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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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An upper level low (Shaded “U” shape, more like a donut) has taken over bringing rain and dropping temperatures drastically. This unsettled weather will continue for the rest of the week as the low rotates over and then past us late Friday. It looks like there will still be a 50/50 chance of showers for the Memorial Day Holiday itself with temperatures near seasonal normal so plan accordingly. It will feel the coldest near or on the water, sorry about that. A complex frontal system will be approaching the West Coast Wednesday.
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Advisories: NONE AT THIS TIME.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with rain tonight (0.25 in. of rain possible), showers likely (70%) Friday (0.10 in. of rain possible), a slight (20%) chance of showers Friday night (under 0.10 in. of rain possible) and Saturday AM, mostly cloudy with a (40%) chance of showers Saturday afternoon (under 0.10 in. of rain possible) through Sunday, then mostly cloudy with a (40%) chance of rain Sunday night lows 47-42 warming to 48 Sunday night highs 58-67. Cloudy with a good (50%) chance of rain Monday (Memorial Day) and at night, mostly cloudy with rain likely (70%) Tuesday and Tuesday night, cloudy with showers likely (60%) Wednesday, then mostly cloudy with a good (50%) chance of showers at night and Thursday highs 63-65 lows 50-45. (seasonal averages high 68 low 45)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with showers tonight (0.20 in. of rain possible), a (40%) chance of showers Friday (under 0.10 in. of rain possible), a slight (20%) chance of showers at night, then mostly cloudy with a (30%) chance of showers Saturday (under 0.10 in. of rain possible), a (40%) chance of showers Saturday night (under 0.10 in. of rain possible), then mostly cloudy with a (30%) chance of showers Sunday and Sunday night lows 47-54 cooling to near 50 Sunday night highs 65-70. Cloudy with a good (50%) chance of rain Monday (Memorial Day), mostly cloudy with showers likely (60%) Monday night, cloudy with a good (50%) chance of showers Tuesday, showers likely (60%) Tuesday night and Wednesday, then mostly cloudy with a good (50%) chance of showers Wednesday night and Thursday highs 67-70 cooling to 67 Thursday lows 52-50. (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 showers tonight (0.30 in. of rain possible), coastal showers likely (70%) Friday AM, a good (50%) chance of showers in the afternoon (under 0.10 in. of rain possible), a slight (20%) chance of showers Friday night (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers Saturday (under 0.10 in. of rain possible) and Saturday night (under 0.10 in. of rain possible), a good (50%) chance of showers Sunday and Sunday evening, then a (40%) of rain late at night lows 49-46 rising to 53 Saturday night falling to near 50 Sunday night highs 57-62. Mostly cloudy with a (40%) chance of showers Monday (Memorial Day), showers likely (70%) Monday night, a good (50%) chance of showers Tuesday, showers likely (60%) Tuesday night, then mostly cloudy with a good (50%) chance of showers Wednesday night and Thursday highs 58-62 cooling to 57 Thursday lows near 52. (seasonal averages high 60 low 48)
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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow tonight (0.25 in. of rain possible, 1-3 in. of snow possible), rain and snow showers Friday (0.10 in. of rain possible, 1 in. of snow possible), a (40%) chance of evening showers, a slight (20%) chance of showers late Friday night and Saturday AM, a mix of clouds and sun and a bit warmer with a (40%) chance of showers Saturday afternoon, mostly cloudy with a good (50%) chance of showers Saturday night, a (40%) chance of showers Sunday, then mostly cloudy with a good (50%) chance of rain Sunday night snow level 5,000 ft. tonight, 4,500 ft. Friday, 6,000 ft. Friday night and Saturday, 7,000 ft. Saturday night and Sunday, then 7,500 ft. Sunday night lows 32-39 highs 43-55. Mostly cloudy with rain likely (60%) Monday (Memorial Day) through Tuesday night, then mostly cloudy with showers likely (60%) Wednesday and Thursday with cloudy skies and a good (50%) chance of showers Wednesday night snow level 8,000 ft. Monday and Monday night, 7,000 ft. Tuesday, above 8,000 ft. Tuesday night, 7,000 ft. Wednesday, 6,500 ft. at night, then 5,500 ft. Thursday highs 52-50 lows 39-34.
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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.
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