A tropical depression in the Gulf of Mexico has strengthened into Tropical Storm Debby. Forecasters at the National Hurricane Center say the storm has maximum sustained winds of 45 mph as it moves toward Florida.

A tropical depression strengthened into Tropical Storm Debby north of Cuba on Saturday and was predicted to become a hurricane as it moves through the Gulf of Mexico on a collision course with the Florida coast.

The National Hurricane Center said in an update posted at 2 a.m. Sunday that Debby was located about 65 miles (105 kilometers) west-northwest of Dry Tortugas National Park in Florida and about 230 miles (370 kilometers) south-southwest of Tampa. The storm was moving northwest at 14 mph (22 kph) with maximum sustained winds of 45 mph (75 kph).

Wind and thunderstorms have spread over a broad area including southern Florida, the Florida Keys and the Bahamas. A hurricane warning was in effect for sections of the state’s coast with tropical storm warnings for the Florida Keys.