An unexpected culprit toppled beach chairs along the sand at normally-calm Clearwater Beach, Florida on June 21. West Coast surfers might snicker at the cause, but the National Weather Service confirms the rare 4-foot wave was caused by a kind of tsunami, just not the kind you're used to.
It was a meteotsunami, which are caused by storms with strong gusting winds, unlike more dramatic tsunamis triggered by earthquakes.
