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An upper air high pressure ridge (“arch” shape) cleared out the clouds through a good portion of Saturday, but we are back to wet as a series of low pressure troughs approach and the first in a series of frontal systems return the rain for the week. Another storm system will be approaching the coast Wednesday, followed by yet another frontal system Sunday.
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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 AM MONDAY THROUGH 5 AM TUESDAY FOR THE NORTH OREGON CASCADES AND THE CASCADES OF LANE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 5 AM MONDAY THROUGH 5 AM TUESDAY ABOVE 5,000 FT. FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES, AND THE SISKIYOU MOUNTAINS. A WIND ADVISORY IS IN EFFECT FROM 8 AM UNTIL 11 PM MONDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES, AND THE SISKIYOU MOUNTAINS, AND THE KLAMATH BASIN. A HIGH WIND WARNING IS IN EFFECT FROM 8 AM UNTIL 11 PM MONDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND FOR WESTERN, CENTRAL, AND EASTERN LAKE COUNTY. A HIGH WIND WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON FOR THE NORTH AND CENTRAL OREGON 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: Mostly cloudy with a good (50%) chance of rain this evening, rain likely (60%) late tonight (0.25 in. of rain possible), rain Monday (0.50 in. of rain possible) and windy (wind: S 15-30 mph gusts to 35 mph), showers likely (60%) Monday night (0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers Tuesday through Wednesday, mostly cloudy Wednesday night with a good (50%) chance of rain lows 43-38 warming to 45 Wednesday night highs 53-59. Mostly cloudy with a (40%) chance of showers Thursday through Friday, partly cloudy with a slight (20%) chance of showers Friday night through Sunday highs 53-60 lows near 40. (seasonal averages high 62 low 40)
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Forecast for the Umpqua Basin including Roseburg: Cloudy with scattered showers this evening (snow level 3,500 ft.), rain late tonight and Monday AM, afternoon showers Monday (afternoon snow level 3,500 ft.), showers likely (60%) Monday night (snow level 2,500 ft.), mostly cloudy with a (30%) chance of showers Tuesday (AM snow level 2,500 ft.) and Tuesday night (snow level 3,500 ft. in the evening), mostly cloudy with a good (50%) chance of showers Wednesday and a (%) chance of rain Wednesday night lows 45-40 warming to 44 Wednesday night highs 54-62. Mostly cloudy with a (40%) chance of showers Thursday, a (30%) chance of showers Friday, a slight (20%) chance of showers Friday night, then just mostly cloudy Saturday through Sunday 52-62 lows near 40. (seasonal averages high 66 low 42)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with scattered coastal showers this evening, isolated evening showers inland, rain late tonight and Monday AM, showers Monday afternoon and windy (wind: SE 15-25 mph gusts to 40 mph increasing to S 25-35 mph gusts to 55 mph late AM, shifting to W 15-25 mph gusts to 40 mph in the afternoon), showers likely (60%) Monday night, a good (50%) chance of showers Tuesday, then a (30%) chance of showers Tuesday night, mostly cloudy with a good (50%) chance of showers Wednesday, then a good (50%) chance of rain Wednesday night lows 48-42 highs 52-55. Mostly cloudy with a (40%) chance of showers Thursday and Thursday night, a (30%) chance of showers Friday, mostly cloudy Friday night, then partly cloudy Saturday through Sunday highs 50-53 lows near 42. (seasonal averages high 58 low 44).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow showers likely (60%) this evening, rain and snow likely (60%) late tonight (1-3 in. of snow possible), snow and rain Monday (5-10 in. of snow possible) and windy (wind: SW 15-30 mph gusts to 45 mph), snow showers Monday night (5-9 in. of snow possible) and breezy (wind: W 15-25 mph gusts to 40 mph shifting to SW 10-15 mph gusts to 30 mph late at night), cloudy with AM snow showers likely (60%) Tuesday, rain and snow showers likely (60%) in the afternoon (2-5 in. of snow possible), mostly cloudy with rain and snow showers Tuesday night, a good (50%) chance of rain and snow showers Wednesday, then a good (50%) chance of rain and snow Wednesday night snow level 3,500 ft. rising to 4,000 ft. late tonight, 3,500 ft. Monday, 2,50o ft. Monday night, 2,500 ft. rising to 3,500 ft. Tuesday afternoon, 4,000 ft. Tuesday night and Wednesday, then 4,500 ft. Wednesday night lows 30-25 warming to near 33 Wednesday night highs 36-33 warming to near 42 by Wednesday. Mostly cloudy with rain and snow showers Thursday, rain and snow showers likely (60%) Thursday night, a (40%) chance of rain and snow showers Friday, a (30%) chance of snow showers and a slight (20%) chance of showers Friday night, then partly cloudy with a (30%) chance of rain and snow showers Saturday, partly cloudy with a slight (20%) chance of rain and snow showers Saturday night, then partly cloudy with a slight (20%) chance of rain and snow showers Sunday snow level 3,000 ft. Thursday and Thursday night, 3,500 ft. Friday and Friday night, 4,000 ft. Saturday and Saturday night, then 4,500 ft. Sunday highs 40-45 lows near 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.