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Here is my weekly weather quiz question. What is the “green sky” effect? Please 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 low pressure (“U” shape offshore coming out of the Gulf of Alaska) is following behind another low that is moving away from us will be taking the slight chance of showers with it. A frontal system moved through Oregon spreading more clouds over the area and producing some showers, particularly in Eastern Oregon. Weak high pressure will be sandwiched between those lows. Look for more sunshine and warmer temperatures returning. There will be another weak frontal system pushing through Oregon, but this one should be dry for the most part and only lower the temperatures a bit. The drying trend will last through the weekend and into early next week.
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Advisories: NONE AT THIS TIME.
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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: AM clouds, a mix of clouds and sun and warmer today, mostly clear in the evening, mostly cloudy with patchy drizzle late tonight and Friday AM, partly cloudy in the afternoon and evening, mostly cloudy Friday night and Saturday AM, a mix of clouds and sun in the afternoon, partly cloudy in the evening, then mostly cloudy Saturday night highs 77-70 lows 49-44. AM clouds, then a mix of clouds and sun Sunday, partly cloudy in the evening, mostly cloudy Sunday night through Tuesday evening, then just partly cloudy Tuesday night and Wednesday highs near 70 lows 44-48. (seasonal averages high 71 low 46)
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Forecast for the Umpqua Basin including Roseburg: Sunny this AM, partly cloudy this afternoon, mostly clear in the evening, mostly cloudy late tonight and Friday AM, mostly cloudy with a slight (20%) chance of showers Friday AM, a slight (20%) chance of thunderstorms in the afternoon, mostly cloudy Friday night, AM clouds Saturday then partly cloudy Saturday afternoon, mostly cloudy Saturday night highs 75-70 warming to 75 Saturday lows near 50. Mostly cloudy Sunday through Tuesday evening, clearing Tuesday night, then mostly sunny Wednesday highs near 77 lows near 50. (seasonal averages high 76 low 49)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy coastal fog this AM, partly cloudy this afternoon and evening, mostly cloudy tonight with patchy coastal fog late at night and early Friday AM with a slight (20%) chance of AM coastal showers, mostly cloudy Friday afternoon and night with patchy fog late at night and early Saturday AM, mostly sunny Saturday afternoon, and just mostly cloudy Saturday night highs 64-59 lows near 50. Mostly cloudy Sunday through Monday night, partly cloudy Tuesday AM, mostly cloudy Tuesday afternoon, then partly cloudyTuesday night and Wednesday highs near 64 lows near 49. (seasonal averages high 63 low 50).
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Forecast for the Cascades of Lane County: Mostly sunny today, clear this evening, mostly cloudy with a slight (20%) chance of showers late tonight and Friday AM, a mix of clouds and sun in the afternoon with just a slight (20%) chance of thunderstorms, partly cloudy in the evening, mostly cloudy late Friday night and Saturday AM, a mix of clouds and sun Saturday afternoon, then partly cloudy in the evening and mostly cloudy late Saturday night free air freezing level 9,000 ft. rising to 11,000 ft. this afternoon, snow level above 8,000 ft. tonight, 8,000 ft. Friday afternoon, free air freezing level 9,000 ft. Friday night and Saturday, then 10,000 ft. Saturday night highs 62-52 warming to 60 Saturday lows near 40. A mix of clouds and sun Sunday and Monday, mostly cloudy each night, mostly cloudy with a slight (20%) chance of rain Tuesday afternoon and evening, then partly cloudy late Tuesday night and Wednesday free air freezing level 9,000 ft. Sunday, 10,000 ft. Sunday night, 9,000 ft. Monday, and Monday night snow level above 8,000 ft. Tuesday and Tuesday night, then a free air freezing level 12,000 ft. Wednesday highs near 60 lows near 40.
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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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Get your local Eugene /Springfield news on-line at EugeneDailyNews.com.
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