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It’s time for a new weekly weather quiz question. What is a “gust front?” 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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Advisories: NONE AT THIS TIME.
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A high pressure ridge (“Arch” shape on yellow line) pulled away from us and a trough of low pressure (“U” shape on the yellow line) took over returning the wet weather pattern. Another high pressure ridge cleared us out. A warm front sits offshore then pushes through returning the rain to the Pacific Northwest. There will be even more frontal systems (position shown is Friday) sliding over the high pressure that will keep the showers around for the week and beyond.
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Here are your detailed forecasts.**
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with rain this evening, rain likely (60%) late tonight (0.10 in of rain possible), cloudy with rain likely (60%) Tuesday AM, a good (50%) chance of rain in the afternoon (under 0.10 in of rain possible) and Tuesday night (under 0.10 in. of rain possible), mostly cloudy with rain (0.25 in. of rain possible) Wednesday, a good (50%) chance of showers in the evening, a slight (20%) chance of showers (under 0.10 in. of rain possible) late Wednesday night with patchy fog late and Thursday AM, a slight (20%) chance of AM showers, a mix of clouds and sun in the afternoon, then mostly cloudy with a slight (20%) chance of showers Thursday night lows 44-34 highs 54-49. Mostly cloudy with a slight (20%) chance of rain Friday, cloudy with a good (50%) chance of rain Friday night, mostly cloudy with rain likely (60%) Saturday and Saturday night, rain and snow likely (60%) Sunday (snow level 1,000 ft.), a good (50%) chance of rain Sunday night, then mostly cloudy with a good (50%) chance of rain and snow Monday highs 54-46 lows 36-28. (seasonal averages high 52 low 35)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain this evening, rain likely (60%) with patchy fog late tonight (0.10 in. of rain possible), patchy AM fog, cloudy with a good (50%) chance of rain Tuesday (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of rain Tuesday night (under 0.10 in. of rain possible) with patchy fog late, patchy AM fog, rain likely (60%) Wednesday (0.10 in. of rain possible), a (30%) chance of showers and colder with patchy fog Wednesday night, mostly cloudy with patchy AM fog, mostly sunny Thursday afternoon, partly cloudy in the evening, then mostly cloudy with areas of fog Thursday night lows 43-35 highs 57-52. Patchy AM fog, mostly cloudy with a slight (20%) chance of rain Friday, a good (50%) chance of rain Friday night, rain likely (60%) Saturday, rain and snow likely (60%) and colder Saturday night and Sunday, mostly cloudy with a good (50%) chance of rain and snow Sunday night and Monday highs 58-54 lows 37-30. (seasonal averages high 54 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain this evening, rain(0.15 in. of rain possible) likely (60%) late tonight, patchy AM fog, cloudy with a good (50%) chance of rain Tuesday (0.10 in. of rain possible), mostly cloudy with a (30%) chance of rain Tuesday night (under 0.10 in. of rain possible) with patchy fog late at night and early Wednesday AM, rain likely (60%) Wednesday afternoon (0.25 in. of rain possible), mostly cloudy in the evening with a slight (20%) chance of showers in the evening, partly cloudy and patchy fog inland late Wednesday night (under 0.10 in. of rain possible), mostly cloudy Thursday AM, mostly sunny in the afternoon, partly cloudy in the evening, then mostly cloudy with patchy fog late Thursday night lows 46-38 highs 55-52. Patchy AM fog, mostly cloudy with a slight (20%) chance of rain Friday afternoon, a (30%) chance of rain and breezy Friday night, mostly cloudy with rain likely (60%) Saturday, rain and snow likely (60%) Saturday night, mostly cloudy with rain likely (60%) Sunday, a good (50%) chance of rain and snow Sunday night, then mostly cloudy with a good (50%) chance of rain Monday highs 54-45 lows 42-35. (seasonal averages high 53 low 40).
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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow this evening, occasional rain and freezing rain (1-3 in. of snow possible, 0.25 in. of rain possible) late tonight, mostly cloudy with rain likely (60%) Tuesday (0.25 in. of rain possible), cloudy with a good (50%) chance of rain Tuesday night (0.25 in. of rain possible), rain Wednesday AM, rain and snow in the afternoon, rain and snow showers likely (60%) in the evening, a (40%) chance of rain and snow showers late Wednesday night, AM clouds and a mix of clouds and sun with a slight (20%) chance of rain and snow showers Thursday afternoon, then mostly cloudy with a slight (20%) chance of rain and snow showers Thursday night snow level 5,000 ft. tonight, 7,500 ft. Tuesday, 7,000 ft. Tuesday night, 6,500 ft. falling to 5,000 ft. Wednesday afternoon, then 3,000 ft. Wednesday night and Thursday, then 4,500 ft. Thursday night lows 32-24 highs 40-36. Mostly cloudy with a good (50%) chance of rain Friday, rain and snow likely (60%) Friday night and Saturday, snow likely (60%) Saturday night through Sunday night, then mostly cloudy with a good (50%) chance of snow Monday snow level 6,000 ft. Friday, 5,000 ft. Friday night, 4,000 ft. Saturday, then at the surface Saturday night through Monday highs 42-26 warming to 32 Monday lows 23-19.
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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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