Apr
21.
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Here is my weather quiz question for this week. Just one more day left this week to win. 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 and high pressure (“arch” shape) behind it will clear out the clouds and rain for Friday, but then back to wet as a low pressure trough and a frontal system will return the rain for Sunday.( If the clouds clear out in time and the fog hasn’t formed yet, you may be able to see the annual Lyrid meteor shower early Friday morning. As many as 20 meteors per hour may be visible, although visibility will be reduced by bright moonlight. The best time to look is Friday morning during the hours before dawn and make sure you are away from city lights.) Another frontal system move in early next week so it looks like the Spring rains will continue. Sorry, but you’ll need an umbrella or a coat to protect your Easter outfit for “Sunrise Services” and the rest of the day Easter Sunday. It might be a good idea to have Easter egg hunts indoors if possible.
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Advisories: A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY. A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST, 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: Partly cloudy with a slight (20%) chance of showers this evening, patchy fog late tonight and Friday AM, partly cloudy and warmer Friday through Saturday, mostly cloudy with a slight (20%) chance of showers Saturday evening, a good (50%) chance of showers Saturday night, then showers likely (60%) Sunday and Sunday night lows 30-44 highs 60-65 cooling to 58 Sunday. Mostly cloudy with showers likely (60%) Monday, mostly cloudy with a good (50%) chance of showers Monday night and Tuesday, a (40%) chance of showers Tuesday night, a (40%) chance of rain Wednesday, then mostly cloudy with a (40%) chance of showers Wednesday night and Thurday highs 58-55 lows near 40. (seasonal averages high 62 low 39)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this evening, clearing tonight, sunny Friday AM with frost, partly cloudy Friday night, mostly cloudy with a good (50%) chance of showers Saturday afternoon, showers likely (60%) Saturday night and Sunday, then showers Sunday night lows 36-49 cooling to 45 Sunday night highs 58-52. Mostly cloudy with showers Monday, a good (50%) chance of showers Monday night through Tuesday night, a good (50%) chance of rain Wednesday, then mostly cloudy with a good (50%) chance of showers Wednesday night and a (30%) chance of showers Thursday highs hovering from 57-62 lows near 42. (seasonal averages high 66 low 41)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy in the evening, clearing tonight, sunny Friday AM, partly cloudy in the afternoon and Friday night, mostly cloudy with a slight (20%) of showers Saturday afternoon, showers likely (60%) Saturday night, cloudy with a chance of showers Sunday, then showers Sunday night lows 35-47 highs 58-52. Mostly cloudy with a showers Monday, a good (50%) chance of showers Monday night through Tuesday night, a good (50%) chance of rain Wednesday, then mostly cloudy with a (40%) chance of showers Wednesday night, a (30%) chance of showers Thursday highs 52-56 lows near 44. (seasonal averages high 58 low 43).
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Forecast for the Cascades of Lane County: Mostly cloudy with showers this evening, partly cloudy late tonight, partly cloudy Friday AM, mostly sunny and warmer Friday afternoon, mostly clear at night, partly cloudy with a slight (20%) chance of showers developing Saturday afternoon, mostly cloudy with a (40%) chance of showers Saturday night (0.25 in. of rain possible), then rain and snow likely (60%) Sunday and Sunday night free air freezing level 4,000 ft. rising to 5,500 ft. Friday afternoon and Saturday, 5,000 ft. Saturday night, falling to 4,000 ft. Sunday and Sunday night lows 19-32 highs 47-55 cooling to near 40 Sunday. Mostly cloudy with rain and snow showers likely (60%) Monday and Monday night, a good (50%) chance of rain and snow showers Tuesday and Tuesday night, a (40%) chance of rain Wednesday, then mostly cloudy with a (40%) chance of rain and snow showers Wednesday night and Thursday snow level 3,000 ft. Monday, 3,500 ft. Monday night through Tuesday night, then rising to 5,000 ft. Wednesday, and falling to 4,000 ft. Wednesday night and 3,500 ft. Thursday highs 36-42 cooling to 35 by Thursday lows 25-30.
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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.