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It’s time for  my new weekly weather quiz question. Here it is. In meteorology what are elves? Please post your answer as a comment by clicking on “no 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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The jet stream shows a trough of low pressure ( “U” shaped area) swinging through the Pacific Northwest. Additional storms will be aiming for us like this frontal system that will roll in Thursday and another behind it will bring even more rain for the weekend.

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Advisories: NONE AT THIS TIME.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with a slight (20%) chance of showers this evening, then partly cloudy late tonight, partly cloudy with a slight (20%) chance of showers Wednesday AM, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon and evening (0.10 in. of rain possible, more in thunderstorms),  a good (50%) chance of showers Wednesday night (0.10 in. of rain possible), a good (50%) chance of showers Thursday and Thursday night, showers likely (60%) Friday, then rain Friday night lows 36-42 highs near 55. Mostly cloudy with rain Saturday, rain likely (60%) Saturday night, showers likely (60%) Sunday, cloudy with a good (50%) chance of rain Sunday night and Monday, then mostly cloudy with a (40%) chance of showers Monday night and Tuesday highs 52-56 lows near 40. (seasonal  averages high 57 low 37)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with a (30%) chance of rain tonight (snow level 2,500 ft. rising to 3,000 ft. late at night), a (40%) chance of AM rain Wednesday, a good (50%) chance of rain and isolated thunderstorms Wednesday afternoon and evening (snow level 2,500 ft. rising to 3,000 ft. in the afternoon), rain late Wednesday night (snow level 3,500 ft. falling to 2,500 ft.) and breezy (wind: S 15-25 mph), a (40%) chance of AM rain and snow Thursday, rain likely (60%) with isolated thunderstorms Thursday afternoon and evening, rain and snow showers late Thursday night (snow level 3,000 ft. falling to 2,500 ft. late),  AM rain and snow showers likely (60%) Friday, then rain showers Friday afternoon and night lows 38-42 highs 57-52. Mostly cloudy with showers Saturday, showers likely (60%) Saturday night, then a good (50%) chance of showers Sunday and Sunday night, then a (40%) chance of showers Monday through Tuesday highs 58-55 lows near 40. (seasonal averages high 61 low 39)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a (30%) chance of rain tonight, cloudy with a (40%) chance of rain Wednesday AM, coastal rain likely (60%) with isolated afternoon thunderstorms, a good (50%) chance of rain  and isolated afternoon thunderstorms inland, rain likely (60%) with isolated thunderstorms Wednesday evening, rain likely (60%) late Wednesday night and breezy (wind: SE 10-15 mph increasing to S 15-25 mph late), AM rain likely (60%) Thursday, rain and isolated thunderstorms Thursday afternoon, then showers likely (60%) with isolated evening thunderstorms, showers likely (60%) Thursday night, showers likely (60%) Friday, then showers Friday night lows 40-43 highs 55-50. Mostly cloudy with showers Saturday, showers likely (60%) Saturday night, then mostly cloudy with a good (50%) chance of showers Sunday through Tuesday highs 53-56 lows 42-44. (seasonal averages high 56 low 42).

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Forecast for the Cascades of Lane County:  Mostly cloudy with a (40%) chance rain and snow showers tonight, a good (50%) chance of rain and snow showers with a slight (20%) chance of afternoon thunderstorms Wednesday, rain and snow showers late Wednesday night, rain and snow showers likely (60%) Thursday (1-3 in. of snow possible), rain and snow showers likely (60%) Thursday night and Friday, rain and snow likely (60%) Friday night snow level 3,000 ft. this evening,  2,500 ft. rising to 3,500 ft. Wednesday afternoon,  4,000 ft. Wednesday night, 3,000 ft. Thursday, 3,500 ft. Thursday night, then 3,000 ft. Friday and Friday night lows 27-22 highs 42-37. Mostly cloudy with  snow showers likely (60%) Saturday and Saturday night, a good (50%) chance of rain and snow Sunday, rain and snow likely (60%) Sunday night,  a good (50%) chance of rain and snow Monday, a good (50%) chance of rain and snow showers Monday night, then rain and snow showers likely (60%) Tuesday snow level 3,000 ft. Saturday, and Saturday night,3,500 ft. Sunday, 3,000 ft. Sunday night, 3,500 ft. Monday, then 3,000 ft. Monday night and Tuesday highs near 40 lows 23-30.

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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.