Here is my weather quiz question for this week. What is the “Green Sky” effect? Please place your answer as a comment after the forecasts. The first person to post the correct answer will win one week of free personalized weather forecasts tailored to your needs. Good luck.
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A trough of low pressure (the shaded “U” ) is stretching south into California and a surface frontal system has moved southeastward with it our chances for getting wet. High pressure coming out of the Gulf of Alaska (the shaded “arch”) will dry us out and warm us up. Another frontal system will be pushing into the Pacific Northwest Thursday night through Friday to bring back the chance of rain. By Monday a third frontal system will be offshore ready to bring in even more rain.
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Advisories: NONE AT THIS TIME
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The Pollen Count Forecast for the Eugene-Springfield area : Trees HIGH, Grass and Weeds ABSENT. From Allergy and Asthma Research Group.
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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: A mix of clouds and sun today, partly cloudy tonight high 63 low 40. A mix of clouds and sun Wednesday, Thursday, Friday, and Saturday and partly cloudy each night highs 68-75-70-75 (to well above normal) lows 42-47. Mostly cloudy Saturday night and Sunday with a slight (20%) chance of rain low 48 high near 72. Mostly cloudy with a (30%) chance of showers Sunday night then partly cloudy with a (30%) chance of showers Monday and Tuesday lows 47-44 highs 66-61 (back to normal and below).
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) chance of showers this afternoon then mostly cloudy tonight and Wednesday morning and partly cloudy and warmer in the afternoon and at night highs 62-74 (below normal to just above normal) low 42-48. Mostly cloudy Thursday morning with partly cloudy skies and warmer Thursday afternoon high near 80 (yes 80, about 10 degrees above normal). Partly cloudy Thursday night low 45. Mostly cloudy Friday through Saturday highs 78-73 lows 42-47. Mostly cloudy with a slight (20%) chance of showers Saturday night, a (30%) chance of showers Sunday through Tuesday lows 45-50 highs 73-64.
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy today high 58. Mostly cloudy tonight and Wednesday and partly cloudy at night lows 42-45 high 62. Mostly cloudy Thursday morning and partly cloudy in the afternoon high 63. Partly cloudy Thursday night through Saturday lows 42-46 highs 60-63. Mostly cloudy with a slight (20%) chance of showers Saturday night then a (40%) chance of showers Sunday through Tuesday lows 46-49 highs 62-56.
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Forecast for the Cascades of Lane County: A mix of clouds and sun this afternoon and partly cloudy this evening with a slight (20%) chance of showers snow level 5,500 ft. low 30. A mix of clouds and sun and warmer Wednesday free air freezing level 7,500 ft. high 59. Partly cloudy Wednesday night and a mix of clouds and sun and warmer Thursday free air freezing level of 8,000 ft. Wednesday night and Thursday lows 32-39 high 66 . Partly cloudy with a slight (20%) chance of showers Thursday night through Saturday snow level 8,000 ft. lows near 40 highs 65-68. Mostly cloudy with a (30%) chance of showers Saturday night and Sunday and a (40%) chance of showers Sunday night through Tuesday snow level 8,000 ft. falling to 7,000 ft, Sunday night and Monday and 5,000 ft. Monday night and Tuesday lows 40-32 highs 57-49.
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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.