________________
Sorry, no winner this week. Here is my weather quiz question for the last time this week. What is a supercell? Here is the correct answer. A supercell is an often dangerous convective storm with a very organized internal structure including a rotating updraft that allows it to keep going for up to several hours. Supercells are capable of producing severe weather including high winds, large hail, and strong tornadoes. They are most frequently isolated and often develop in the warm air ahead of a squall line. A supercell also usually forms in an environment with strong vertical wind shear that causes the updraft to begin rotating. I’ll have another weekly weather quiz question for you starting next Monday. 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: NONE AT THIS TIME
________________
A high pressure ridge (Shaded “Arch” shape with blue arrows over Western Canada) is bringing continued sunshine to the Pacific Northwest into next week. We’re still under the Full Harvest Moon so enjoy the bright nights. A backdoor cold front (meaning moving from northeast to southwest) will swing down between Tuesday and Wednesday. That should have just a little cooling effect.
________________
_______________
Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, sunny and a bit warmer Monday, mostly clear Monday night, partly cloudy Tuesday AM, sunny in the afternoon, mostly clear Tuesday night, mostly sunny Wednesday, then mostly clear Wednesday night lows 47-52 cooling to 40 Tuesday night and Wednesday night highs 85-74 warming to 78 Wednesday. Mostly sunny Thursday and Friday, mostly clear at Thursday night and partly cloudy Friday night and Saturday, mostly cloudy Saturday night, then mostly cloudy with a slight (20%)chance of showers Sunday highs 78-75 lows near 45. (seasonal averages high 74 low 48)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear tonight, sunny Monday, then mostly clear in the evening, partly cloudy late Monday night, mostly cloudy with patchy AM fog, mostly sunny Tuesday afternoon, mostly clear Tuesday night, mostly sunny Wednesday, then mostly clear Wednesday night lows 47-50 cooling to 45 Tuesday night and Wednesday night highs 62-64. Sunny Thursday AM fog, partly cloudy in the afternoon, partly cloudy with areas of fog Thursday night and Friday, partly cloudy Friday night, partly cloudy with a slight (20%) chance of showers Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 65-62 warming to 65 Sunday lows near 46. (seasonal averages high 63 low 48).
________________
Forecast for the Cascades of Lane County: Clear tonight, sunny and a bit warmer Monday, mostly clear Monday night, mostly sunny Tuesday, clear at night, sunny Wednesday, clear in the evening, then partly cloudy late Wednesday night free air freezing level 15,000 ft. tonight through Monday night, 13,000 ft. Tuesday, 14,000 ft. falling to 13,000 ft. Tuesday night, Wednesday, then 13,000 ft. Wednesday night lows 44-38 highs 75-63. Mostly sunny Thursday and Friday mostly clear Thursday night then partly cloudy Friday night through Sunday free air freezing level 13,000 ft. Thursday, 12,000 ft. Thursday night and Friday, then 11,000 ft. Friday night through Sunday highs 64-59 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
______________