Storm surge is a major threat from Helene, which is forecast to hit Florida as a major Category 3 hurricane on Thursday.

A shallow coastal shelf makes cities along the Gulf of Mexico more vulnerable to storm surges during hurricanes.

The surge could be 15 to 20 feet higher than normal tide levels, flooding dozens of communities along the Gulf Coast.

Hurricane Helene is projected to have a storm surge that could go as high as 20 feet. Here's what to know about storm surges ...

The winds might have died down as Hurricane Helene dwindles, but dangerous storm surge and flooding rivers in Florida are ...

Damage assessments and rescue operations are underway as the brunt of the storm hit the state’s Big Bend, also the landing ...

Hurricane Helene has been intensifying with the help of unprecedentedly warm waters in the Gulf of Mexico and is now ...

According to the latest forecast from the national hurricane Center, parts of Florida could see a storm surge up to 18 feet.

Hurricane Helene is unleashing its fury on Florida with landfall in the coming hours as a major hurricane along the Gulf ...

Hurricane Helene blasted not just water, but huge amounts of sand on to city streets in the heart of the St. Petersburg-Tampa ...

Hurricane Helene brought destructive winds, torrential rains and the possibility of a catastrophic storm surge to the Gulf ...

By Rich McKay, Brendan O'Brien and Andrew Hay (Reuters) -Driving rain flooded roadways and closed down airports in Florida as ...