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This your last chance to win this week. Here is my weekly weather quiz question. What is an “Omega High?” 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 (Shaded “Arch” shape) will keep the rain away for your Friday and allow the warm air being pushed in by the warm portion (red line with semicircles on it) of a frontal system that has moved through. March has come in like a lamb for sure. The cold front portion will slide in Saturday returning the cooler air and rain. An upper level trough of low pressure (Shaded “U” shape) will bring us back to the rainy weather as it replaces the ridge. What looks to be a strong storm system will approach the Pacific Northwest Monday and move through Tuesday continuing the chance of rain.
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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: Partly cloudy this evening, mostly cloudy with patchy fog late tonight and Saturday AM, cloudy with a good (50%) chance of rain Saturday afternoon (0.10 in. of rain possible), evening rain, showers late Saturday night (0.25 in. of rain possible), a slight (20%) chance of AM showers, partly cloudy Sunday afternoon through Monday, then mostly cloudy with rain likely (70%) at night lows 45-32 warming to 37 Monday night highs 55-50 warming to 55 Monday. Mostly cloudy with rain Tuesday, cloudy with a good (50%) chance of showers at night, showers likely (60%) Thursday, a (30%) chance of showers at night, then partly cloudy with a slight (20%) chance of showers Friday highs 49-52 lows near 38. (seasonal averages high 54 low 36)
Forecast for the Umpqua Basin including Roseburg: Partly cloudy this evening, mostly cloudy late tonight, mostly cloudy with a good (50%) chance of rain Saturday afternoon (under 0.10 in. of rain possible), evening rain, rain and snow showers likely (60%) late Saturday night (0.10 in. of rain possible, snow level 2,000 ft. late at night), mostly cloudy with a (40%) chance of rain and snow showers Sunday (snow level 2,000 ft.), then just partly cloudy Sunday night lows 45-34 warming to 30 Monday highs 59-53 warming to 60 Monday. Partly cloudy Monday, mostly cloudy with rain likely (70%) Monday night, cloudy with rain Tuesday and in the evening, rain and snow late Tuesday night, rain and snow showers likely (70%) Wednesday, mostly cloudy with a good (50%) chance of showers at night, then mostly cloudy with showers likely (60%) Thursday highs 56-50 lows 38-35. (seasonal averages high 56 low 38)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy with patchy fog late tonight and Saturday AM, cloudy with likely (70%) rain Saturday afternoon (under 0.10 in. of rain possible), evening rain, showers likely (70%) late Saturday night (0.15 in. of rain possible), partly cloudy with a slight (20%) chance of AM coastal showers while mostly cloudy with a slight (20%) chance of AM inland showers and partly cloudy in the afternoon, mostly clear with patchy fog late Sunday night and Monday AM, sunny Monday, then mostly cloudy with rain Monday night lows 45-34 warming to 42 Monday night highs 54-49 warming to 53 Monday. Mostly cloudy with rain Tuesday and Tuesday night, showers Wednesday, showers likely (60%) Wednesday night and (70%) Thursday, mostly cloudy with a good (50%) chance of showers Thursday night, then partly cloudy with a slight (20%) chance of showers Friday highs 52-48 lows near 38. (seasonal averages high 54 low 41)
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Forecast for the Cascades of Lane County: Partly cloudy tonight, cloudy with a good (50%) chance of rain Saturday afternoon (0.10 in. of rain possible), rain and snow in the evening, rain and snow showers and colder late Saturday night, cloudy with a (40%) chance of AM snow showers, a mix of clouds and sun with a slight (20%) chance of snow showers and colder Sunday afternoon, partly cloudy Sunday night and Monday, then mostly cloudy with a good (50%) chance of rain and snow Monday night free air freezing level 10,000 ft. tonight, snow level 6,500 ft. Saturday, 5,000 ft. falling to 3,000 ft. late Saturday night, at the surface Sunday, free air freezing level 4,500 ft. Sunday night, 6,500 ft. rising to 7,000 ft. Monday afternoon, snow level 5,000 ft. Monday night lows 33-23 warming to 26 Monday night highs 45-35 warming to 45 Monday. Mostly cloudy with rain and snow likely (70%) Tuesday, rain and snow showers at night, rain and snow showers likely (60%) Wednesday and Wednesday night, a good (50%) chance of snow showers Thursday, a (40%) chance of rain and snow showers Thursday night, then a mix of clouds and sun with a slight (20%) chance of rain and snow showers Friday snow level 4,000 ft. Tuesday and Tuesday night, 3,000 ft. Wednesday, 2,500 ft. Wednesday night and Thursday, then 3,000 ft. Thursday night and Friday highs 35-32 warming to 35 Friday lows near 25.
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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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