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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 controlling our weather for the next couple of days but as it moves the slight chance of showers will disappear. Weak high pressure will be sandwiched between those lows. Look for more sunshine and warmer temperatures returning late in the week. There will be another weak frontal system (position shown on Friday) 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 well into 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: Mostly cloudy with sun breaks today, partly cloudy tonight, AM clouds, partly cloudy and warmer Thursday, partly cloudy in the evening, mostly Thursday night, AM clouds with a slight (20%) chance of drizzle Friday, partly cloudy in the afternoon and evening, then mostly cloudy Friday night highs 68-75 cooling to near 70 Friday lows 45-50 cooling to 45 Friday night. A mix of clouds and sun Saturday and Sunday, mostly cloudy Saturday night, AM clouds then a mix of clouds and sun Sunday through Tuesday, just partly cloudy each night highs near 70 lows 44-48. (seasonal averages high 71 low 46)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this AM, mostly sunny this afternoon, partly cloudy tonight, mostly cloudy Thursday AM, mostly sunny Thursday afternoon, mostly clear in the evening then mostly cloudy late Thursday night, mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy in the afternoon through Saturday, then mostly cloudy Saturday night highs 72-77 cooling to near 70 Friday lows 49-53 cooling to 49 Friday night. Mostly cloudy Sunday and Sunday night, then partly cloudy Monday through Tuesday highs 72-76 cooling to 70 Tuesday 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 this AM, mostly sunny this afternoon, partly cloudy this evening, mostly cloudy tonight with patchy coastal fog late tonight and Thursday AM, partly cloudy Thursday afternoon and evening, mostly cloudy Thursday night through Friday night highs 64-67 cooling to near 60 Friday lows 48-52 cooling to 48 Friday night. Mostly cloudy Saturday through Tuesday AM with patchy AM and late night coastal fog, then partly cloudy with a slight (20%) chance of showers Tuesday afternoon highs 65-57 lows near 49. (seasonal averages high 63 low 50).
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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of showers today, mostly cloudy with a slight chance of showers this evening, partly cloudy late tonight, a mix of clouds and sun Thursday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Thursday night, partly cloudy with a slight (20%) chance of showers Friday, partly cloudy in the evening, then mostly cloudy late Friday night snow level 7,000 ft. today, 8,000 ft. tonight, free air freezing level 10,000 ft. rising to 11,000 ft. Thursday, snow level above 8,000 ft. Thursday night and Friday, then free air freezing level 10,000 ft. Friday night highs 52-60 falling to 57 Friday lows 35-43. A mix of clouds and sun Saturday through Monday, partly cloudy each night, then partly cloudy Tuesday free air freezing level 9,000 ft. Saturday, 10,000 ft. Saturday night, 9,000 ft. Sunday and Sunday night, 10,000 ft. Monday and Monday night, then rising to 11,000 ft. Tuesday 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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