Helene -- which has strengthened to a major Category 3 hurricane -- is taking aim at Florida, where it's forecast to make landfall along the Big Bend area on Thursday night. Latest DevelopmentsSep 26,

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.