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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 PM THIS EVENING UNTIL 10 AM MONDAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTH CENTRAL AND SOUTH OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN AND WESTERN LAKE COUNTY.
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A high pressure ridge (“Arch” shape on yellow line) has been dominating our weather pattern, but some weak storms have been sneaking in under it (see shaded area bulging into California and Oregon). A frontal system pushed through dragging rain with it. A trough of low pressure will set up offshore and even more frontal systems will keep the showers around through next week.
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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: Mostly cloudy with rain (0.25 in. of rain possible) tonight, cloudy with showers likely (60%) Monday AM, a good (50%) chance of showers (0.10 in. of rain possible) Monday afternoon, mostly cloudy with a slight (20%) chance of showers Monday evening, mostly cloudy at night with patchy fog, mostly cloudy with patchy AM fog and a slight (20%) chance of AM showers, showers (under 0.10 in. of rain possible) likely (60%) Tuesday afternoon, mostly cloudy with a (40%) chance of showers Tuesday evening, then partly cloudy with patchy fog late at night and Wednesday AM, partly cloudy in the afternoon, partly cloudy with a slight (20%) chance of rain Wednesday night lows 36-28 warming to 33 Wednesday night highs 45-50. Cloudy with a good (50%) chance of rain Thursday, a (40%) chance of rain Thursday night, mostly cloudy with a good (50%) chance of rain Friday, rain likely (60%) Friday night and Saturday, then mostly cloudy with a good (50%) chance of rain Saturday night and Sunday highs 52-49 lows 37-35. (seasonal averages high 51 low 35)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain and snow (snow level 2,000 ft., 1-2 in. of snow possible, 0.25 in. of rain possible) tonight, mostly cloudy with rain and snow showers Monday AM, a good (50%) chance of rain and snow showers in the afternoon (snow level 1,500 ft. rising to 2,000 ft. in the afternoon, 1 in. of snow possible, 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of rain and snow showers Monday evening (snow level 2,000 ft.), just mostly cloudy at night, mostly cloudy with a good (50%) chance of rain and snow Tuesday afternoon (snow level 2,500 ft.), a (30%) chance of rain and snow showers Tuesday night, mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday AM, mostly cloudy in the afternoon, then mostly cloudy with a slight (20%) chance of rain Wednesday night lows 36-30 warming to 33 Wednesday night highs 46-53. Mostly cloudy with a (40%) chance of rain Thursday, cloudy with a (40%) chance of rain Thursday night, mostly cloudy with a good (50%) chance of rain Friday and Friday night, mostly cloudy with rain likely (60%) Saturday, then mostly cloudy with a good (50%) chance of rain Saturday night and Sunday highs 55-52 lows 35-38. (seasonal averages high 53 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain (snow level 2,000 ft., 0.50 in. of rain possible) tonight, coastal showers with inland rain and snow showers Monday AM, a (40%) chance of showers in the afternoon (snow level 2,000 ft., 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Monday evening (snow level 2,000 ft.), mostly cloudy at night, mostly cloudy with a slight (20%) chance of rain Tuesday AM (snow level 1,000 ft., 0.10 in. of rain possible), rain likely (60%) in the afternoon (0.10 in. of rain possible), a (40%) chance of rain Tuesday night (0.10 in. of rain possible), a slight (20%) chance of showers Wednesday AM, mostly cloudy in the afternoon, then mostly cloudy with a slight (20%) chance of showers Wednesday night lows 40-38 highs 48-53. Mostly cloudy with a (40%) chance of rain Thursday, cloudy with a good (50%) chance of rain Thursday night, mostly cloudy with rain likely (60%) Friday and Friday night, rain likely (60%) Saturday, then cloudy with a good (50%) chance of rain Saturday night and Sunday highs 56-50 warming to 55 Sunday lows near 42. (seasonal averages high 53 low 40).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain or snow this evening and snow (2-5 in. of snow possible, 0.25 in. of rain possible) late tonight, snow showers (2 in. of snow possible, 0.25 in. of rain possible) Monday, mostly cloudy with a (40%) chance of snow showers in the evening, a slight (20%) chance of rain or snow late at night, mostly cloudy with a slight (20%) chance of AM snow showers, a good (50%) chance of snow showers Tuesday afternoon and Tuesday night, mostly cloudy with a slight (20%) chance of snow showers Wednesday AM, a mix of clouds and sun in the afternoon, then partly cloudy Wednesday night snow level 4,000 ft. falling to 3,000 ft. late tonight, 2,500 ft. Monday, at the surface Monday night through Wednesday, then free air freezing level 6,500 ft. Wednesday night lows 27-20 warming to 26 Wednesday night highs 32-38. Cloudy with (40%) chance of rain or snow Thursday, a (40%) chance of rain Thursday night, mostly cloudy with a good (50%) chance of rain and snow Friday, rain or snow likely (60%) Friday night, snow likely (60%) Saturday, then mostly cloudy with a good (50%) chance of snow Saturday night and Sunday snow level 5,000 ft. Thursday, 6,000 ft. Thursday night, 5,500 ft. Friday and Friday night, 4,000 ft. Saturday, 3,000 ft. Saturday, then at the surface Sunday highs 42-35 lows 28-24.
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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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