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Check out my latest EDN Weather Or Not Column Man Or Fromage, It Catches Your Eye.
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Here is my new weekly weather quiz question. What is a “Sun Dog?” 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 following the ridge) will move up sitting offshore as a new frontal system slides in Wednesday (position shown is Thursday) bringing us a slight chance of showers. That upper trough will hang around long enough to keep the slight chance of showers around for most of the rest of the week. A weak upper level high (Flat “Arch” shape in blue arrows) will try unsuccessfully to clear us a bit for the weekend as another low (“U” shape) moves in off the Washington and Oregon coasts. So the slight chance of showers will be enhanced by a slight chance of a thunderstorm Saturday afternoon.
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The Grass Pollen Count has gone through the roof and is listed at Very High at 487 according to Oregon Allergy Associates.
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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 late tonight, cloudy Tuesday AM, a mix of clouds and sun a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night, a (40%) chance of showers Thursday, then a slight (20%) chance of showers Thursday night lows near 45 highs near 67. Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy in the afternoon and Friday night, a mix of clouds and sun Saturday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night, a mix of clouds and sun with a slight (20%) chance of showers Sunday, then mostly cloudy with a slight (20%) chance of showers Sunday night and Monday highs 70-75 cooling to near 70 Monday lows 46-50. (seasonal averages high 72 low 47)
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Forecast for the Umpqua Basin including Roseburg: Mostly clear this evening, mostly cloudy late tonight, mostly cloudy with a slight (20%) chance of showers Tuesday AM, partly cloudy in the afternoon and evening, mostly cloudy Tuesday night, cloudy Wednesday AM and partly cloudy in the afternoon with a slight (20%) chance of showers, mostly cloudy with a slight (20%) chance of showers Wednesday night and Thursday, then just mostly cloudy Thursday night lows 50-47 highs 70-68. Partly cloudy Friday and Friday night, mostly cloudy Saturday AM, partly cloudy in the afternoon and evening, mostly cloudy with a slight (20%) chance of showers late Saturday night, mostly cloudy with a slight (20%) chance of thunderstorms Sunday and Sunday night, then mostly cloudy with a slight (20%) chance of showers Monday highs 75-80 cooling to near 74 Monday lows near 50. (seasonal averages high 74 low 51)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear this evening, mostly cloudy late tonight, mostly cloudy with a slight (20%) chance of showers Tuesday, partly cloudy late afternoon and evening, mostly cloudy late Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday through Thursday, then just mostly cloudy Thursday night lows 50-47 highs near 62-60. Mostly cloudy Friday through Saturday, a slight (20%) chance of showers Saturday night and Sunday, a slight (20%) chance of thunderstorms Sunday evening, then mostly cloudy with a slight (20%) chance of showers late Sunday night and Monday highs 60-64 lows near 50. (seasonal averages high 61 low 50)
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Forecast for the Cascades of Lane County: Partly cloudy tonight, a mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy in the evening, mostly cloudy Tuesday night, a mix of clouds and sun with a slight (20%) chance of showers Wednesday, mostly cloudy with a (30%) chance of evening showers, a slight (20%) chance of showers late Wednesday night, mostly cloudy with a (40%) chance of showers Thursday, a (30%) chance of showers in the evening, then then partly cloudy with a slight (20%) chance of showers Thursday night free air freeing level 13,000 ft. falling to 10,000 ft. tonight, snow level above 8,000 ft. falling to 7,000 ft. Tuesday afternoon, free air freezing level 8,000 ft. at night, snow level 7,000 ft. Wednesday, 6,000 ft. Wednesday night and Thursday, then 7,000 ft. Thursday night lows 38-34 highs 54-52. Partly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy in the afternoon and Friday night, a mix of clouds and sun with a slight (20%) chance of showers and thunderstorms Saturday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late Saturday night, a mix of clouds and sun Sunday with a slight (20%) chance of AM showers, a slight (20%) chance of showers and thunderstorms Sunday afternoon and evening, a slight (20%) chance of showers Sunday night, then a mix of clouds of sun Monday with a slight (20%) chance of AM showers, then a (30%) chance of showers and a slight (20%) chance of thunderstorms Monday afternoon snow level 7,500 ft. Friday AM, free air freezing level 10,000 ft. in the afternoon, 10,000 ft. rising to 11,000 ft. late Friday night and Saturday AM, snow level above 8,000 ft. Saturday afternoon through Monday highs 59-62 cooling to near 57 Monday lows 36-40.
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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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