoon and evening, partly cloudy Wednesday night, mostly cloudy Thursday (Thanksgiving Day), then a slight (20%) chance of rain and snow Thursday night snow level at the surface through Wednesday evening, then free air freezing level at the surface late Wednesday night, rising from 2,500 ft. to 4,000 ft. Thursday afternoon rising to 4,500 ft. Thursday night holding lows 12-6 warming to 16 Wednesday night and near 20 Thursday highs 14-33. Mostly cloudy with a good (50%) chance of rain and snow Friday, snow and rain likely (60%) Friday night, snow likely (60%) Saturday and Saturday night, snow showers likely (60%) Sunday, snow showers likely (60%) Sunday night and Monday snow level 3,500 ft. Friday and Friday night, 2,500 ft. Saturday, at the surface Saturday night and Sunday, and 2,500 ft. Sunday night and Monday highs 34-27-30-33 lows 22-25.
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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.