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This is your last chance to answer my 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. A frontal system pushed through spreading showers and some thunderstorms ahead of and with it. Over the weekend we’ll see another frontal system move through and the same for early next week. It’s been a long time coming, but a high pressure ridge will move in late next week into the weekend warming us up so it will feel more like Spring.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT  UNTIL 8 PM THIS EVENING FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.  A WINTER WEATHER ADVISORY IS IN EFFECT FROM 11 PM TONIGHT UNTIL 11 AM SATURDAY ABOVE 2,000 FT FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS,  AND JACKSON COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON SATURDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON CASCADES AND THE SISKIYOU MOUNTAINS.

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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 showers likely (60%) this evening, rain late tonight (0.25 in. of rain possible), showers Saturday (0.25 in. of rain possible), showers likely (60%) Saturday night (0.10 in. of rain possible), showers Sunday (0.25 in. of rain possible), a good (50%) chance of showers Sunday night (0.10 in. of rain possible) and Monday, then rain likely (60%) Monday night lows 40-43 highs 50-55. Mostly cloudy with showers likely (60%) Tuesday, a (30%) chance of showers Tuesday night, partly cloudy with a (40%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night, partly cloudy with a slight (20%) chance of showers Thursday, mostly cloudy with a good (50%) chance of showers Thursday night, then partly cloudy with a good (50%) chance of showers Friday highs 55-63 lows near 42. (seasonal  averages high 57 low 37)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with showers this evening, rain and snow late tonight (snow level 3,000 ft. falling to 1,500 ft. late, 1-2 in. of snow possible), rain and snow showers Saturday AM, showers Saturday afternoon (snow level 2,000 ft. rising to 2,500 ft., 1 in. of snow possible), showers likely (60%) Saturday night (snow level 3,000 ft. falling to 2,500 ft. late), showers Sunday (snow level 2,500 ft. rising to 3,000 ft. in the afternoon), showers likely (60%) Sunday night (snow level 3,000 ft. falling to 2,500 ft.), mostly cloudy with a good (50%) chance of AM rain and snow showers Monday, a (40%) chance of afternoon showers, cloudy with showers Monday night, showers likely (60%) Tuesday, then mostly cloudy with a slight (20%) chance of  showers Tuesday night lows 38-46 highs 50-57. Mostly cloudy with a slight (20%) chance of showers and warmer Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night and Thursday, then mostly cloudy with a (40%) chance of showers Thursday night and Friday highs 62-68 lows 42-45. (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 rain tonight (snow level 2,000 ft. late tonight) and breezy (wind: S 15-20 mph increasing to S 20-30 mph at the shore and S 10-20 mph gusts to 40 mph late inland), showers Saturday (snow level 2,000 ft. in the AM), coastal showers Saturday night and showers likely (60%) inland,  showers Sunday and breezy (wind: S 20-25 mph gusts to 40 mph shifting SW 10-20 mph in the afternoon), showers likely (60%) Sunday night,  a (40%) chance of showers Monday,  then showers likely (60%) Monday night lows 40-45 highs 48-54. Mostly cloudy with showers likely (60%) Tuesday,  a (30%) chance of showers Tuesday night, partly cloudy with a (40%) chance of showers and warmer Wednesday, a slight (20%) chance of showers Wednesday night and (40%) Thursday, then mostly cloudy with a (40%) chance of showers Thursday night and Friday highs 55-62 lows 40-47. (seasonal averages high 56 low 42).

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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers likely (60%) this evening, snow late tonight (2-5 in. of show possible),  snow showers Saturday (3-6 in. of snow possible), snow showers likely (60%) Saturday night (1-3 in. of snow possible), snow showers Sunday (4-7 in. of snow possible), snow showers likely (60%) Sunday night (1-4 in. of snow possible), a good (50%) chance of snow showers Monday, then snow and rain Monday night snow level 3,000 ft. tonight, 2,500 ft. Saturday, 3,000 ft. Saturday night, 2,500 ft. Sunday and Sunday night, then 3,000 ft. Monday and Monday night lows 25-30 highs 34-43. Mostly cloudy with snow showers, rain showers likely (60%) Tuesday,  a good (50%) chance of rain and snow showers Tuesday night, partly cloudy with a (40%) chance of rain and snow showers Wednesday, partly cloudy with a (30%) chance of showers Wednesday night, then mostly cloudy with a (40%) chance of showers Thursday, and a good (50%) chance of showers Thursday night and Friday snow level 3,500 ft. Tuesday and Tuesday night, 4,000 ft. Wednesday, then rising to 6,000 ft. Wednesday night through Thursday night, then 5,500 ft. Friday highs 40-50 lows 29-33.

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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.