_______________
Look for my Eugene Daily News column A Bolt From Out Of The Blue and check out my newest column “TBN ASAP” that will be available today.
________________
Here is my new weekly weather quiz question. Please define the term “backdoor cold front.” 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.
________________
Upper level high pressure (Shaded “Arch” shape with blue arrows) has cleared us out for the time being returning the sunshine. An upper level low (Shaded “U” shape) will take over pushing a frontal system at the Pacific Northwest bringing rain and dropping temperatures drastically by Tuesday.
________________
Advisories: None at this time.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Some AM clouds, mostly sunny and warmer today, partly cloudy this evening, mostly cloudy with rain likely (60%) by late tonight (under 0.10 in. of rain possible), mostly cloudy with AM rain, showers and a lot cooler with some small hail possible Tuesday afternoon (0.25 in. of rain possible), and Tuesday night (0.25 in. of rain possible), and again Wednesday (0.35 in. of rain possible), then showers with small hail possible in the evening and showers likely (70%) Wednesday night highs 75-54 lows 45-40 warming to 44 Wednesday night. Mostly cloudy with showers likely (70%) Thursday through Friday, a (40%) chance of showers Friday night, a mix of clouds and sun with a (30%) chance of showers Saturday, partly cloudy with a slight (20%) chance of showers Saturday night, then partly cloudy with a (30%) chance of showers Sunday highs 59-68 lows near 45. (seasonal averages high 68 low 44)
________________
Forecast for the Umpqua Basin including Roseburg: Sunny and warmer today, mostly clear this evening, becoming partly cloudy with a good (50%) chance of showers late tonight, cloudy with a (40%) chance of AM rain, rain and snow showers and cooler Tuesday afternoon (0.20 in. of rain possible), evening showers, rain and snow showers at night (snow level 3,000 ft. falling to 2,500 ft. late at night, 0.15 in. of rain possible), rain and snow showers Wednesday AM, showers in the afternoon (snow level 2,500 ft. rising to 3,500 ft. in the afternoon, 0.30 in. of rain possible), then cloudy with showers likely (70%) at night highs 79-52 lows 48-40 warming to 45 Wednesday night. Mostly cloudy with showers likely (60%) Thursday through Friday (warmer Friday), a (30%) chance of showers Friday night, then mostly cloudy with a slight (20%) chance of showers Friday night through Sunday highs 58-75 lows 46-50. (seasonal averages high 71 low 48)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Patchy AM fog, sunny and warmer this afternoon, mostly clear this evening, mostly cloudy with rain likely 60%) late tonight, AM rain Tuesday (under 0.10 in. of rain possible), showers Tuesday afternoon (0.45 in. of rain possible, 0.35 in. possible at night, 0.50 in. possible Wednesday) through Wednesday night highs 60-53 lows 46-44 warming to 47 Wednesday night. Mostly cloudy with showers Thursday, showers likely (60%) at night and Friday, a (40%) chance of showers Friday night, then mostly cloudy with a slight (20%) chance of showers Saturday through Sunday highs 56-62 lows near 49. (seasonal averages high 59 low 48)
________________
Forecast for the Cascades of Lane County: Mostly sunny and warmer today, partly cloudy this evening, mostly cloudy with a (30%) chance of shower late tonight, mostly cloudy with AM rain, showers and cooler Tuesday afternoon, showers and colder Tuesday night with showers and small hail possible, mostly cloudy with rain and snow showers Wednesday, then rain and snow showers likely (60%) at night free air freezing level 12,000 ft. today, snow level above 8,000 ft. tonight, snow level above 8,000 ft. falling to 6,000 ft. Tuesday afternoon, 4,500 ft. falling to 3,000 ft. late at night and Wednesday, then 4,000 ft. Wednesday night highs 66-35 lows 39-27 warming to near 30 Wednesday night. Mostly cloudy with rain and snow showers likely (60%) Thursday through Friday, a (30%) chance of rain and snow showers Friday night, a mix of clouds and sun with a (30%) chance of showers Saturday, mostly cloudy with a (30%) chance of showers at night, then a mix of clouds and sun with a slight (20%) chance of showers Sunday snow level 4,500 ft. Thursday, 5,000 ft. at night, 4,500 ft. Friday, 5,500 ft. Friday night, 6,000 ft. Saturday, 8,000 ft. at night, then 7,000 ft. Sunday highs 42-52 lows 32-36.
________________
**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.
________________