Daily Archives: September 24, 2013

What’s a 100-year flood?

It is wrong to think that a “100-year flood” happens only once every 100 years. The phrase “100-year flood” describes the estimated probability of a flood event happening in any given year.

A 100-year event has a 1 percent chance (or 1-in-100) of occurring in any given year. Continue reading

Category: Climate

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