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The upper air flow (yellow jet stream and dark colors for winds) shows a low (yellow circle) moving through California as a high pressure ridge (the “Arch” shape on the yellow line) will keep us dry with some sunshine for a while. A frontal system has been pushing through Southern California giving them just what they don’t need, more rain. They have already suffered from flooding and mud slides caused by the heavy rain.
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Advisories: A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 9 AM MONDAY FOR THE SOUTH CENTRAL OREGON COAST. A FREEZE WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY MORNING FOR THE SOUTH CENTRAL OREGON COAST. A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM MONDAY FOR THE SOUTH OREGON COAST (CURRY COUNTY COAST). AN AIR STAGNATION ADVISORY IS IN EFFECT FROM 4 AM MONDAY UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON 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: Partly cloudy this evening, mostly cloudy with patchy late night and early AM fog and freezing fog, then mostly sunny Monday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog and freezing fog late Monday night and Tuesday AM, a mix of clouds and sun Tuesday afternoon, partly cloudy with patchy fog and freezing fog late at night and early Wednesday AM, then mostly cloudy Wednesday afternoon and Wednesday night lows 24-35 highs 35-46. Mostly cloudy Thursday, mostly cloudy with a (30%) chance of rain Thursday night, a good (50%) chance of rain Friday through Saturday night, and a (40%) chance of showers Sunday highs 50-42 lows 35-40. (seasonal averages highs 45 low 32)
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Forecast for the Umpqua Basin including, Roseburg: Partly cloudy with patchy fog and freezing fog late tonight and early Monday AM, partly cloudy in the afternoon, mostly clear Monday evening, partly cloudy with patchy fog and freezing fog late at night and Tuesday AM, partly cloudy in the afternoon, mostly cloudy with patchy fog and freezing fog late Tuesday night and early Wednesday AM, then mostly cloudy Wednesday afternoon through Thursday night lows 30-40 highs 40-56. Mostly cloudy with a (40%) chance of rain Friday, a good (50%) chance of rain Saturday and Saturday night, and a (40%) chance of rain Sunday highs 56-52 lows near 37. (seasonal averages high 49 low 34)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear tonight, mostly sunny Monday, mostly clear Monday night, partly cloudy Tuesday, then just mostly cloudy Tuesday night through Thursday night lows 33-39 highs 47-55. Mostly cloudy with a (30%) chance of rain Friday, a good (50%) chance of rain Friday night through Saturday night, then a (40%) chance of showers Sunday highs near 54 lows 40-42. (seasonal averages high 52 lows 39).
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Forecast for the Cascades of Lane County: Mostly clear tonight, mostly sunny Monday, partly cloudy Monday night, a mix of clouds and sun Tuesday, partly cloudy Tuesday night, mostly cloudy with a slight (20%) chance of light freezing rain, mainly North of Mt. Hood, then mostly cloudy with a slight (20%) chance of rain and snow Wednesday night free air freezing level 2,500 ft. tonight, 3,500 ft. Monday, 3,000 ft. Monday night, 3,500 ft, Tuesday, and 4,000 ft. Tuesday night, rising to 5,000 ft. Wednesday, and 4,000 ft. Wednesday night lows 17-30 highs 32-36. Mostly cloudy with a slight (20%) chance of rain and snow Thursday, a (40%) chance of rain and snow Thursday night, (40%) Friday night, then a good (50%) chance of rain and snow showers Friday night through Sunday snow level 4,000 ft. Thursday, 3,500 ft. Thursday through Friday night, and falling to 3,000 ft. Saturday highs 37-33 lows 30-25.
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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