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Check out my column for the Eugene Daily News “Some More Things Oregon Doesn’t Have”.
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Sorry, no winner this week. Here is my weekly weather quiz question for the last time. What is the difference between “Onshore Flow” and “Offshore Flow?” Here is the correct answer. Onshore Flow occurs when air moves from sea to land, and is usually associated wtih increased moisture. Offshore Flow occurs when air moves from land to sea, and is usually associated with dry weather. I’ll have another weekly weather quiz question for you starting Monday. 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 into the Pacific Northwest with the help of a frontal system (sliding into view from the northwest). Another frontal system will follow and then surface high pressure (Blue”H” over the ocean) combined with high pressure aloft (Shaded “Arch” shape moving toward Oregon) will keep us relatively dry for the workweek. However, next weekend has the potential of being a wet one.
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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 showers likely (70%) this AM, showers this afternoon (0.10 in. of rain possible), showers likely (70%) this evening, a good (50%) chance of showers late at night (under 0.10 in. of rain possible) and Monday (under 0.10 in. of rain possible, small hail possible), partly cloudy with a slight (20%) chance of showers evening showers and a slight (20%) chance of showers again late at night (under 0.10 in. of rain possible), a mix of clouds and sun Tuesday, then partly cloudy Tuesday night highs 50-60 lows 35-38. A mix of clouds and sun Wednesday through Saturday with mostly cloudy nights highs 60-65 lows 40-44. (seasonal averages high 60 low 39)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a good (50%) chance of rain and snow showers this AM, rain and snow showers likely (70%) this afternoon (under 0.10 in. of rain possible, snow level 2,000 ft. rising to 2,500 ft. in the afternoon), cloudy with rain and snow showers likely (60%) tonight (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft.), mostly cloudy Monday with rain and snow showers likely (60%) Monday ( 0.10 in of rain possible, 1 in. of snow possible, snow level 2,000 ft.), a slight (20%) chance of showers Monday evening, patchy frost late at night (under 0.10 in. of rain possible, snow level 3,000 ft.) and Tuesday AM and partly cloudy with a slight (20%) chance of showers and just a bit warmer Tuesday, then just partly cloudy Tuesday night highs 53-60 lows near 38. Mostly cloudy Wednesday, through Thursday, mostly cloudy Friday and Friday night, then just partly cloudy Saturday highs 64-68 lows 43-50. (seasonal averages high 62 low 42)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a (40%) chance of AM showers, showers likely (70%) this afternoon (under 0.10 in. of rain possible, AM snow level 2,000 ft.), coastal showers likely (60%) in the evening with showers likely (60%) late tonight while inland showers likely (60%) tonight (under 0.10 in. of rain possible), mostly cloudy with showers likely (60%) Monday (0.15 in. of rain possible, AM snow level 2,000 ft.), mostly cloudy with a slight (20%) chance of evening showers, partly cloudy late at night (under 0.10 in. of rain possible), partly cloudy with a slight (20%) chance of inland showers Tuesday afternoon, partly cloudy at the shore, then just partly cloudy Tuesday night highs 52-55 lows 40-42. Mostly cloudy Wednesday through Thursday, partly cloudy Thursday night, then mostly cloudy Friday through Saturday highs near 56 lows 43-48. (seasonal averages high 55 low 43)
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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers today (0.10 in. of rain possible, 2 in. of snow possible), rain and snow showers likely (70%) tonight (0.10 in. of rain possible, 1-3 in. of snow possible), a good (50%) chance of rain and snow showers Monday AM, rain and snow showers likely (60%) with possible hail in the afternoon (0.25 in. of rain possible, 2 in. of snow possible), partly cloudy with a (30%) chance of evening rain and snow showers, then just a slight (20%) chance of showers late Monday night, a mix of clouds and sun with a slight (20%) chance of rain and snow showers and just a bit warmer Tuesday, then partly cloudy with a slight (20%) chance of rain and snow showers Tuesday night snow level at the surface today, 3,000 ft. tonight, 2,500 ft. Monday, 3,500 ft. Monday night and Tuesday, then 4,500 ft. Tuesday night highs 35-40 lows 22-26. A mix of clouds and sun Wednesday through Saturday with partly cloudy to mostly cloudy skies at night free air freezing level 5,000 ft. Wednesday, 6,500 ft. Wednesday night, 6,000 ft. Thursday, 7,500 ft. Thursday night and Friday, then 9,000 ft. Friday night and Saturday highs 46-52 lows 30-33 cooling to near 30 Friday night.
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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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