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Today is your last day this week to win. Here is my weekly weather quiz question. What is the “Pacific Decadal Oscillation?” 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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Another upper level trough of low pressure (shaded “U” shape) has moved through Oregon as cold high pressure (shaded “Arch shape”) moves toward the Pacific Northwest. The next frontal system can be seen as it moves down from the North bringing colder air with it. High pressure at the surface (blue”H” offshore) and aloft will take over next week bringing sunshine and dry weather.
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Advisories: A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA-I-5 CORRIDOR, AND THE CENTRAL WILLAMETTE VALLEY INCLUDING SALEM. A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 10 AM SATURDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy with AM fog, a slight (20%) chance of rain and snow showers until early afternoon, partly cloudy for the rest of this afternoon, partly cloudy this evening, mostly cloudy with patchy fog late tonight, patchy fog and freezing fog Saturday AM, mostly cloudy in the afternoon, a slight (20%) chance of rain and snow showers Saturday evening, mostly cloudy wit patchy fog and freezing fog Saturday night and Sunday AM, a mix of clouds and sun in the afternoon, then partly cloudy Sunday night highs 42-38 lows near 27. Patchy AM fog and mostly cloudy Monday AM, partly cloudy in the afternoon and Monday night, patchy AM fog and partly cloudy Tuesday and Tuesday night, AM fog, partly cloudy Wednesday, then just partly cloudy Wednesday night and Thursday highs 43-50 lows 30-35. (seasonal averages high 47 low 34)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain and snow showers likely (60%) this AM, a good (50%) chance of rain and snow showers this afternoon (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 900 ft.), partly cloudy this evening, mostly cloudy with a slight (20%) chance of rain and snow showers tonight (under 0.10 in. of rain possible, snow level 1,000 ft. falling to 100 ft.), patchy fog and freezing fog late at night and early Saturday AM, mostly cloudy with a slight (20%) chance of AM snow showers, mostly cloudy Saturday afternoon, a slight (20%) chance of rain and snow showers Saturday night, patchy fog and freezing fog late at night and Sunday AM, then mostly cloudy in the afternoon, partly cloudy with areas of patchy fog and freezing fog Sunday night highs 40-44 lows 29-22 warming to 26 Sunday night. Partly cloudy with patchy AM and late night fog and freezing fog Monday through Tuesday night, early AM and late night fog and freezing fog Wednesday, mostly sunny in the afternoon and mostly clear at night, AM fog and freezing fog then just partly cloudy Thursday highs 45-52 lows 30-35. (seasonal averages high 49 low 36)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: AM coastal showers likely (60%) and a good (50%) chance of rain and snow showers this afternoon while AM rain and snow showers likely (70%) inland with a good (50%) chance of rain and snow showers this afternoon (0.10 in. of rain possible, snow level 1,500 ft.), partly cloudy with a (40%) chance of coastal showers this evening and a (30%) chance of rain late tonight while a slight (20%) chance of evening showers inland and a slight (20%) chance of rain and snow late tonight (snow level 1,500 ft.), a slight (20%) chance of AM rain and snow showers with a (30%) chance of rain inland Saturday while a (30%) chance of coastal showers (snow level 900 ft.), a (30%) chance of coastal showers while slight (20%) chance of evening showers and a (40%) chance of rain and snow inland Saturday night, mostly cloudy Sunday, then partly cloudy Sunday night highs 44-47 lows 37-32 warming to 36 Sunday night. Partly cloudy Monday through Thursday highs 48-53 lows near 37-40. (seasonal averages high 51 low 40)
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Forecast for the Cascades of Lane County: Mostly cloudy with a (40%) chance of snow showers this AM until early afternoon, partly cloudy with a slight (20%) chance of snow showers this afternoon, a slight (20%) chance of evening snow showers, partly cloudy tonight, just mostly Saturday, a slight (20%) chance of snow showers at night, partly cloudy Sunday and Sunday night snow level at the surface today and tonight, free air freezing level at the surface Saturday night, snow level at the surface Sunday, then free air freezing level at the surface Sunday night highs 25-32 lows 13-16. Partly cloudy Monday and Monday night, mostly sunny Tuesday Wednesday, and Thursday with mostly clear skies each night free air freezing level 3,500 ft. Monday, 6,500 ft. Monday night, 8,000 ft. Tuesday, then 10,000 ft. Tuesday night through Thursday highs 33-45 lows 23-27.
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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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