The jet stream shows a high pressure ridge (“arch” shape) that is building into the Pacific Northwest and has warmed us up, so it feels more like Spring. A weak cold front is dissipating as it moves South and behind it our showers will stop as there will be a break on Friday. The next frontal system (position shown Sunday) will push in on its way to the Pacific Northwest Friday night and early Saturday.

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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 a slight (20%) chance of evening showers, a mix of clouds and sun with a slight (20%) chance of rain late in the afternoon, a (40%) chance of rain Friday evening, rain late Friday night (0.25 in. of rain possible), occasional showers (0.25 in. of rain possible) and cooler Saturday, a (40%) chance of evening showers, a (40%) chance of showers late Saturday night (0.10 in. of rain possible), partly cloudy with a slight (20%) chance of showers Sunday, then mostly cloudy with a slight (20%) chance of showers Sunday night lows 46-37 highs 67-53. Mostly cloudy with a slight (20%) chance of showers Monday, cloudy with a (40%) chance of rain Monday night, mostly cloudy with a good (50%) chance of showers Tuesday, and a (40%) chance of showers Tuesday night through Wednesday night, then partly cloudy with a (30%) chance of showers Thursday highs 59-54 lows 44-40. (seasonal  averages high 58 low 38)

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Forecast for the Umpqua Basin including, Roseburg: Partly cloudy this evening, mostly cloudy with patchy fog late tonight and Friday AM, mostly cloudy Friday, a (30%) chance of evening showers, rain late Friday night, rain and snow Saturday AM, rain and snow showers in the afternoon (snow level 2,000 ft. falling to 1,500 ft), rain and snow showers likely (60%) in the evening, a good (50%) chance of rain and snow showers late Saturday night (snow level 1,500 ft.),  mostly cloudy with a slight (20%) chance of showers Sunday, and just mostly cloudy Sunday night lows 47-40 highs 73-50. Cloudy with a slight (20%) chance of showers Monday,  cloudy with a good (50%) chance of rain Monday night through Tuesday night, mostly cloudy with a (40%) chance of rain Wednesday, then a (40%) chance of showers Wednesday night and Thursday highs near 58 lows 45-40. (seasonal averages high 62 low 39)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy tonight with patchy fog late at night and early Friday AM, mostly cloudy Friday afternoon, a (30%) chance of evening showers, rain late Friday night and Saturday AM, showers likely (60%) Saturday afternoon (snow level 1,500 ft. in the afternoon), a good (50%) chance of showers inland (snow level 1,500 ft.) Saturday night, just mostly cloudy Sunday and Sunday night lows 46-39 highs 60-52. Cloudy with a slight (20%) chance of rain Monday, a good (50%) chance of rain Monday night through Tuesday night, mostly cloudy with a (40%) chance of rain Wednesday, then a (40%) chance of showers Wednesday night and Thursday highs 53-57 lows 46-42. (seasonal averages high 56 low 42).

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Forecast for the Cascades of Lane County:  Mostly cloudy with (30%) chance of showers this evening, a slight (20%) chance of showers late tonight (0.10 in. of rain possible), a mix of clouds and sun Friday with a  slight (20%) chance of evening rain, rain and snow likely (60%) late Friday night, snow showers and colder Saturday and Saturday evening, then a (40%) chance of snow showers late Saturday night,  partly cloudy with a (20%) chance of snow showers Sunday, then mostly cloudy with a slight (20%) chance of rain and snow showers Sunday night snow level 8,000 ft. tonight, 7,000 ft. Friday, 6,000 ft. falling to 4,000 ft. late Friday night, 2,500 ft. Saturday AM through Sunday, then rising to 4,000 ft. Sunday night lows 34-24 rising to 29 Sunday night highs 60-35. Mostly cloudy with a slight (20%) chance of showers Monday, a good (50%) chance of rain Monday night, rain likely (60%) Tuesday,  a good (50%) chance of showers Tuesday night, then a good (50%) chance of rain and snow showers Wednesday through Thursday snow level 5,500 ft. Monday, rising to 6,500 ft. Monday night and Tuesday, 5,000 ft. Tuesday night,  4,000 ft. Wednesday and Wednesday night, then 3,500 ft. Thursday highs 50-42 lows 32-27.

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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.