________________
Here is my weekly weather quiz question. We have all heard the word “Eureka” used when someone makes an unexpected discovery. The question is who in history is quoted shouting “Eureka” when he made a discovery and what was the discovery? 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.
________________
Advisories: A FROST ADVISORY IS IN EFFECT 1 AM UNTIL 8 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST.
________________
A trough of low pressure (“U” shape on the yellow line) is moving eastward to roll over us, then a high pressure ridge (“Arch” shape on the yellow line) will take over until the next trough approaches Friday returning the clouds and rain. Another frontal system (position shown is Friday) and one behind it will continue the threat of rain from Friday night through the weekend.
_________________
Here are your detailed forecasts.**
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy with patchy fog this AM, sunny this afternoon, mostly clear tonight with patchy fog late and Thursday AM, mostly sunny Thursday, mostly clear Thursday night, a mix of clouds and sun Friday, then becoming mostly cloudy with rain likely (60%) Friday night highs 54-64 cooling to 55 Friday lows 30-39. Mostly cloudy with a good (50%) chance of rain Saturday, rain likely (60%) Saturday night, rain Sunday, cloudy with a good (50%) chance of rain Sunday night, then mostly cloudy with rain likely (60%) Monday through Tuesday highs 53-48 warming to near 52 Tuesday lows 38-35. (seasonal averages high 55 low 36)
_______________
Forecast for the Umpqua Basin including Roseburg: Partly cloudy with patchy fog and freezing fog late early this AM, sunny in the afternoon, mostly clear tonight with patchy fog late at night and Thursday AM, sunny and just a bit warmer in the afternoon, mostly clear Thursday night, mostly cloudy with a (30%) chance of rain Friday afternoon, rain likely (60%) in the evening, then a good (50%) chance of rain late Friday night highs 50-63 lows 30-42. Cloudy and cooler with a good (50%) chance of rain Saturday, rain Saturday night, mostly cloudy with rain and snow Sunday AM, rain in the afternoon, rain and snow likely (60%) Sunday night, then mostly cloudy with rain likely (60%) Monday through Tuesday highs 58-47 warming to 54 Tuesday lows 40-34 warming to 38 Monday night. (seasonal averages high 57 low 39)
________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Sunny today, clear with areas of patchy frost late tonight and early Thursday AM, sunny Thursday afternoon, clear in the evening, partly cloudy Thursday night, mostly cloudy with a (40%) chance of AM coastal rain with rain likely (60%) Friday afternoon and a (40%) chance of inland rain for the day, then rain likely (60%) Friday evening and a good (50%) chance of rain late at night highs 53-57 cooling to 53 Friday lows 34-45. Mostly cloudy with a good (50%) chance of rain Saturday, rain likely (60%) Saturday night, rain Sunday, rain and snow likely (60%) Sunday night, then rain likely (60%) Monday through Tuesday highs 52-45 warming to 52 Sunday lows near 40. (seasonal averages high 54 low 41).
_________________
Forecast for the Cascades of Lane County: Sunny today, clear and not as cold tonight, sunny and just a bit warmer Thursday, mostly clear Thursday night, partly cloudy Friday AM, becoming mostly cloudy with a slight (20%) chance of rain in the afternoon, then rain likely (60%) Friday evening and rain and snow likely (60%) late Friday night free air freezing level at the surface rising to 6,000 ft. today, 7,000 ft. tonight, 8,000 ft. Thursday afternoon, 10,000 ft. Thursday night, 8,000 ft. Friday, then 5,000 ft. Friday night highs 38-53 cooling to near 50 Friday lows 26-38 cooling to near 30 Friday night. Cloudy with rain and snow likely (60%) Saturday and Saturday night, snow Sunday, snow showers likely (60%) Sunday night, snow likely (60%) Monday, then rain and snow likely (60%) Monday night and Tuesday snow level 5,000 ft. Saturday, 5,500 ft. falling to 3,500 ft. Saturday night, at the surface Sunday through Monday, then 3,500 ft. Monday night and Tuesday highs 42-32 warming to 36 Tuesday lows near 25.
________________
**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.
________________
Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
________________