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Saturday and Sunday will see heavier rainfall amounts of rain totaling between one inch and two inches. With more heavy rain possible Monday the three-day total could be between two and three inches of rain. The coast and particularly the mountains could see much heavier amounts of rainfall. Be particularly watchful if you leave near a creek, stream, or river as the levels could rise rapidly with sustained moderate to heavy rainfall.
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An upper level upper level High Pressure ridge (“Arch” shaped area) is moving eastward away from us. An upper level trough of low pressure (the “U” shaped area stretching down from over the Gulf of Alaska) is starting to change our weather and help send moisture with a cold front that passed through Oregon. The next frontal system will hit us with possibly heavy amounts of rain Saturday and Sunday and some strong winds too. Another frontal system will push through Oregon Thursday.
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Advisories: A HIGH WIND WARNING IS IN EFFECT FROM 8 PM SATURDAY THROUGH 8 AM SUNDAY FOR THE NORTH AND CENTRAL OREGON COAST. A HIGH WIND WARNING IS IN EFFECT FROM 8 PM SATURDAY THROUGH 11 AM SUNDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A HIGH WIND WATCH IS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY AFTERNOON FOR THE SOUTH CENTRAL OREGON CASCADES.
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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 rain tonight, a (40%) chance of AM showers Saturday, a good (50%) chance of afternoon rain, rain and breezy (winds: S 10-15 mph increasing to S 15-25 mph late at night) Saturday night, breezy (winds: SW 15-25 mph gusts to 35 mph) Sunday, showers and breezy (wind: SW 15-25 mph gusts to 35 mph) Sunday night lows 45-49-44 highs 60-56. Mostly cloudy with showers Monday, mostly cloudy with showers likely (60%) Monday night and Tuesday, mostly cloudy with a (30%) chance of showers Tuesday night and Wednesday, rain likely (60%) Wednesday night and Thursday, and mostly cloudy with a (40%) chance of rain Thursday night and Friday highs 55-52 warming to near 57 Thursday and Friday lows 40-35. (seasonal averages highs 62 low 39)
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Forecast for the Umpqua Basin including, Roseburg: Mostly cloudy with rain tonight, showers likely (60%) Saturday, rain and breezy (winds: S 15-25 mph gusts to 40 mph) Saturday night, rain and breezy ( winds: SW 20-25 mph gusts to 40 mph) Sunday, and showers Sunday night lows 47-50-45 highs 63-58. Mostly cloudy with showers and breezy Monday, showers likely (60%) and colder Monday night and Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, rain likely (60%) Wednesday night and Thursday, and a (40%) chance of rain Thursday night and Friday highs 54-60 lows 42-46. (seasonal averages high 66 low 43)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with rain tonight, showers likely and breezy (winds: S 15-25 mph) Saturday, rain and windy (winds: S 20 15-20 mph increasing to 30-40 mph gusts to 70 mph late at night at the shore and S 10-20 mph increasing to 20-30 mph late inland Saturday night then SW 25-35 mph gusts to 60 mph Sunday AM, decreasing to SW 20-25 mph gusts to 40 mph in the afternoon) Saturday night and Sunday, with showers and breezy ( winds: SW 20-25 mph gusts to 40 mph late) Sunday night lows 46-55 highs 62-58. Mostly cloudy with showers and breezy Monday, showers likely (60%) Monday night and Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, rain likely (60%) Wednesday night and Thursday, and mostly cloudy with a (40%) chance of rain Thursday night and Friday highs 57-60 lows 42-50. (seasonal averages high 62 lows 45).
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Forecast for the Cascades of Lane County: Cloudy with rain tonight (1-3 in. of snow 6,000 ft.), showers likely (60%) Saturday AM, rain likely (60%) Saturday afternoon (1 in. of snow 6,000 ft.), rain Saturday night and Sunday AM, showers and breezy (winds: SW 15-25 mpg gusts to 55 mph over the ridges slowing to 45 mph in the afternoon) in the afternoon, then rain and snow showers and breezy Sunday night snow level 6,000 ft. tonight through Saturday, 8,000 ft. Saturday night, 5,500 ft. Sunday afternoon, and falling to 4,500 ft. Sunday night lows near 34-29 highs 46-40. Mostly cloudy and breezy with rain and snow Monday, rain and snow showers likely (60%) Monday night and Tuesday, a (40%) chance of rain and snow showers Tuesday night, a slight (20%) chance of showers Wednesday, a slight (20%) chance of rain Wednesday night, and mostly cloudy with rain likely (60%) Thursday snow level 6,000 ft. Sunday afternoon, dropping to 4,500 ft. Sunday night, and 4,000 ft. Monday through Tuesday, rising to 4,500 ft. Tuesday night, 5,500 ft. Wednesday, and 8,000 ft. Wednesday night and Thursday highs 34-50 lows 27-34.
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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.