Helene is expected to make landfall on Florida's Big Bend this evening as a major category 4 hurricane, bringing the risk of catastrophic damage.

Helene threatening an “unsurvivable” storm surge in parts of Florida and damaging winds, rains, and flash floods hundreds of miles inland across much of the southeastern US, forecasters said.

Because of its size, heavy rain even before landfall will begin in the southeastern part of the country. Helene could be a "once-in-a-generation" storm in parts of Georgia and the Carolinas,