Storm surge is a deadly risk in hurricanes that threatens millions along the U.S. Gulf Coast, but why is it so deadly? RELATED: FEMA director warns of storm surges, urges evacuations ahead of Ian https://youtu.be/x2B2g-bkISw Hurricane Ian’s forecast path northward near the Florida coast threatens millions, especially its potentially deadly and devastating storm surge that could push into bays and streams, flooding homes and businesses miles inland. Uncertainty in the forecast Tuesday left much of the state's densely populated west coast facing the risk of a massive storm surge, from Naples north to the Big Bend. » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/3BQfm26 » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. #storm #hurricaneian #weather