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100 Year Floods and MegaHomes

Here's what I've been reading in the online papers.

You know those "100 year floods?" Stop calling them that!

Many people seem to believe that a 100-year flood should happen once every 100 years, or that a 500-year flood should happen every 500 years. But that's not how it works.

A 100-year flood is defined as a flood so big that it has a 1 percent chance of happening in any given year.

A 500-year flood is one with a 0.2 percent chance of happening in a given year -- a 1-in-500 chance.

Scientists say it is not unusual to hear from people who want to know if they have lived through a "100-year" event and want to cancel their flood insurance, believing one recent big flood lowers the risk of another. But that's not the case.

Meanwhile, megahomes are on the minds of Bellevue and Silly City

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