Idalia's latest forecast
Idalia may rapidly intensify on Monday night and Tuesday, strengthening to a major Category 3 hurricane by Tuesday night.
Landfall is currently forecast for Wednesday morning in Florida's Big Bend area.
Storm surge is expected to be severe. It could reach 4 to 7 feet in Tampa and up to 11 feet in the Big Bend area.
Up to 10 inches of rain is possible in north Florida. Tampa Bay could see more than 6 inches of rain.
By Wednesday evening, Idalia will be weaker -- a tropical storm -- as it moves near the Carolinas with heavy rain and gusty winds. Idalia is not expected to impact the Northeast.
-ABC News' Max Golembo