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The upper air flow is pushing lots of moisture our way to set us up for some more potentially heavy rain. A warm front has already brought heavy rain to the area with a large pool of warm moist air that moved in. The front is being followed by a cold front increasing the rain again into tonight. More frontal systems will be hitting Oregon continuing into next week with a much cooler air mass expected later next week.
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Advisories: A WINTER STORM WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING FOR THE NORTH OREGON CASCADES AND THE CASCADES OF LANE COUNTY. A WINTER STORM WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES, SND THE SISKIYOU MOUNTAINS ABOVE 4,500 FT. A HIGH WIND WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON FOR CENTRAL AND EASTERN LAKE COUNTY. A FLOOD WATCH IS IN EFFECT THROUGH MONDAY MORNING FOR WESTERN OREGON FROM FLORENCE THROUGH COTTAGE GROVE AND EUGENE TO SWEET HOME NORTH THROUGH HOOD RIVER TO WOODLAND NORTH INTO THE STATE OF WASHINGTON AND WEST TO THE COAST (TAKE PROPER PRECAUTIONS IF YOU LIVE NEAR A RIVER OR STREAM THAT MIGHT FLOOD).
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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 rain tonight (0.50 in. of rain possible), mostly cloudy with showers Monday AM, showers likely (60%) then decreasing in the afternoon (0.25 in. of rain possible), rain returning Monday night (o.50 in. of rain possible), showers and cooler Tuesday (0.50 in. of rain possible), then showers likely (60%) Tuesday night (0.10 in. of rain possible lows 46-34 highs 54-43. Rain likely (60%) Wednesday and Wednesday night, mostly cloudy with Thursday, then rain likely (60%) Thursday night through Sunday highs holding steady near 45 lows 33-38. (seasonal averages highs 46 low 33)
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Forecast for the Umpqua Basin including, Roseburg: Cloudy with rain tonight through Tuesday AM, rain and snow showers in the afternoon, rain and snow showers and isolated thunderstorms Tuesday evening then rain and snow showers likely (60%) late Tuesday night, mostly cloudy with rain and snow showers likely (60%) Wednesday, and cloudy with a (40%) chance of rain and snow Wednesday night lows 47-35 highs 56-43. Cloudy with a good (50%) chance of rain and snow Thursday, rain and snow likely (60%) Thursday night, rain Friday night through Saturday night, and rain and snow likely (60%) Sunday highs between 45 and 50 lows near 38. (seasonal averages high 49 low 35)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain and breezy (wind: SW 15-25 mph) tonight, coastal AM rain Monday, rain likely (60%) in the afternoon, rain inland all day, rain and breezy (wind: SW 15-25 mph gusts to 40 mph late) Monday night, rain and breezy (wind: SW 15-25 mph gusts to 40 mph) Tuesday AM, showers in the afternoon, evening coastal showers and and isolated thunderstorms then showers late at night, evening showers inland then showers likely (60%) late at night, showers likely (60%) Wednesday and Wednesday night lows 50-40 highs 54-45. Cloudy with AM rain likely (60%) Thursday, rain likely (60%) Thursday night, then rain Friday through Sunday highs 50-45 lows 40-43. (seasonal averages high 53 lows 39).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain tonight (up to 1.5 in. of rain possible), mostly cloudy with showers Monday (2 in. of snow possible and 0.10 in. of rain possible), evening rain likely (60%), then and rain and snow late Monday night (4-8 in. of snow possible), snow and and rain and breezy (SW 10-20 mph) Tuesday (10-15 in. of snow possible), snow showers Tuesday night (3-6 in. of snow possible), mostly cloudy with snow likely (60%) Wednesday and Wednesday night snow level 8,000 ft. falling to 7,000 ft late tonight, 6,000 ft. falling to 5,000 ft. Monday afternoon, 4,500 ft. late Monday night, 3,000 ft. falling to 2,500 ft. Tuesday afternoon, and down to the surface Tuesday night through Wednesday night lows 37-20 highs 43-26. Mostly cloudy with a good (50%) chance of snow Thursday, snow likely (60%-70%) Thursday night through Sunday snow level at the surface highs near 30 lows between 25 and 28.
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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.