A tropical storm warning occurs from the mouth of the Rio Grande to Port Aransas, Texas. This means winds of at least 39 mph are expected within 36 hours.
Storm and tropical storm warnings have also been issued, meaning dangerous and strong tropical storm winds are possible within 48 hours, respectively.
The hurricane center predicts the storm will intensify to 65 mph on Tuesday morning, located on the south coast of Texas or just off the coast. Heavy rains will be the main threat, with a widespread forecast of 5 to 10 inches off the coast of Texas, with localized areas up to 15 inches.
The storm surge will also be a risk, with forecasts of 2 to 4 feet from the U.S.-Mexico border via High Island, Texas.
Sunday afternoon, showers and thunderstorms will begin to occur off the coast of Texas and Louisiana, but showers and thunderstorms will remain in the forecast for much of this week. The center of the storm is expected to move through Texas Monday evening toward South Texas and Tuesday through upper parts of the coast.
This story is being developed and will be updated.