It’s Time To Ditch The Concept Of ‘100-Year Floods’
"That’s no surprise to experts, who say the concept of the “100-year flood” is one of the most misunderstood terms in disaster preparedness. In the wake of catastrophic flooding on the Texas coast, the media has been working hard to explain the term, turning out dozens of articles explaining that a “100-year flood” is not a flood that you should expect to happen only once every 100 years. Instead, it refers to a flood that has a 1 percent chance of happening in any given year. Over the course of a 30-year mortgage, a house in a 100-year floodplain has a 26 percent chance of being inundated at least once."
Hurricane Agnes – Wikipedia.
44 years ago was the start of Hurricane Agnes. It would track New York and Pennsylvania, devastating portions Western NY -- although Geneseo and Rochester were spared largely thanks to the Mount Morris Dam.
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