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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. A frontal system has moved through Oregon bringing more wet weather and cooler temperatures and even some thunder. High pressure (shaded “Arch” shape) will try to take over and dry us out, but will only succeed for a while Tuesday. 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: A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM TUESDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy with patchy fog late tonight and early Tuesday AM, a mix of clouds and sun and a bit warmer in the afternoon, mostly cloudy Tuesday night, cloudy with a good (50%) chance rain Wednesday AM, afternoon rain (0.40 in. of rain possible), a good (50%) chance of showers Wednesday night (0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers Thursday, then just partly cloudy Thursday night lows 37-47 cooling to 38 Thursday night highs 62-58. A mix of clouds and sun Friday, mostly cloudy with a (4o%) chance of rain Friday night, showers likely (60%) Saturday, a (40%) chance of rain at night, then mostly cloudy with a good (50%) chance of showers Sunday through Monday highs 59-54 warming to 58 Sunday lows 42-36. (seasonal averages high 59 low 39)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) chance of evening showers, areas of frost and patchy fog late at night and early Tuesday AM, mostly cloudy in the afternoon, partly cloudy Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday AM, showers in the afternoon (under 0.10 in. of rain possible) and evening, a (30%) chance of showers late Wednesday night (0.15 in. of rain possible), a slight (20%) chance of showers Thursday, then just mostly cloudy Thursday night lows 39-48 cooling to near 40 Thursday night highs 64-60. Mostly 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 rain and snow 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 a slight (20%) chance of inland showers this evening, mostly cloudy with patchy fog late tonight and Tuesday AM, mostly cloudy in the afternoon and at night, 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 mostly cloudy Thursday night lows 42-47 cooling to 42 Thursday night highs 60-53. Mostly cloudy Friday, mostly cloudy with a good (50%) chance of rain Friday night, then a (50%) chance of showers Saturday through Monday highs 50-53 lows 43-39 warming to 42 Monday. (seasonal averages high 54 low 42)
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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of rain and snow showers this evening, mostly cloudy late at night, a mix of clouds and sun and just a bit warmer Tuesday, mostly cloudy Tuesday night, mostly cloudy with a good (50%) chance of rain Wednesday AM, rain in the afternoon, cloudy with evening showers likely (60%), a good (50%) chance of showers late Wednesday night, snow level 2,500 ft. today, 3,500 ft. tonight, free air freezing level 6,000 ft. rising to 7,000 ft. Tuesday, 10,000 ft. Tuesday night, snow level above 8,000 ft. Wednesday, then 6,500 ft. Wednesday night, mostly cloudy with a (30%) chance of rain and snow showers Thursday, then just partly cloudy Thursday night lows 25-34 cooling to near 30 Wednesday night and Thursday night highs 48-50 cooling to 45 Thursday night. A mix of clouds and sun Friday, mostly cloudy with a good (50%) chance of rain and snow at night, rain and snow showers likely (70%) Saturday, a good (50%) chance of showers Saturday night and Sunday, rain and snow showers likely (60%) Sunday night, then a mix of clouds and sun with a good (50%) chance of rain and snow showers Monday free air freezing level 5,500 ft. Friday, snow level 4,500 ft. Friday, 4,000 ft. Saturday and Sunday night, 3,000 ft. Sunday, 3,500 ft. at night, then 3,000 ft. Monday highs 48-39 warming to 42 Monday lows 30-24.
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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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