________________
It’s time for my new weekly weather quiz question. Here it is. About 7,700 years ago Oregon’s 12,000 ft. tall Mt. Mazama erupted and its caldera collapsed. The caldera filled with water to become the second deepest (1,958 ft.) lake in North America. How long did it take to fill the caldera and form what we know as Crater Lake? 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.
________________
For the rest of the week into the weekend another upper air trough of low pressure (“U” shape on yellow line) off shore and one frontal system will move through tonight, then a series of frontal systems like this one will keep the chance of precipitation around. Mountain snow levels will fall well below pass levels making for slippery roadways by Friday. A REMINDER: We will go back to Standard time NEXT WEEKEND (Fall back one hour officially at 2 AM Sunday November 6th).
________________
Your Saturday College Football preview weather forecasts:
Beavers vs Stanford at Reser Stadium Kickoff 12:30 PM – Cloudy with rain likely, temperature 42 warming to near 50 by the end of the game. You will need clothing that is both warm and water resistant.
Ducks vs Washington in Seattle: Kickoff 7:30 PM – Rain likely, temperature holding near 46 throughout the game, then cooling down. You will need clothing that is both warm and water resistant.
________________
Here are your detailed forecasts.**
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Increasing clouds with rain beginning this evening, showers late tonight (0.35 in. of rain possible), showers with a slight (20%) chance of isolated thunderstorms (small hail possible) in the afternoon (0.25 in. of rain possible), a good (50%) of showers Thursday night, a mix of clouds and sun with a slight (20%) chance of showers Friday afternoon, mostly cloudy with a (30%) chance of showers Friday night, rain likely (60%) Saturday, then rain Saturday night lows 36-29 back to near 39 Saturday night highs 50-46. Mostly cloudy with showers likely (60%) Sunday, a good (50%) chance of showers Sunday night, a (40%) chance of showers Monday, a good (50%) chance of showers Monday night, rain likely (60%) Tuesday, a good (50%) chance of rain Tuesday night, then mostly cloudy with rain likely (60%) Wednesday highs near 50 lows near 40. (seasonal averages high 57 low 39)
_______________
Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (40%) chance of rain this evening, rain late tonight (snow level 3,500 ft), showers (under 0.20 in. of rain possible) and cooler Thursday (AM snow level 3,000 ft.), a (40%) chance of evening showers, showers likely (60%) late Thursday night (snow level 3,000 ft. rising to 3,500 ft), mostly cloudy with a slight (20%) chance of showers Friday (snow level 3,000 ft. falling to 3,500 ft. in the afternoon), a slight (20%) chance of rain and snow showers Friday evening, then a slight (20%) chance of showers late Friday night (snow level 3,000 ft.), rain likely (60%) Saturday AM, rain Saturday afternoon and night lows 38-34 warming to near 40 Saturday night highs 45-49 cooling to near 40 Saturday night. Mostly cloudy with showers likely (60%) Sunday, mostly cloudy with a good (50%) chance of showers Sunday night through Monday night, mostly cloudy with a (40%) chance of rain Tuesday, then rain likely (60%) Tuesday night and Wednesday highs 49-53 lows near 40. (seasonal averages high 59 low 42)
________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Increasing clouds this evening with a (40%) chance of rain, rain late this evening and tonight (0.50 in. of rain possible), coastal showers and isolated thunderstorms with showers inland Thursday (under 0.10 in. of rain possible), a good (50%) chance of coastal showers and isolated thunderstorms in the evening then coastal showers likely (60%) with isolated thunderstorms late Thursday night (under 0.10 in. of rain possible), a (40%) chance of evening showers inland then showers likely (60%) late Thursday night, mostly cloudy with a slight (20%) chance of showers Friday, a (30%) chance of showers Friday night, then mostly cloudy with rain Saturday and Saturday night lows 42-44 highs 52-55. Mostly cloudy with showers likely (60%) Sunday, a good (50%) chance of showers Sunday night through Monday night, rain likely (60%) Tuesday, then mostly cloudy with rain Tuesday night and Wednesday highs near 53 lows near 44. (seasonal averages high 58 low 45).
_________________
Forecast for the Cascades of Lane County: Increasing clouds to cloudy this evening with rain or snow beginning, snow showers late tonight (3-5 in. of snow possible, 0.50 in. of rain possible), showers Thursday (1-3 in. of snow possible, 0.25 in. of rain possible), showers likely (60%) Thursday night (1-2 in. of snow possible, 0.10 in. of rain possible), a slight (20%) chance of showers Friday, a (30%) chance of rain and snow showers Friday night, rain or snow likely (60%) Saturday, then mostly cloudy with rain or snow Saturday night snow level 7,000 ft. falling to 4,000 ft. late tonight, 3,500 ft. Thursday, 3,000 ft. Thursday night through Friday night, 3,500 ft. Saturday and Saturday night lows 28-23 warming to 28 highs near 33. Mostly cloudy with showers likely (60%) Sunday, cloudy with a good (50%) chance of rain and snow showers Sunday night, a (40%) chance of showers Monday, a good (50%) chance of rain or snow Monday night, then rain or snow likely (60%) Tuesday through Wednesday snow level 4,000 ft. Sunday through Wednesday highs 32-35 lows 26-30.
________________
**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.
________________