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A new week and a new weekly weather quiz question. Here is this week’s question. On average how many tornadoes hit the United States in a year? Please post your answer as a a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

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Another  trough of low pressure has moved in offshore to set us up for more storms.  The next major frontal system is approaching the Pacific Northwest and that means back to wet weather this week.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM THIS AFTERNOON FOR THE NORTH OREGON CASCADES.

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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 rain this AM, showers this afternoon (0.25 in. of rain possible), showers likely (60%) tonight (0.25 in. of rain possible), and showers likely (60%)   Thursday (0.25 in. of rain possible) and Thursday night(0.50 in. of rain possible), cloudy with a good (50%) chance of AM showers Friday, a good (50%) chance of rain in the afternoon and and rain likely (60%) Friday night highs 52-46 lows 43-37. Mostly cloudy with rain likely (60%) Saturday and Saturday night, cloudy with a good (50%) chance of rain Sunday, mostly cloudy with a good (50%) chance of rain Sunday night, rain likely (60%) Monday, then mostly cloudy with a good (50%) chance of rain Monday night and Tuesday highs near 48 lows near 40. (seasonal averages highs 47 low 34)

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Forecast for the Umpqua Basin including, Roseburg:  Cloudy with rain this AM,  showers likely (60%) this afternoon, cloudy with a (40%) chance of showers this evening,  showers likely (60%) late tonight and Thursday AM, rain likely (60%) Thursday afternoon, rain Thursday night, rain likely (60%) Friday AM,  a (40%) chance of afternoon rain, and cloudy with a a good (50%) chance of rain Friday night highs 53-49 lows 45-38. Cloudy with rain Saturday and Saturday night, mostly cloudy with a slight (20%) chance of rain Sunday and Sunday night, cloudy with a slight (20%) chance of rain Monday, cloudy with a good (50%) chance of rain Monday night, and rain likely (60%) Tuesday highs 54-49 lows 47-44. (seasonal averages high 50 low 36)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Cloudy with AM rain and a chance of a thunderstorm, then afternoon showers likely (60%) today and windy (wind: S 20-30 mph decreasing to S 15-20 mph this afternoon),  showers likely (60%) tonight, AM showers likely (60%), rain likely (60%) Thursday afternoon, rain and breezy (wind: SW 15-25 mph) Thursday night, rain  likely (60%) Friday,  and cloudy with a good (50%) chance of rain Friday night highs 55-52 lows 48-43. Mostly cloudy with rain Saturday and Saturday night, mostly cloudy with a slight (20%) chance of rain Sunday, a (40%) chance of rain Sunday night, a slight (20%) chance of rain Monday, then rain likely (60%) Monday night and Tuesday highs near 55 lows 50-46. (seasonal averages high 53 lows 40).

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Forecast for the Cascades of Lane County:  Mostly cloudy with AM rain and snow with possible freezing rain today, rain and snow showers this afternoon (2-4 in. of snow possible), rain and snow showers likely (60%) tonight (1-4 in. of snow possible), rain and snow showers likely (60%) Thursday (1-4 in. of snow possible), and rain and snow showers Thursday night (2-5 in. of snow possible), rain and snow showers Friday, and cloudy with snow likely (60%) Friday night  snow level 5,000 ft. today and tonight, 4,500 ft. Thursday, 5,000 ft. Thursday night, 5,000 ft. Friday, and 4,000 ft. Friday night highs 37-33 lows 32-25 . Mostly cloudy with rain and snow Saturday and Saturday night, cloudy with a (40%) chance of rain Sunday, mostly cloudy with a (40%) chance of rain Sunday night and Monday, then rain likely (60%) Monday night and Tuesday snow level 5,000 ft. Saturday and Saturday night, 6,500 ft. Sunday through Monday, rising to 8,000 ft. Monday night, and falling to 7,000 ft. Tuesday highs 35-39 lows 25-28.

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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.