The U.S. Gulf Coast is bracing for a major hurricane, with Tropical Storm Helene expected to intensify rapidly into a Category 3 storm and hit Florida's Big Bend.

Tropical Storm Milton formed in the Gulf of Mexico on Saturday as forecasters expect the storm to quickly strengthen into a major hurricane over the next few days. Milton is expected to rapidly intensify over the next 36 hours and could be a major Category 3 hurricane when it reaches the west coast of the Florida peninsula mid-week,

Hurricane Milton, which forecasters say poses an "extremely serious threat," is expected to roar into Florida tomorrow.