National Hurricane Center
Forecasters say a tropical depression has formed off the Gulf coast of Mexico with tropical storm warnings issued from Tuxpan in the state of Veracruz north to La Pesca.
The storm system has already brought heavy rain, downed trees and power outages to Puerto Rico.
Researchers say people take the threat of a female-named storm less seriously.
Officials organized shelters and urged vacationers to leave the Florida Keys as Tropical Storm Isaac approached on Saturday, though preparations farther north focused on getting ready for the Republican National Convention.
A 3-year-old girl was found alive in her dead mother’s arms after the two were thrown hundreds of feet from their Venus home during a tornado spawned by Tropical Storm Debby.