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What Causes Flooding - Flash Floods

Flash Floods

Flash floods are the #1 weather-related killer in the U.S. since they can roll boulders, tear out trees, and destroy buildings and bridges. A flash flood is a rapid flooding of low-lying areas in less than six hours, which is caused by intense rainfall from a thunderstorm or several thunderstorms. Flash floods can also occur from the collapse of a man-made structure or ice dam.

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25% of flood insurance claims come from moderate-to-low risk areas.

Last Updated: Wednesday, 28-Oct-2009, 2:15 PM (EDT)

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