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What's a 100-year flood? A hydrologist explains

  • Written by Robert Mace, Executive Director of the Meadows Center for Water and Environment, Texas State University
imageA '100-year flood' doesn't mean you'll be flood-free for the next 99 years.Win McNamee/Getty Images

A 100-year flood, like a 100-year storm, is one so severe it has only a 1% chance of hitting in any given year.

Unfortunately, many people believe that if they experienced a 100-year flood this year, they will not see another one like it for 99 years.

I...

Read more: What's a 100-year flood? A hydrologist explains

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