________________
Here is my new weekly weather quiz question. What is a “lahar.” We’ve had an answer posted that was not correct, but it was in the correct area. 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 FREEZE ADVISORY IS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING FOR THE KLAMATH BASIN. A RED FLAG WARNING IS IN EFFECT FOR ALL OF WESTERN OREGON EASTWARD TO THE CASCADE FOOTHILLS AND THE NATIONAL FORESTS FOR WINDS AND LOW RELATIVE HUMIDITY.
________________
A high pressure ridge (Shaded “Arch” shape with blue arrows) is setting up over the Gulf of Alaska in such a way as to send cold Canadian air our way. We’ll have frosty nights followed by pleasant days with sunshine and average temperatures. The high will push a frontal system from northeast to southwest pushing the cooler air through the “back door”at us.
________________
_______________
Forecast for the Umpqua Basin including Roseburg: Sunny and warm today, sunny and a bit cooler Thursday, clear both nights, sunny and a bit warmer Friday, then clear Friday night highs 78-75 lows 38-42. Partly cloudy and cooler Saturday, partly cloudy Saturday night, partly cloudy with a slight (20%) chance of showers Sunday, mostly clear with a slight (20%) chance of showers Sunday night, sunny Monday (Columbus Day), mostly clear with a slight (20%) chance of showers Monday night, then sunny Tuesday highs 70-75 cooling to 72 Tuesday lows near 43. (seasonal averages high 72 low 47)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Sunny today, clear tonight, sunny with areas of coastal fog Thursday afternoon, mostly clear with areas of fog late Thursday night and Friday AM, sunny Friday afternoon, then partly cloudy Friday night highs 65-60 lows near 43. Partly cloudy Saturday and Saturday night, partly cloudy with a slight (20%) chance of showers Sunday, mostly clear with a slight (20%) chance of showers Sunday night, partly cloudy with a slight (20%) chance of showers Monday (Columbus Day), partly cloudy with a slight (20%) chance of showers Monday night, then partly cloudy Tuesday highs 63-56 lows near 45. (seasonal averages high 63 low 47)
________________
Forecast for the Cascades of Lane County: Sunny today and Thursday with clear skies at night, mostly sunny Friday, then mostly clear Friday night free air freezing level 12,000 ft. rising to 13,000 ft. today, 13,000 ft. tonight and Thursday afternoon, 12,000 ft. rising to 13,000 ft. late Thursday night, 12,000 ft. Friday afternoon, then 11,000 ft. Friday night highs 58-62 lows 33-39 . Mostly sunny and warmer Saturday, partly cloudy Saturday night and Sunday AM, mostly sunny but cooler Sunday afternoon, partly cloudy Sunday night, mostly sunny in the AM, partly cloudy Monday afternoon (Columbus Day) and Monday night, then mostly sunny Tuesday free air freezing level 11,000 ft. Saturday through Monday night, and 10,000 ft. Tuesday highs 67-60 lows near 39.
________________
**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
______________