You have probably heard the term many times before, but what exactly is a flash flood? This flash flood event happened five years ago today; do you remember? #WeatherKnowledgeWednesdaypic.twitter.com/kfmBgdznce

You have probably heard the term many times before, but what exactly is a flash flood? This flash flood event happened five years ago today; do you remember?

Source: Twitter NWS Burlington