________________
This is your last chance to win this week. Here is my 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 FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 9 AM SATURDAY FOR EASTERN CURRY COUNTY, AND JACKSON COUNTY. A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 9 AM SATURDAY FOR THE KLAMATH BASIN. A RED FLAG WARNING (for fire danger) IS IN EFFECT UNTIL 7 PM SATURDAY FOR THE NORTHERN HALF OF EASTERN OREGON INCLUDING THE NATIONAL FORESTS AND THE I-5 CORRIDOR FROM PORTLAND SOUTH THROUGH EUGENE-SPRINGFIELD TO COTTAGE GROVE, AND WEST OF I-5 TO THE NORTHERN HALF OF THE COAST RANGE OF OREGON FOR WINDS AND LOW RELATIVE HUMIDITY. SEE THE LATEST ON THE RED FLAG WARNINGS FROM THE NATIONAL WEATHER SERVICE.
________________
A high pressure ridge (Shaded “Arch” shape with blue arrows) has set up over the Gulf of Alaska in such a way as to send cool Canadian air our way. The airflow now will be coming from the east 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 through the weekend, Columbus Day and beyond.
________________
_______________
Forecast for the Umpqua Basin including Roseburg: Mostly clear with patchy fog tonight, patchy fog with a slight (20%) chance of rain and drizzle Saturday AM, sunny Saturday afternoon, mostly clear Saturday night, sunny Sunday, mostly clear in the evening, partly cloudy with patchy fog Sunday night and Monday AM, sunny Monday afternoon (Columbus Day), then mostly clear Monday night lows 39-43 highs 70-73. Mostly sunny Tuesday and Wednesday, mostly clear Tuesday night, partly cloudy Wednesday night, sunny Thursday, partly cloudy at night, then mostly cloudy with a slight (20%) chance of showers Friday highs 72-77 lows near 45. (seasonal averages high 71 low 47)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy inland this evening then cloudy with a slight (20%) chance of showers late at night, mostly cloudy with patchy fog and a slight (20%) chance of light rain and drizzle at the shore late tonight and Friday AM, cloudy with patchy fog and a slight (20%) chance of AM rain and drizzle inland, a slight (20%) chance of rain and drizzle at the shore with patchy lingering fog Saturday afternoon, mostly clear in the evening then mostly cloudy with patchy coastal fog at night, mostly cloudy with patchy fog and Sunday night, patchy AM fog and mostly cloudy with a slight (20%) chance of rain and drizzle, partly cloudy with a slight (20%) chance of showers Monday afternoon (Columbus Day), then mostly cloudy with a slight (20%) chance of showers Monday night lows 45-40 warming to 44 Monday night highs near 60. Partly cloudy Tuesday through Wednesday night, sunny Thursday, partly cloudy at night, then mostly cloudy with a slight (20%) chance of showers Friday highs 63-60 warming to 66 Friday lows 46-48. (seasonal averages high 63 low 47)
________________
Forecast for the Cascades of Lane County: Clear tonight, sunny Saturday and Sunday with clear nights, mostly sunny Monday (Columbus Day), then partly cloudy Monday night free air freezing level 11,000 ft. tonight through Sunday, 12,000 ft. falling to 11,000 ft. Sunday night, then 11,000 ft. Monday and Monday night lows 34-38 cooling to 36 Monday night highs 60-63. Mostly sunny Tuesday and Wednesday with partly cloudy nights, then partly cloudy Thursday through Friday free air freezing level 10,000 ft. Tuesday, 11,000 ft. Tuesday night and Wednesday, 12,000 ft. Wednesday night, then 11,000 ft. Thursday through Friday highs 60-63 falling to 57 Friday lows 37-40.
________________
**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
______________