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Here is this week’s weather quiz 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. More frontal systems will be hitting Oregon over 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 showers likely (60%) tonight (0.10 in. of rain possible), a good (50%) chance of AM showers, then showers likely (60%) Thursday (0.10 in. of rain possible) and Thursday evening, rain Thursday night (0.25 in. of rain possible), cloudy with AM rain Friday, showers likely (60%) in the afternoon (0.10 in. of rain possible),  showers likely (60%) Friday evening, then rain late at night lows 43-39 highs near 50. Mostly cloudy with rain Saturday and Saturday evening, rain chances decreasing overnight, cloudy with a (40%) chance of rain Sunday, a good (50%) chance of rain Sunday night, rain likely (60%) Monday through Tuesday night, then mostly cloudy with a good (50%) chance of rain Wednesday highs 53-46 lows 45-40. (seasonal averages highs 46 low 34)

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Forecast for the Umpqua Basin including, Roseburg:  Cloudy with showers likely (60%) tonight, rain Thursday and Thursday night, rain likely (60%) Friday, cloudy with a (40%) chance of rain Friday night lows 44-42 highs 53-49. Rain Saturday,  cloudy with a (40%) chance of rain Saturday night, mostly cloudy with a slight (20%) chance of rain Sunday and Sunday night, cloudy with a slight (20%) chance of rain Monday, then rain likely (60%) Monday night through Wednesday highs 54-49 lows 47-40. (seasonal averages high 49 low 36)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Cloudy with   coastal showers and thunderstorms tonight, showers likely (60%) inland tonight, AM showers likely (60%), rain Thursday and Thursday night, coastal rain and rain likely (60%) inland Friday, and cloudy with a good (50%) chance of rain Friday night lows 48-44 highs 55-50. Mostly cloudy with rain and breezy Saturday, cloudy with showers likely (60%) Saturday night, mostly cloudy with a (30%) chance of rain Sunday, a (40%) chance of rain Sunday night, cloudy with a good (50%) chance of rain Monday, then rain likely (60%) Monday night and Tuesday, rain Tuesday night, and rain likely (60%) Wednesday highs 54-48 lows 50-43. (seasonal averages high 53 lows 40).

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Forecast for the Cascades of Lane County:  Mostly cloudy with  showers likely (60%) tonight (2-5 in. of snow possible),  showers Thursday (3-6 in. of snow possible), evening showers, then rain or snow increasing Thursday night (5-9 in. of snow possible), rain or snow Friday AM, showers in the afternoon decreasing in the evening, rain or snow late Friday night snow level 5,000 ft. tonight and Thursday, 4,500 ft. Thursday night, and Friday AM, falling to 3,500 ft. Friday afternoon, and 4,000 ft. Friday night rising to 5,000 ft. late at night lows near 30 highs 35-38. Mostly cloudy with rain, possibly heavy at times, Saturday afternoon, rain in the evening, then a good (50%) chance of rain late Saturday night, cloudy with a slight (20%) chance of rain Sunday, then rain likely (60%) Sunday night through Monday night, then rain or snow likely (60%) Tuesday through Wednesday snow level 6,000 ft. rising to 9,000 ft. Saturday,   above 8,000 ft. Saturday night, 7,000 ft. Sunday, 6,500 ft. Sunday night, 7,000 ft. Monday and Monday night, falling to 5,500 ft. Tuesday, 4,500 ft. Tuesday night and Wednesday highs 38-42 lows 35-25.

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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.