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Here is my weather quiz question for this week. Since the tropical storm season has officially started as of today and we have already had a tropical disturbance that pushed into northern Florida I thought a hurricane question would be in order. What are the three main things needed to form a tropical storm/hurricane? Please remember to post your answer as a comment by clicking on “no comments /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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Advisories: NONE AT THIS TIME.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: A mostly cloudy start, a mix of clouds and sun early today with increasing clouds to mostly cloudy with a good (50%) chance of showers this evening, showers likely (60%) late tonight (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers Saturday AM, a slight (20%) chance of showers Saturday afternoon (0.10 in. of rain possible) and cooler with some sun breaks, showers likely (60%) at night, mostly cloudy with a slight (20%) chance of showers  Sunday, showers likely (60%) Sunday night highs 75-60 lows 52-44 rising to near 48 Sunday. Mostly cloudy with showers likely (60%) Monday, mostly cloudy with a good (50%) chance of showers Monday night and Tuesday, a (30%) chance showers Tuesday evening, a slight (20%) chance of showers Tuesday night, a mix of clouds and sun with a slight (20%) chance of showers Wednesday, then mostly cloudy with a slight (20%) chance of showers Wednesday night and Thursday highs 60-66 lows near 44. (seasonal averages high 70 low 46)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy today, cloudy with a slight (20%) chance evening showers, showers likely (60%) late tonight and Saturday AM, a (40%) chance of showers and cooler in the afternoon, a slight (20%) chance of evening showers and colder, a slight (20%) chance of rain late Saturday night, mostly cloudy with a slight (20%) chance of rain Sunday AM, a (30%) chance of showers in the afternoon and Sunday night highs 82-65 lows 53-46. Mostly cloudy with showers likely (60%) Monday and Monday night, a (30%) chance of showers Tuesday, mostly cloudy Tuesday evening then partly cloudy with a slight (20%) chance of showers Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night, mostly cloudy Thursday AM, then partly cloudy with a slight (20%) chance of showers Thursday highs 66-70 cooling to near 64 Thursday lows 44-50. (seasonal averages high 73 low 50)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with areas of coastal fog this AM, a slight (20%) chance of patchy drizzle this afternoon, cloudy with a (40%) chance of evening showers, showers likely (60%) late tonight, mostly cloudy with a (30%) chance of showers and cooler Saturday, a chance of evening showers, slight (20%) chance of rain Saturday night and Sunday AM, then a (30%) chance of showers Sunday afternoon and Sunday night highs 62-57 lows 52-47. Mostly cloudy with a (40%) chance of showers Monday through Tuesday, mostly cloudy in the evening and partly cloudy with a (30%) chance of showers Tuesday night, then mostly cloudy with a slight (20%) chance of showers Wednesday through Thursday highs 55-60 cooling to near 56 Wednesday night lows 46-49. (seasonal averages high 60 low 49).

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Forecast for the Cascades of Lane County: A mix of clouds and sun today, mostly cloudy with a slight (20%) of showers this evening,  cloudy with showers increasing late tonight (0.10 in. of rain possible) and cooler, cloudy with showers likely (60%) Saturday AM, a good (50%) chance of showers and cooler in the afternoon, mostly cloudy with a slight (20%) chance of showers Saturday night, mostly cloudy with a good (50%) chance of rain and snow showers Sunday, then mostly cloudy with a good (50%) chance of showers late Sunday night free air freezing level 14,000 ft. today, snow level above 8,000 ft., tonight and Saturday, 8,000 ft. Saturday night, 6,500 ft. Sunday, then 7,500 ft. Sunday night highs 65-50 lows 43-37. Mostly cloudy with showers likely (60%) Monday, rain and snow showers likely (60%) Monday night and Tuesday, a (30%) chance of  rain and snow showers Tuesday evening, a slight (20%) chance of showers late Tuesday night, a mix of clouds and sun with a slight (20%) chance of AM showers Wednesday, a (30%) chance of showers Wednesday afternoon, then mostly cloudy with a slight (20%) chance of showers Wednesday night and Thursday snow level 6,000 ft. Monday, 4,500 ft. Monday night through Tuesday night, 6,000 ft. Wednesday, 8,000 ft. Wednesday night, then 7,000 ft. Thursday highs 52-47 warming to near 55 Thursday lows 32-37.

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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.

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Get your local Eugene-Springfield news on-line at Eugene Daily News.com

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