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Heavy Rainfall and Severe Thunderstorms Possible in the Mid-Atlantic and Northeast Today; Dangerous Heat in the Southwest

Scattered severe thunderstorms containing the potential for damaging wind gusts and excessive rainfall are possible from the Mid-Atlantic to southern New England today, with additional thunderstorms and heavy rain possible across parts of the Plains and Middle Mississippi Valley. Heat and humidity remain along the East Coast and Interior Northwest, while dangerous heat builds into the Southwest. Read More >

Overview

Extremely heavy rainfall, flash flooding, and major river flooding besieged northeastern and east central Iowa during the latter part of September of 2016. Many places saw rivers rise to levels not seen since the devastating floods of 2008. Numerous towns along the Shell Rock, Cedar, Wapsipinicon, and Winnebago rivers and their tributaries were inundated with flood waters. Flash flooding also befell areas under the heaviest rainfall as some places received over 5 to 10 inches in a few hours! Multiple storms tracked across the Ames area on the night of September 22 and led to flash flooding across the city. Finally, at least one tornado and areas of damaging winds and large hail battered northern Butler and southern Floyd counties on the evening of September 21.

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Total Rainfall Amounts across Iowa from September 21-25, 2016
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