_______________
Here is my new weekly weather quiz question. What is an “Omega High?” 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.
________________
Low pressure trough centered offshore.
A frontal system pushed through Oregon bringing the chance of rain that will taper off late today. High pressure (Shaded “Arch” shape) sliding eastward to the coast will dry us out for a short time late today and Tuesday. Upper level low pressure (Shaded “U” shape) and another frontal system will slide toward us Thursday increasing the rain chances. See the pattern here of frontal systems (this one shown on Saturday) that will march through the Pacific Northwest.
________________
Advisories: A FREEZE WARNING IS IN EFFECT UNTIL 8 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST AND THE SOUTH OREGON COAST. A FROST ADVISORY IS IN EFFECT UNTIL 8 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST AND THE SOUTH OREGON COAST.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with patchy fog this AM, partly cloudy this afternoon, mostly cloudy tonight, a mix of clouds and sun in the afternoon, cloudy with a (40%) chance of rain late Wednesday night, rain likely (60%) Thursday, then mostly cloudy with a (40%) chance of rain Thursday night highs 50-52 lows 35-40. Mostly cloudy with a slight (20%) chance of rain Friday, partly cloudy at night, a mix of clouds and sun with a slight (20%) chance of rain Saturday, mostly cloudy with a good (50%) chance of rain Saturday night, a good (50%) chance of showers Sunday, then partly cloudy with a slight (20%) chance of showers Sunday night and Monday highs 58-54 lows 42-36. (seasonal averages high 53 low 35)
Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this AM with patchy fog and freezing fog, partly cloudy this afternoon, mostly cloudy with a slight (20%) chance of rain late tonight, mostly cloudy with a slight (20%) chance of showers Wednesday (AM snow level 2,500 ft.), a (40%) chance of rain Wednesday night, cloudy with a (40%) chance of rain Thursday AM, rain likely (60%) in the afternoon, then mostly cloudy with a slight (20%) chance of rain Thursday night highs 52-57 lows 35-42. Areas of AM fog, mostly cloudy and warmer with a slight (20%) chance of showers Friday afternoon, mostly cloudy at night, a slight (20%) chance of rain Saturday, showers likely (60%) at night, mostly cloudy with a (40%) chance of showers Sunday, partly cloudy Sunday night, then just partly cloudy Monday highs 65-57 lows 44-38. (seasonal averages high 55 low 38)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy with patchy fog and freezing fog inland this AM, partly cloudy this afternoon, mostly cloudy with with a slight (20%) chance of rain tonight (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Wednesday AM (under 0.10 in. of rain possible), cloudy with a good (50%) chance of rain Wednesday night, coastal rain likely (70%) while a (40%) chance of AM inland rain and rain likely (60%) Thursday afternoon, then mostly cloudy with a (40%) chance of rain late Thursday night highs 50-55 lows 36-45. AM fog, mostly cloudy and warmer with a slight (20%) chance of showers Friday, just mostly cloudy Friday night, a slight (20%) chance of rain Saturday, showers likely (70%) Saturday night, mostly cloudy with a (40%) chance of showers Sunday, then partly cloudy Sunday night and Monday highs 59-52 warming to 56 Monday lows 45-40. (seasonal averages high 53 low 41)
________________
Forecast for the Cascades of Lane County: A mix of clouds and sun and a bit warmer today, mostly cloudy tonight, partly cloudy Wednesday, mostly cloudy with a (40%) chance of rain and snow late Wednesday night, cloudy with rain and snow likely (60%) Thursday AM, a good (50%) chance of rain and snow Thursday afternoon, then mostly cloudy with a (30%) chance of rain Thursday night free air freezing level at the surface rising to 4,000 ft. this afternoon, 5,000 ft. tonight, 4,000 ft. rising to 5,000 ft. Wednesday, snow level 4,500 ft. Wednesday night, 5,000 ft. rising to 6,000 ft. Thursday, then 6,500 ft. Thursday night highs 39-42 lows 25-30. Mostly cloudy with a slight (20%) chance of rain Friday, just partly cloudy Friday night, a mix of clouds and sun Saturday, mostly cloudy with rain likely (60%) at night, a good (50%) chance of rain and snow showers Sunday, partly cloudy with a (40%) chance of rain and snow showers at night, then partly cloudy with a slight (20%) chance of rain and snow showers Monday snow level 8,000 ft. Friday, free air freezing level 9,000 ft. Friday night and Saturday, snow level 7,000 ft. Saturday night, 4,500 ft. Sunday, then 5,500 ft. Sunday night and Monday highs 48-43 lows near 30.
________________
**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.
________________