The National Hurricane Center says tropical storm conditions and heavy rainfall are possible over parts of the central U.S. Gulf Coast in coming days.
The Miami-based center said Sunday afternoon that a storm system is brewing about 240 miles (385 kilometers) east-southeast of Marathon in the Florida Keys. Maximum sustained winds of the unnamed system have been clocked at 30 mph (45 kph) and the system is moving west-northwest at 15 mph (24 kph).
A tropical storm watch has been issued for portions of the central Gulf Coast from the Alabama-Florida line westward to nearly Morgan City, Louisiana.
The center says the system