Apr
10.
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An upper air trough of low pressure (“U” shape) is moving South through Oregon and has brought with it colder air from the Northwest. A cold front is on its way to the Pacific Northwest and is bringing clouds and rain ahead of and with it, and falling snow levels behind it. Another frontal system should be moving in during the day Tuesday.
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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 (40%) chance of rain today (0.10 in. of rain possible), a good (50%) chance of rain this evening, rain likely (60%) tonight (0.25 in. of rain possible), mostly cloudy with a good (50%) chance of showers Monday (0.10 in. of rain possible), then partly cloudy with a slight (20%) chance of showers Monday evening, a slight (20%) chance of rain late Monday night, a mix of clouds and sun Tuesday, mostly cloudy with a (40%) chance of rain Tuesday night highs 58-50-54 lows 40-34. Mostly cloudy with a good (50%) chance of rain Wednesday through Saturday highs 53-57 lows 38-42. (seasonal averages high 60 low 38)
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Forecast for the Umpqua Basin including Roseburg: Cloudy with a (30%) chance of rain today, a good (50%) chance of evening rain, rain late tonight (snow level 3,000 ft. late), cloudy with AM rain and snow showers likely (60%) Monday, then a good (50%) chance of rain and snow showers Monday afternoon (snow level 2,000 ft. falling to 1,500 ft. in the afternoon), a slight (20%) chance of rain and snow showers in the evening, a slight (20%) chance of rain and snow showers late Monday night (snow level 2,000 ft. in the evening), partly cloudy with a slight (20%) chance of afternoon rain Tuesday, and a good (50%) chance of rain and snow Tuesday night highs 62-50 warming to 56 Tuesday lows 42-34 rising to 40 Tuesday night. Mostly cloudy with a (40%) chance of rain and snow Wednesday, a good (50%) chance of rain Thursday and Thursday night, then mostly cloudy with a (40%) chance of rain Friday through Saturday highs 52-60 lows 40-43. (seasonal averages high 64 low 40)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with a (40%) chance of rain today, evening rain likely (60%), rain tonight, mostly cloudy with AM showers likely (60%) Monday, a good (50%) chance of showers Monday afternoon (snow level 2,000 ft. falling to 1,500 ft. in the afternoon), mostly cloudy with a slight (20%) chance of evening showers, a slight (20%) chance of rain and colder Monday night, partly cloudy with a slight (20%) chance of rain Tuesday afternoon, then a (40%) chance of rain Tuesday night highs 53-50-52 lows 42-37 warming to 42 Tuesday night. Mostly cloudy with rain likely (60%) Wednesday through Friday, then cloudy with a good (50%) chance of rain Friday night and Saturday highs from 50-56 and back near 50 Thursday lows 39-45. (seasonal averages high 57 low 42).
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Forecast for the Cascades of Lane County: Cloudy with a (40%) chance of rain and snow today and this evening, rain with snow likely (60%) late tonight (2-5 in. of snow possible), snow showers likely (60%) Monday, then a slight (20%) chance of snow showers Monday evening, a slight (20%) chance of snow late at night and colder, partly cloudy Tuesday, then mostly cloudy with a good (50%) chance of snow and rain Tuesday night snow level 4,500 ft. today and tonight, 2,500 ft. Monday afternoon, at the surface Monday night, free air freezing level 3,000 ft. Tuesday and 3,500 ft. Tuesday night highs 43-34 lows 27-19 and back up to 25 Tuesday night. Mostly cloudy with a good (50%) chance of snow and rain Wednesday, snow likely (60%) Wednesday night, snow and rain likely (60%) Thursday, rain and snow likely (60%) Thursday night, then rain likely (60%) Friday through Saturday snow level 3,000 ft. Wednesday, 2,500 ft Wednesday night, 3,000 ft. Thursday, 5,000 ft. Thursday night, then 6,000 ft. Friday, then 4,500 ft. Friday night and Saturday highs 38-44 lows 22-29.
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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.