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The jet stream shows a high pressure ridge (“arch” shape) that is building into the Pacific Northwest and will warm us up a bit, so it will feel more like Spring.. There is another  frontal system on its way to the Pacific Northwest, but that won’t happen until later in the week.

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Advisories:  A WIND ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM TODAY FOR CENTRAL AND EASTERN LAKE 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: Mostly cloudy with a (40%) chance of rain today (less than 0.10 in. of rain possible), just mostly cloudy tonight and Thursday, mostly cloudy with a (20%) chance of rain in the evening, a slight (20%) chance of rain late Thursday night, AM clouds Friday, a mix of clouds and sun in the afternoon, and a (30%) of showers Friday night highs 65-64-62 lows 47-40. Mostly cloudy with a good (50%) chance of showers Saturday, a (30%) chance of rain Saturday night, partly cloudy with a slight (20%) chance of showers Sunday through Monday, then mostly cloudy with a (40%) chance of rain Tuesday highs near 56 lows 38-42. (seasonal  averages high 58 low 38)

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Forecast for the Umpqua Basin including, Roseburg:  Cloudy with patchy AM fog and a (40%) chance of rain today, mostly cloudy with a slight (20%) chance of rain tonight, partly cloudy  with a slight (20%) chance of rain Thursday, just partly cloudy Thursday night, mostly cloudy Friday, a (30%) chance of showers Friday night highs 69-66 lows 47-42. Mostly cloudy with a (30%) chance of showers Saturday, a slight (20%) chance of rain and snow showers Saturday night, partly cloudy Sunday, mostly cloudy Sunday night, partly cloudy and warmer Monday, mostly cloudy with a (30%) chance of rain Monday night, then a (40%) chance of rain Tuesday highs 54-63 cooling to 55 Tuesday lows 37-42. (seasonal averages high 62 low 39)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy AM fog and a (30%) chance of rain today, mostly cloudy tonight with a slight (20%) chance of showers, partly cloudy Thursday with a slight (20%) chance of AM rain inland and a (30%) chance of coastal rain, mostly cloudy in the evening and partly cloudy Thursday night, mostly cloudy Friday, and a (30%) chance of showers Friday night highs 57-60 cooling to 55 Friday lows 47-42. Mostly cloudy with a slight (20%) of showers Saturday, a slight (20%) chance of showers Saturday night through Sunday night, a (30%) chance of rain Monday, then a (40%) chance of rain Monday night and Tuesday highs 50-58 cooling to 53 Tuesday lows 38-42. (seasonal averages high 56 low 42).

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Forecast for the Cascades of Lane County: Cloudy with a (40%) chance of rain today (0.25 in. of rain possible) and breezy (wind: SW 15-25 mph gusts to 45 mph this afternoon), rain likely (60%) North of Mt. Jefferson (0.50 in. of rain possible), mostly cloudy with a slight (20%) chance of rain tonight and Thursday (under 0.10 in. of rain possible), a (30%) chance of rain in the evening, a slight (20%) chance of rain Thursday night, partly cloudy with a slight (20%) chance of showers, mainly North of Sisters, Friday, then mostly cloudy with a (40%) chance of rain and snow showers Friday night snow level 8,000 ft. today through Thursday, 7,000 ft. Thursday night and Friday, falling to 3,500 ft. Friday night highs 53-56-54 lows 35-28. Mostly cloudy with a (40%) chance of snow showers Saturday, a (30%) chance of snow Saturday night, partly cloudy with a (20%) chance of rain and snow showers Sunday, mostly cloudy with a slight (20%) chance of rain and snow showers Sunday night, partly cloudy with a (30%) chance of showers Monday, then mostly cloudy with a good (50%) chance of showers Monday night and Tuesday snow level 3,000 ft. Saturday, 2,500 ft. Saturday night,  4,000 ft. Sunday, 4,500 ft. Sunday night, 5,000 ft. Monday, rising to 7,000 ft. Monday night, and 6,000 ft. Tuesday highs 38-48 cooling to 43 Tuesday lows 23-33.

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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.