Apr
18.
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Here is my new weekly weather quiz question for this week. Give it a try. Here is the question. Who created the “F” scale to determine the strength of tornadoes? Please 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 air trough of low pressure (“U” shape) moved across Oregon. A cold front moved through the Pacific Northwest Saturday giving us more rain than expected. The airflow will straighten out quite a bit and that will decrease the flow of colder air that has been coming out of the Gulf of Alaska. Low pressure rolled up the cold front that pushed through Saturday keeping the chance of showers around. The result will be slowly warming temperatures and more sunshine. So far I expect big break from the rain for your Monday and Tuesday (where have we heard that before) with slight chances of getting wet Wednesday and Thursday, dry Friday, then back to wet next weekend. The next serious frontal system should be here by next weekend.
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Advisories: A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 8 AM TUESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
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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: Patchy AM fog today, partly cloudy today and tonight, patchy AM fog, a mix of clouds and sun Tuesday, just partly cloudy Tuesday night with patchy late night and early AM fog, a mix of clouds and sun Wednesday with a slight (20%) chance of showers in the afternoon, mostly cloudy with a slight (20%) chance of showers Wednesday night highs 55-60 lows 30-34. Partly cloudy with a slight (20%) of showers Thursday and Thursday night, just partly cloudy Friday and Friday night, then mostly cloudy with a good (50%) chance of rain Saturday through Sunday highs 58-62 lows 35-44. (seasonal averages high 61 low 39)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy with a slight (20%) chance of AM rain and snow showers (snow level 2,000 ft), then just partly cloudy this afternoon through Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday AM, a slight (20%) chance of afternoon rain, a slight (20%) chance of showers Wednesday evening, then a (30%) chance of rain and snow showers Wednesday night highs 57-60 lows 32-39. Mostly cloudy with a (30%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of showers Thursday night and Friday, just mostly cloudy Friday night, mostly cloudy with rain likely (60%) Saturday through Sunday highs hovering near 56-65 lows 36-49. (seasonal averages high 65 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy today, a slight (20%) chance of a coastal shower, still partly cloudy through Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night highs near 52 lows 37-40. Mostly cloudy with a (30%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers Thursday night and Friday, just mostly cloudy Friday night, partly cloudy with a good (50%) of rain Saturday, then mostly cloudy with rain likely (60%) Saturday night and Sunday highs 52-60 lows 38-48. (seasonal averages high 58 low 43).
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Forecast for the Cascades of Lane County: Partly cloudy today with a slight (20%) chance of snow showers, mostly cloudy with a slight (20%) chance of snow showers tonight, a mix of clouds and sun Tuesday, just partly cloudy Tuesday night, mostly cloudy with a slight (20%) chance of AM snow showers, a (40%) chance of rain and snow Wednesday afternoon, mostly cloudy with a (30%) chance of rain and snow showers Wednesday night snow level at the surface today and tonight, 3,000 ft. Tuesday, 3,500 ft. Tuesday night 3,000 ft. Wednesday, and 3,500 ft. Wednesday night highs 39-45 lows 24-30. Mostly cloudy with a (40%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of rain and snow showers Thursday night through Friday night, partly cloudy with a good (50%) chance of rain Saturday, then a good (50%) chance of rain Saturday night and Sunday snow level 3,000 ft. Thursday, 4,500 ft. Thursday night, 4,000 ft. Friday, 4,500 ft. Friday, night, rising to 5,000 ft. Saturday, 5,500 ft. Saturday night, then 5,000 ft. Sunday highs 42-46 lows 24-30.
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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.