In the Gulf, Invest 98L has a low chance for development, before it moves inland over northeastern Mexico or southern Texas by late Friday. The National Weather Service in Brownsville, Texas, said regardless of tropical development, locally heavy rain and increased swells "will be a concern" along the Texas coast.

Forecasters say Tropical Storm Erin, which formed in the eastern Atlantic Ocean on Monday, is expected to become the Atlantic's first hurricane of the season. The storm formed just west of the Cabo Verde islands, off the western coast of Africa, and was moving west, the U.S. National Hurricane Center in Miami said.