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Check out my newest column for the Eugene Daily News “Some More Things Oregon Doesn’t Have”.
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Here is my new weekly weather quiz question. What is the difference between “Onshore Flow” and “Offshore Flow?” 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 trough of low pressure (shaded “U”shape) is sliding eastward and will keep the clouds and precipitation with us. High pressure (shaded “Arch” shape) will try to take over and dry us out, but will only succeed for a while today. The next frontal system will return the clouds and rain Wednesday. The jet stream will set up in Zonal Flow which means the moisture feed will be moving pretty much on a straight line from West to East. A surface frontal system (position shown is Thursday) will approach the Pacific Northwest in the middle of the week increasing the chance of showers from Wednesday forward.
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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: Patchy fog this AM, a mix of clouds and sun and a bit warmer this afternoon, mostly cloudy tonight, cloudy with a good (50%) chance rain Wednesday AM, afternoon rain (0.30 in. of rain possible), evening showers likely (60%), a good (50%) chance of showers late Wednesday night (0.15 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Thursday, then just partly cloudy Thursday night highs 62-55 lows 46-36. A mix of clouds and sun Friday, mostly cloudy with rain likely (60%) Friday night, showers likely (60%) Saturday, mostly cloudy with a good (50%) chance of rain Saturday night through Sunday night, then a mix of clouds and sun with a (40%) chance of showers Monday highs 59-53 warming to 57 Monday lows 42-34. (seasonal averages high 60 low 39)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with areas of frost and patchy fog late early this AM, mostly cloudy this afternoon, partly cloudy tonight, mostly cloudy with a slight (20%) chance of showers Wednesday AM, showers in the afternoon (under 0.10 in. of rain possible), cloudy with a (40%) chance of evening showers, a (30%) chance of showers late Wednesday night (0.15 in. of rain possible), a slight (20%) chance of showers Thursday AM, then just mostly cloudy Thursday afternoon and night highs 66-62 lows 48-40. Partly cloudy Friday, mostly cloudy with a (40%) chance of rain Friday night, showers likely (60%) Saturday, mostly cloudy with a (40%) chance of showers Saturday night through Sunday night, then mostly cloudy with a (30%) chance of showers Monday highs 62-57 lows 39-42. (seasonal averages high 61 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy fog this AM, mostly cloudy this afternoon and tonight, mostly cloudy with a (30%) chance of showers Wednesday AM, coastal showers in the afternoon while afternoon showers likely (60%) inland (0.20 in. of rain possible), showers likely (60%) in the evening, a slight (20%) chance of showers Wednesday night (0.15 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Thursday, just partly cloudy Thursday night highs 58-47 lows 47-42. Partly cloudy Friday, mostly cloudy with a good (50%) chance of rain Friday night, then a (50%) chance of showers Saturday through Monday highs 52-55 lows 39-42. (seasonal averages high 54 low 42)
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Forecast for the Cascades of Lane County: A mix of clouds and sun and just a bit warmer today, mostly cloudy tonight, mostly cloudy with a slight (20%) chance of rain Wednesday AM, rain in the afternoon, cloudy with evening showers, a good (50%) chance of rain and snow showers late Wednesday night, mostly cloudy with a (30%) chance of rain and snow showers Thursday, then just partly cloudy Thursday night free air freezing level 5,000 ft. rising to 7,500 ft. this afternoon, 10,000 ft. rising to 11,000 ft. late tonight, snow level above 8,000 ft. Wednesday, 6,500 ft. falling to 5,000 ft. late Wednesday night, 6,500 ft. Thursday, then free air freezing level 6,500 ft. Thursday night highs 50-46 lows 34-30. A mix of clouds and sun Friday, mostly cloudy with rain and snow likely (60%) at night, rain and snow showers likely (70%) Saturday through Sunday, a good (50%) chance of rain and snow showers Monday free air freezing level 6,500 ft. Friday, snow level 5,000 ft. Friday night, 3,500 ft. Saturday and Saturday night, 2,500 ft. Sunday, then 3,000 ft. Sunday night and Monday highs 52-35 warming to near 40 Monday lows 30-22.
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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 Eugene Daily News.com.
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