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 has straighten out quite a bit has decreased the cloud cover. Another day of sunshine looking a lot more like Spring. There will be more clouds with slight chances of getting wet Wednesday and Thursday, drying out Friday, but then back to wet as another strong frontal system for the 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. A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 8 AM TUESDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, AND CENTRAL DOUGLAS 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: Partly cloudy with patchy fog late tonight and Tuesday AM, partly cloudy Tuesday afternoon and Tuesday night with patchy late night and early AM fog, partly cloudy Wednesday with a slight (20%) chance of showers in the afternoon, mostly cloudy with a slight (20%) chance of showers Wednesday evening, a mix of clouds and sun Thursday, then partly cloudy Thursday night lows in the low 30s highs 58-54. Partly cloudy Friday and Friday night, just mostly cloudy Saturday, then mostly cloudy with rain likely (60%) Saturday night through Monday highs 62-56 warming back to 60 Monday lows 35-42. (seasonal averages high 61 low 39)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy tonight and Tuesday AM, sunny Tuesday afternoon, partly cloudy Tuesday night, mostly cloudy with a (30%) chance of rain Wednesday (snow level 3,000 ft. rising to 3,500 ft. in the afternoon), a slight (20%) chance of showers Wednesday evening, a (30%) chance of rain and snow showers late Wednesday night (snow level 2,500 ft. falling to 1,000 ft. late), a slight (20%) chance of showers Thursday, then just partly cloudy Thursday night lows 32-37 highs 60-55. Mostly cloudy with a slight (20%) chance of showers Friday and Friday night, mostly cloudy with a good (50%) chance of rain Saturday, rain likely (60%) Saturday night through Sunday night, then mostly cloudy with a good (50%) chance of rain Monday highs hovering near 65-55 lows 40-49 falling to 45 Sunday night. (seasonal averages high 65 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy tonight through Tuesday night, mostly cloudy with a (30%) chance of rain Wednesday, mostly cloudy with a slight (20%) chance of coastal showers Wednesday night, a slight (20%) chance of evening showers inland, then a slight (20%) chance of rain and snow showers late Wednesday night inland (snow level down to 1,000 ft. late), a slight (20%) chance of showers Thursday, then just partly cloudy Thursday night lows 35-40 highs near 52. Mostly cloudy Friday and Friday night, mostly cloudy with a good (50%) of rain Saturday, rain likely (60%) Saturday night through Sunday night, then mostly cloudy with a good (50%) chance of rain Monday highs 54-57 lows 39-48. (seasonal averages high 58 low 43).
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Forecast for the Cascades of Lane County: Mostly cloudy this evening, partly cloudy with a slight (20%) chance of showers tonight, just partly cloudy Tuesday and Tuesday night, mostly cloudy with a (40%) chance of showers Wednesday and Wednesday night, a slight (20%) chance of showers Thursday, then just partly cloudy Thursday night snow level 3,000 ft. this evening, 2,500 ft. rising to 4,000 ft. Tuesday afternoon, 4,500 ft. Tuesday night, 3,000 ft. Wednesday and Wednesday night, then free air freezing level 4,500 ft. Thursday night lows 22-24 highs 45-39. A mix of clouds and sun Friday, partly cloudy Friday night, partly cloudy with a slight (20%) chance of rain Saturday, rain likely (60%) Saturday night, snow and rain likely (60-%) Sunday through Monday free air freezing level 4,500 ft. Friday, rising to 6,500 ft. Friday night, snow level 6,000 ft. Saturday and Saturday night, 3,500 ft. Sunday, then 4,500 ft. Sunday night and Monday highs 45-45 then back to 44 Monday 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.