Isaias and the Gulf cruise ships: cancelled?

Tropical Storm Isaias is in the Gulf and forecast to become a hurricane Thursday, aimed at the northern Gulf Coast Friday. No cruise line has cancelled yet. Carnival Valor is due back in New Orleans Thursday, then scheduled to turn around for Cozumel. Galveston ships still have to cross the Gulf from Thursday through Sunday. Watch the cruise line app, not the comments. #hurricaneIsaias #cruiseship #gulfcoast