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Here is my weekly weather quiz question. What does the following description actually describe? “Very energetic electromagnetic radiation with wavelengths intermediate between 0.01 and 10 nanometers (0.1-100 Angstroms) or between gamma rays and ultraviolet radiation. Essentially all of them from space are absorbed in the Earth’s upper atmosphere.” 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 high pressure ridge (the shaded “Arch” shape) is flattening (weakening) allowing a frontal system to move through returning the rain chances. That’s when low pressure (shaded “U” shape) in the Gulf of Alaska takes over sending another storm our way. Surface high pressure (Blue “H” offshore) will give us a bright and dry weekend, the first part anyway.
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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 AM WEDNESDAY ABOVE 4,000 FT. FOR THE NORTH OREGON CASCADES, NOT INCLUDING THE CASCADES OF LANE COUNTY.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with showers tonight (0.10 in. of rain possible), cloudy with a good (50%) chance of rain Wednesday (under 0.10 in. of rain possible), rain Wednesday night (0.25 in. of rain possible), AM rain, showers likely (60%) Thursday afternoon (0.15 in. of rain possible), showers likely (60%) in the evening, mostly cloudy with a good (50%) chance of showers late Thursday night (under 0.10 in. of rain possible), cloudy with patchy AM fog, a mix of clouds and sun Friday afternoon, then partly cloudy with patchy fog late Friday night lows 38-30 highs 44-47. AM fog, partly cloudy Saturday, mostly cloudy with patchy fog Saturday night, a mix of clouds and sun Sunday, then partly cloudy Sunday night through Tuesday highs 45-42 lows near 32. (seasonal averages high 50 low 35)
Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (40%) chance of showers tonight (under o.10 in. of rain possible, snow level 3,500 ft.), mostly cloudy with a slight (20%) chance of AM showers, a slight (20%) chance of rain Wednesday afternoon (under 0.10 in. of rain possible), cloudy with a (40%) chance of rain in the evening, rain late Wednesday night (0.20 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft.), rain and snow showers Thursday (0.10 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft.), evening rain and snow showers, a good (50%) chance of rain and snow showers late Thursday night (0.15 in. of rain possible, snow level 2,500 ft. falling to 2,000 ft.), mostly cloudy Friday AM, partly cloudy in the afternoon, mostly clear in the evening, then partly cloudy with patchy fog late Friday night lows 37-32 highs 52-45. Areas of AM fog, partly cloudy with areas of fog in the afternoon and back to patchy fog late at night Saturday through Tuesday, mostly cloudy with patchy fog Saturday night, partly cloudy Sunday, mostly cloudy with areas of fog at night, then just partly cloudy Monday highs 44-50 lows near 33. (seasonal averages high 52 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with coastal evening showers while evening showers likely (60%) inland and a (40%) chance of showers late tonight (under 0.10 in. of rain possible), cloudy with a slight (20%) chance of AM showers, a slight (20%) chance of rain Wednesday afternoon (under 0.10 in. of rain possible), coastal rain at night while evening rain likely (60%) inland and rain late Wednesday night (0.50 in. of rain possible) and windy (wind: S 10-20 mph increasing to S 20-30 mph with gusts to 45 mph late at night), showers and a slight (20%) chance of thunderstorms Thursday (0.35 in. of rain possible), showers and a slight (20%) chance of thunderstorms in the evening, a good (50%) chance of showers late Thursday night (0.15 in. of rain possible), mostly cloudy Friday AM, partly cloudy in the afternoon, then mostly clear Friday night lows 43-34 highs 50-48. Partly cloudy Saturday through Tuesday highs 49-52 lows near 38. (seasonal averages high 52 low 40)
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Forecast for the Cascades of Lane County: Mostly cloudy with showers tonight (0.25 in. of rain possible, 2-4 in. of snow possible), a (40%) chance of AM rain or snow, a slight (20%) chance of rain or snow Wednesday afternoon (under 0.10 in. of rain possible), cloudy with a (40%) chance of evening rain or snow, rain or snow late Wednesday night (0.25 in. of rain possible, 2-5 in. of snow possible), AM rain or snow, afternoon snow showers Thursday, evening snow showers, a good (50%) chance of showers late Thursday night, a mix of clouds and sun Friday, then partly cloudy Friday night snow level 3,500 ft. tonight, 3,000 ft. Wednesday, 3,500 ft. Wednesday night, 2,500 ft. Thursday, at the surface Thursday night, then free air freezing level Friday and Friday night lows 26-18 highs 36-29. Partly cloudy Saturday through Sunday night, then mostly sunny Monday and Tuesday with partly cloudy skies Monday night snow level at the surface Friday, free air freezing level at the surface Saturday, 4,500 ft. Saturday night, 5,500 ft. Sunday, 7,500 ft. Sunday night, 7,000 ft. Monday and Monday night, then 6,500 ft. Tuesday highs 35-42 lows 22-26.
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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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