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It’s time for my weekly weather quiz. Here is this week’s question. Major flooding occurred along the Northeast Coast of the U.S. in the summer of 1972 causing a 500-year flood in Elmira, New Your and other locations. What was the main cause of this flooding? You’ll get extra praise if you can explain a secondary cause for all of the rain that fell. Please place your answer as 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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A high pressure ridge (shaded “Arch” shape over the Northwest) is moving away from us and a trough of low pressure (the shaded “U” shape along the coast) is moving in behind the ridge. A frontal system passed through Oregon late Monday. As the upper level low pressure trough migrates Eastward across Oregon the chance of rain will move out with it. High pressure (see the shaded “arch” over the Gulf of Alaska) returns the sunshine and warmer temperatures beginning today. Look for another stronger cold front to roll across Oregon on Sunday.
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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: AM clouds or fog then a mix of clouds and sun and warmer today, and mostly clear tonight with patchy fog late and Wednesday AM, a mix of clouds and sun Wednesday, and partly cloudy Wednesday night highs 68-73 lows 40-43. A mix of clouds and sun Thursday and Friday, partly cloudy Thursday night, mostly cloudy Friday night through Saturday night, and mostly cloudy with a (20%) chance of rain Sunday and Sunday night, and a slight (20%) chance of showers Monday (Columbus Day) highs 69-75 lows 46-50. (seasonal averages highs 70 low 42)
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Forecast for the Umpqua Basin including, Roseburg: Fog and low clouds this morning, sunny and warmer in the afternoon, and partly cloudy tonight through Friday night highs 68-75 lows 45-50. Mostly cloudy Saturday and Saturday night, mostly cloudy with a slight (20%) chance of rain Sunday, a (30%) chance of showers Sunday night, and a slight (20%) chance of showers Monday (Columbus Day) highs hovering between 76-65 lows 52-47. (seasonal averages high 74 low 46)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Sunny and warmer today, partly cloudy tonight through Wednesday night highs 65-68 lows 48-52. Mostly cloudy Thursday and Friday, partly cloudy Thursday night, mostly cloudy Friday with a slight (20%) chance of rain Friday night, mostly cloudy Saturday and Saturday night, a slight (20%) chance of rain Sunday, mostly cloudy with a (30%) chance of showers Sunday night, and a slight (20%) chance of showers Monday (Columbus Day highs hovering from 63-67 lows 53-50. (seasonal averages high 65 lows 47).
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Forecast for the Cascades of Lane County: A mix of clouds and sun and warmer today and Wednesday, mostly clear tonight and partly cloudy Wednesday night free air freezing level rising to 10,000 ft. this afternoon, rising to 12,000 ft at night, 13,000 ft. Wednesday, and 12,000 ft. Wednesday night highs 60-64 lows near 35. A mix of clouds and sun Thursday through Saturday, partly cloudy at night free air freezing level 11,000 ft. Thursday through Friday, 12,000 ft. Saturday, and 13,000 ft. Saturday night highs 59-62 lows 40-43. Partly cloudy with a slight (20%) chance of rain Sunday and Sunday night, and a slight (20%) chance of showers Monday (Columbus Day) snow level above 8,000 ft. Sunday and Sunday night and 7,000 ft. Monday highs 60-56 low 43.
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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.