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Check out my new Eugene Daily News column Weather or Not: TBA ASAP.
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Here is my new weekly weather quiz question. Please define the term “backdoor cold front.” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.
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Upper level high pressure (Shaded “Arch” shape with blue arrows) cleared us out for a while returning the sunshine. An upper level low (Shaded “U” shape) is taking over pushing a frontal system through the Pacific Northwest bringing rain and dropping temperatures drastically today. It looks like there will be just a slight chance of showers for the long Memorial Day Holiday weekend.
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Advisories: A wind advisory is in effect from Noon until 8 PM today for Northern and eastern Klamath County, and western , central, and eastern Lake County.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with AM rain, showers and a lot cooler with a slight (20%) chance of thunderstorms and some small hail possible this afternoon and evening (0.25 in. of rain possible), showers with small hail possible tonight (0.10 in. of rain possible), and again Wednesday (0.50 in. of rain possible), mostly cloudy with showers likely (70%) with small hail possible in the evening, showers Wednesday night, showers likely (70%) Thursday and Thursday night highs 54-50 warming to 56 Friday lows 42-45. Mostly cloudy with showers likely (60%) Friday, a (40%) chance of showers Friday night, a mix of clouds and sun with a slight (20%) chance of showers Saturday, Sunday, and Monday (Memorial Day) while mostly cloudy with a slight (20%) chance of showers each night highs 65-70 lows near 45. (seasonal averages high 68 low 44)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with AM rain, showers and cooler with a slight (20%) chance of thunderstorms with small hail possible this afternoon and evening (0.25 in. of rain possible), rain and snow showers late tonight (snow level 3,500 ft. falling to 2,500 ft. late at night- no accumulation expected, 0.10 in. of rain possible), rain and snow showers Wednesday AM, showers in the afternoon (snow level 3,000 ft. rising to 3,500 ft. in the afternoon, 0.20 in. of rain possible), cloudy with a good (50%) chance of evening showers with small hail possible, then showers likely (70%) Wednesday night (0.10 in. of rain possible, snow level 3,500 ft. in the evening) through Thursday night highs 56-60 lows 40-46. Mostly cloudy with showers likely (60%) and warmer Friday, partly cloudy with a (30%) chance of showers Friday night, partly cloudy with a slight (20%) chance of showers Saturday and Saturday night, mostly cloudy with a slight (20%) chance of showers Sunday and Monday (Memorial Day), partly cloudy at night highs 66-73 cooling to near 70 Monday lows 46-50 cooling to 45 Sunday night. (seasonal averages high 71 low 48)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with AM rain today, showers with a slight (20%) chance of thunderstorms and small hail this afternoon and evening (0.50 in. of rain possible), showers late tonight (0.20 in. of rain possible), showers Wednesday AM, showers with small hail possible in the afternoon (0.60 in. of rain possible), coastal showers at night while showers likely (60%) Wednesday night inland (0.40 in. of rain possible), then mostly cloudy with showers Thursday and showers likely (60%) Thursday night highs 52-55 lows 45-48. Mostly cloudy with showers Friday, a (40%) chance of showers at night, partly cloudy with a slight (20%) chance of showers Saturday and Saturday night, mostly cloudy with a slight (20%) chance of showers Sunday and Monday (Memorial Day) while partly cloudy with a slight (20%) chance of showers at night highs 58-62 lows near 48. (seasonal averages high 59 low 48)
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Forecast for the Cascades of Lane County: Mostly cloudy with AM rain, showers and much cooler this afternoon and evening with a slight (20%) chance of thunderstorms and small hail possible (0.50 in. of rain possible), rain and snow showers and colder tonight with small hail possible (0.25 in. of rain possible), mostly cloudy with showers Wednesday and in the evening, a good (50%) chance of rain and snow showers Wednesday night, then rain and snow showers likely (60%) Thursday and Thursday night snow level 7,500 ft. falling to 5,500 ft. this afternoon, 4,000 ft. falling to 3,000 ft. late at night and Wednesday, 4,000 ft. Wednesday night and Thursday, then 5,000 ft. Thursday night highs 42-35 warming to 40 Friday lows 27-32. Mostly cloudy with rain and snow showers likely (60%) Friday, a (40%) chance of rain and snow showers Friday night, a mix of clouds and sun with a (30%) chance of showers Saturday, Sunday, and Monday (Memorial Day) while mostly cloudy with a slight (20%) chance of showers each night snow level 4,500 ft. Friday, 5,500 ft. Friday night, 6,000 ft. Saturday, 8,000 ft. at night, 7,000 ft. Sunday, 8,000 ft. at night, then 7,000 ft. Monday highs 45-55 lows 34-38.
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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.
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