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The upper air flow is bending more from the west (called Zonal flow) bringing in warmer, but still very moist air into the Pacific Northwest. A frontal system has brought some warmer air in, so you can forget about the freezing rain and snow for a while at least. More storms will be headed toward us like this one that will move in Saturday to Sunday. Remember that, particularly this time of the year, when it’s not raining it is usually fogging.
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Advisories: A FLOOD WATCH IS IN EFFECT FROM SATURDAY NIGHT THROUGH MONDAY FOR ALL OF WESTERN OREGON FROM FLORENCE TO COTTAGE GROVE, THROUGH THE NORTH CASCADE FOOTHILLS AND THE NORTH CASCADES, INCLUDING THE CASCADES OF LANE COUNTY BACK WESTWARD TO THE PACIFIC COAST.
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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: Cloudy with a (40%) chance of rain tonight and Saturday AM( 0.10 in. of rain possible), rain likely (60%) Saturday (0.75 in. of rain possible) and Saturday night (1.00 in. of rain possible), and rain Sunday (1.00 in. of rain possible), then rain likely (60%) Sunday night (0.25 in. of rain possible) lows 48-42 highs 50-54. Cloudy with showers likely (60%) Monday (Martin Luther King, Jr. Day), mostly cloudy with a good (50%) chance of showers Monday night, then a good (50%) chance of showers Tuesday and a (40%) chance of showers Tuesday night and (30%) Wednesday, then a slight (20%) chance of showers Wednesday night and Thursday, partly cloudy with a (40%) chance of showers Thursday night, and mostly cloudy with a (40%) chance of showers Friday highs 52-47 lows 40-36. (seasonal averages highs 46 low 33)
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Forecast for the Umpqua Basin including, Roseburg: Cloudy with a good (50%) chance of rain tonight, patchy fog late at night and Saturday AM, rain likely (60%) Saturday AM, rain Saturday afternoon through Sunday, rain likely (60%) Sunday night lows near 47 highs near 57. Mostly cloudy with showers likely (60%) Monday (Martin Luther King, Jr. Day), then cloudy with a (40%) chance of showers Monday night, mostly cloudy with a (30%) chance of rain Tuesday, a (30%) chance of showers Tuesday night, just mostly cloudy Wednesday through Thursday night, then mostly cloudy with a slight (20%) chance of rain Friday highs 54- 50 lows 40-34. (seasonal averages high 50 low 35)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with coastal rain likely (60%) and a good (50%) chance of rain inland tonight with patchy fog late at night and Saturday AM, rain in the afternoon and Saturday night and breezy (wind: SW 15-25 mph), rain Sunday and at the shore Sunday night, rain likely (60%) inland lows near 50 highs near 57. Showers likely (60%) Monday (Martin Luther King, Jr. Day), cloudy with a good (50%) chance of showers at night, mostly cloudy with a good (50%) chance of rain Tuesday and a (40%) chance Tuesday night, just mostly cloudy Wednesday through Thursday night, then mostly cloudy with a slight (20%) chance of rain highs 55-52 lows 44-37. (seasonal averages high 53 lows 39).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain likely (60%) tonight (1 in. of snow possible, 0.10 in. of rain possible), a (40%) chance of AM rain, rain Saturday afternoon (0.75 in. of rain possible), rain Saturday night (1.50 in. of rain possible) and breezy (wind: SW 10-15 mph increasing to S 15-25 mph gusts to 40 mph along the ridges late at night), then rain Sunday and breezy (wind: SW 15-25 mph decreasing to 10-15 mph in the afternoon with gusts to 45 mph decreasing to 35 mph in the afternoon) and rain Sunday night (1 in. of snow possible, 0.50 in. of rain possible) snow level 6,000 ft. tonight, 7,000 ft. Saturday through Sunday, falling to 6,000 ft. Sunday night lows near 35-32 highs near 40. Mostly cloudy with showers likely (60%) Monday (Martin Luther King, Jr. Day, mostly cloudy with a good (50%) chance of rain and snow showers Monday night, a (40%) chance of rain Tuesday, rain and snow showers likely (60%) Tuesday night, mostly cloudy with a (30%) chance of snow showers Wednesday, then partly cloudy with a (30%) chance of rain and snow showers Wednesday night, partly cloudy with a (30%) chance of showers Thursday, partly cloudy with a (40%) chance of rain and snow showers Thursday night, and mostly cloudy with a (40%) chance of rain Friday snow level 5,500 ft. Monday, 5,000 ft. Monday night, 6,500 ft. Tuesday, falling to 4,000 ft, Tuesday night, 2,500 ft. Wednesday, 3,000 ft. Wednesday night, rising to 6,000 ft. Thursday, 4,500 ft. Thursday night, and 6,000 ft, Friday highs 40-36 lows 30-26.
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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.