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Sorry, no winner this week. One person did come close. Here is my weekly weather quiz question for the last time. What is a “lahar.” Here is the correct answer. A lahar is a type of mudflow or debris flow composed of pyroclastic material, rocky debris, and water. The material flows down from a volcano, typically along a river valley. It is very dangerous because it’s consistency and the way it acts is very much like cement. It is liquid when it’s moving, but when it stops, it solidifies. This can cause just as much devastation as lava itself. I’ll have another weekly weather quiz question for you starting on 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.
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Advisories: A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 8 AM MONDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY. A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM MONDAY FOR THE KLAMATH BASIN.
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The notoroiusly unpredictable Draconid meteor shower peaks this year tonight through Monday morning. For more details go to Space Weather.com.
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A high pressure ridge (Shaded “Arch” shape with blue arrows) has moved to the east a bit, but still centered over western Oregon, (see blue arrows curving from the northeast) and a thermal trough of low pressure (dashed line along the Oregon coast) our weather pattern will remain stable. We’ll have chilly nights followed by pleasant days with sunshine and average temperatures for Columbus Day and beyond. It looks like we may have a chance of rain next Friday through Sunday, but that is a long way off to be very certain if it will in fact occur.
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Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, sunny and mild Monday (Columbus Day), mostly clear in the evening, partly cloudy Monday night, AM clouds, sunny and a bit cooler Tuesday, mostly clear Tuesday night, mostly sunny Wednesday, then partly cloudy Wednesday night lows 40-45 highs 72-74. Sunny Thursday, partly cloudy at night, mostly cloudy with a slight (20%) chance of showers Friday and Friday night, then mostly cloudy with a (30%) chance of showers Saturday through Sunday highs 74-67 lows near 45. (seasonal averages high 71 low 46)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy at the shore this evening and cloudy late while mostly clear this evening inland and partly cloudy late tonight, patchy AM fog and mostly cloudy at the shore while partly cloudy inland Monday (Columbus Day), partly cloudy in the evening and mostly cloudy Monday night, AM clouds then sunny in the afternoon inland Tuesday while mostly cloudy at the shore, mostly clear in the evening, mostly cloudy Tuesday night, then partly cloudy Wednesday and Wednesday night lows 43-47 highs 60-53. Sunny Thursday, partly cloudy at night, mostly cloudy with slight (20%) chance of showers Friday, mostly cloudy with a (30%) chance of showers Friday night, a (40%) chance of showers Saturday and Saturday night, then cloudy with (30%) chance of showers Sunday highs 60-65 cooling to 62 Sunday lows near 47. (seasonal averages high 62 low 47)
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Forecast for the Cascades of Lane County: Clear tonight, sunny Monday (Columbus Day), clear Monday night, sunny Tuesday, partly cloudy Tuesday night, mostly sunny Wednesday, then partly cloudy Wednesday night free air freezing level 12,000 ft. tonight, 11,000 ft. Monday through Tuesday, then 12,000 ft. Tuesday night through Wednesday night lows 36-40 highs near 64. Mostly sunny Thursday, partly cloudy at night, a mix of clouds and sun Friday, mostly cloudy with a slight (20%) chance of rain Friday night, a (30%) chance of rain Saturday and Saturday night, then mostly cloudy with a (40%) chance of rain Sunday free air freezing level 11,000 ft. Thursday through Friday, then snow level above 8,000 ft. Friday night through Sunday highs 63-53 warming to 58 Sunday lows near 40.
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**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.
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Get your local Eugene-Springfield news on-line at Eugene Daily News.com
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