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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 with another one following behind it. This frontal system continues to move through spreading showers and some thunderstorms ahead of and with it. Over the weekend we’ll see another frontal system move through, but this time it will be a little farther to the North.

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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: Cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of showers tonight (0.10 in. of rain possible, more in thunderstorms with small hail possible), mostly cloudy with AM showers likely (60%) Friday, a good (50%) chance of afternoon showers (0.10 in. of rain possible), rain likely (60%) Friday night (0.10 in. of rain possible), then showers likely (60%) Saturday (0.25 in. of rain possible) and Saturday night (0.25 in. of rain possible) lows 37-42 highs 56-52. Mostly cloudy with showers likely (60%) Sunday, a good (50%) chance of showers Sunday night through Tuesday night, partly cloudy with a (40%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night, then partly cloudy with a slight (20%) chance of showers Thursday highs 52-62 lows near 42. (seasonal  averages high 57 low 37)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with showers and isolated thunderstorms this evening, scattered rain and snow showers late tonight (snow level 2,500 ft. falling to 2,000 ft. late), AM rain and snow showers likely (60%) Friday, showers likely (60%) Friday afternoon (snow level 1,000 ft. rising to 2,500 ft., 1-2 in. of snow possible), rain and snow Friday night (snow level 2,500 ft. falling to 2,000 ft. late, 1 in. of snow possible), rain Saturday (snow level 2,500 ft.), then showers likely (60%) Saturday night (snow level 3,000 ft. falling to 2,500 ft. late) lows 35-42 highs 54-50. Mostly cloudy with showers Sunday, showers likely (60%) Sunday night, mostly cloudy with a good (50%) chance of showers Monday through Tuesday night, a (40%) chance of rain Wednesday, then a slight (20%) chance of showers Wednesday night and (30%) Thursday highs 52-62 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 showers and isolated evening thunderstorms, showers late this evening and tonight, showers likely (60%) Friday AM (snow level 1,500 ft.), showers Friday afternoon, rain Friday night and breezy late (wind: S 15-25 mph), rain Saturday, coastal showers Saturday night and rain likely (60%) inland lows 40-44 highs 52-48. Mostly cloudy with showers Sunday, showers likely (60%) Sunday night, showers likely (60%) Monday and Monday night, a (30%) chance of showers Tuesday and Tuesday night, a (40%) chance of rain Wednesday, a (30%) chance of showers Wednesday night, then partly cloudy and warmer Thursday with a (30%) chance of showers highs 48-58 lows 42-46. (seasonal averages high 56 low 42).

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Forecast for the Cascades of Lane County:  Mostly cloudy with rain and snow showers likely (60%) tonight (3-6 in. of snow possible) with a slight (20%) chance of evening thunderstorms, rain and snow showers likely (60%) Friday (1-3 in. of snow possible), rain and snow likely (60%) Friday night (2-5 in. of show possible),  rain and snow showers Saturday (3-6 in. of snow possible), rain and snow showers likely (60%) Saturday night (3-6 in. of snow possible) snow level 2,500 ft. tonight and Friday, and 3,000 ft. Friday night through Saturday night lows 25-20 highs 37-42. Mostly cloudy with rain and snow showers likely (60%) Sunday, snow showers likely (60%) Sunday night, rain and snow showers likely (60%) Monday, a good (50%) chance of snow showers Monday night, then a good (50%) chance of rain and snow showers Tuesday and Tuesday night, then partly cloudy with a (40%) chance of rain and snow showers Wednesday, a (30%) chance of showers Wednesday night, then mostly cloudy with a (40%) chance of showers Thursday snow level 3,000 ft. Monday and Monday night 4,000 ft., 3,500 ft. Tuesday and Tuesday night, 4,000 ft. Wednesday, then rising to 6,000 ft. Wednesday night and Thursday highs 40-50 lows 26-33.

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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.