For several days some of the major global forecast models, including the European and GFS systems, have suggested some kind of tropical or non-tropical disturbance may develop in the Gulf of Mexico during the second half of next week.
What could happen is that an area of disturbed weather now off the coasts of Belize and Honduras will move across Central America during the next couple of days and develop into a tropical storm, or possibly even a hurricane by Tuesday or so of next week. The National Hurricane Center suggests there is a 50 percent chance of the system becoming at least a tropical depression south of Mexico. Heavy rains are a big concern for Central America and Mexico.
Then, by the middle of next week, the system should get pulled north, across Mexico, toward the Gulf of Mexico. It might die over land, or some remnants might emerge into the Bay of Campeche and then move north into the western or central Gulf of Mexico by Thursday or Friday.