MIAMI (AP) — A hurricane warning has been issued for parts of the Texas and Mexico coasts as Tropical Storm Dolly churns through the Gulf of Mexico.

Forecasters at the National Hurricane Center in Miami said Monday that the warning in Texas extends from Brownsville to Port O'Connor. The government of Mexico also issued a hurricane warning from Rio San Fernando northward to the U.S. border.

Forecasters say it's likely Dolly will become a hurricane, but they don't expect it to become a major hurricane.

Dolly was located Monday about 435 miles southeast of Corpus Christi, Texas. It was moving at about 17 mph and had maximum sustained winds near 50 mph.