Helene -- which has strengthened to a major Category 4 hurricane -- made landfall in the Big Bend region of Florida on Thursday with 140 mph winds.  Latest DevelopmentsSep 27, 3:16 AM510,000 in Georgia lose powerThe number of Georgians disconnected from the electricity grid rose to 510,

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.

Hurricane Helene threatens to make landfall as the strongest storm in the United States in over a year. Follow here for the latest.