Forecasters expect that Isaac will be a hurricane by the time it makes landfall, likely on the Florida Panhandle late Tuesday or early Wednesday. The Republican National Convention, which opens in Tampa on Monday, is within the possible strike zone.
The Florida Highway Patrol closed portions of Interstate 10 (I-10) in north Florida early Tuesday due to flooding caused by tropical storm Debby. Troopers reported several areas of flooding on a roughly 50-mile stretch of the east-west interstate east of where it crosses I-75.
Tropical Storm Debby, its accompanying winds and rains brought flooding to parts of Florida. Rick Scott, the state's governor, declared a state of emergency. The storm is expected to travel further inland as the week progresses.