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A strong upper level area of low pressure (oval shape offshore) is sending moisture to the Pacific Northwest by. It will be moving South spreading moisture over us for the rest of the weekend, then a series of frontal systems (positions shown for Tuesday) will march through. Another storm system will be upon us by Friday. All of that means the wet weather will continue with a brief drying period .
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Advisories: NONE AT THIS TIME.
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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 showers today (0.25 in. of rain possible), showers likely (60%) this evening, showers late tonight (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers Monday through Tuesday evening, then a slight (20%) chance of showers Tuesday night highs 55-60 lows 42-39. Mostly cloudy Wednesday AM, a mix of sun and clouds with a slight (20%) chance of showers in the afternoon, partly cloudy Wednesday night, a mix of clouds and sun and warmer Thursday, partly cloudy Thursday night, partly cloudy with a slight (20%) chance of showers Friday, partly cloudy in the evening, then mostly cloudy with a (30%) chance of showers Friday night and Saturday highs 63-69 cooling to near 64 Saturday lows 40-45. (seasonal averages high 67 low 43)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with showers this AM, showers and a slight (20%) chance of thunderstorms this afternoon and evening, showers likely (60%) tonight, a (30%) chance of AM showers Monday (snow level 3,500 ft. in the AM), then a good (50%) chance of showers and a slight (20%) chance of thunderstorms Monday afternoon and evening, a good (50%) chance of showers late Monday night (snow level 3,500 ft. late), then showers likely (60%) with a slight (20%) chance of thunderstorms Tuesday and Tuesday night highs 53-62 lows 40-45. Mostly cloudy with a slight (20%) chance of showers Wednesday, just mostly cloudy Wednesday night through Thursday night, mostly cloudy with a slight (20%) chance of showers Friday and Friday night, then mostly cloudy with a slight (20%) chance of showers Saturday highs 63-73 cooling to 65 Friday lows 45-49. (seasonal averages high 71 low 45)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with showers today, showers likely (60%) tonight, a (40%) chance of coastal showers Monday, a (40%) chance of AM showers inland and a (40%) chance of showers and a slight (20%) chance of thunderstorms Monday afternoon and evening, a good (50%) chance of showers late Monday night, then mostly cloudy with showers likely (60%) Tuesday and Tuesday night highs 52-56 lows 44-42. Mostly cloudy with a slight (20%) chance of showers Wednesday, just mostly cloudy Wednesday night through Thursday night, mostly cloudy with a slight (20%) chance of showers Friday and Friday night, then a (30%) chance of showers Saturday highs 56-60 lows 44-48. (seasonal averages high 61 low 47).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow showers likely (60%) this afternoon (2 in. of snow possible), rain and snow showers and colder tonight (1-3 in. of snow possible, 0.25 in. of rain possible), rain and snow showers likely (60%) Monday (1 in. of snow possible, under 0.10 in. of rain possible), then a (40%) chance of rain and snow showers Monday night through Tuesday night snow level 3,500 ft. today, falling to 3,000 ft. late tonight, 3,000 ft. rising to 3,500 ft. Monday afternoon, 4,000 ft. falling to 3,500 ft. late Monday night, 4,000 ft. Tuesday and Tuesday night highs 38-44 lows 25-30. Mostly cloudy with a good (50%) chance of rain and snow showers Tuesday, rain and snow showers likely (60%) Tuesday evening, a (40%) chance of rain and snow showers late at night, mostly cloudy with a (40%) chance of rain and snow showers Wednesday, then mostly cloudy with a slight (20%) chance of showers Wednesday evening, a mix of clouds and sun Thursday, partly cloudy in the evening, mostly cloudy late Thursday night, a mix of clouds and sun Friday AM, mostly cloudy with a slight (20%) chance of showers Friday night, then a (40%) chance of showers Saturday snow level 4 ,000 ft. Tuesday and Tuesday night, 4,500 ft. rising to 5,500 ft. Wednesday afternoon, 6,000 ft. Wednesday night, free air freezing level 9.000 ft. Thursday and Thursday night, snow level 7,000 ft. Friday, then 6,000 ft. Friday night and Saturday highs 48-60 cooling to 55 Saturday lows 27-35.
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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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