August : The center of Rafael passes St. Martin and is heading north . The tropical storm could become a hurricane by September . Efforts to find three people on a downed plane continue despite the storm . Rafael was moving north at 14 mph . Tropical storm warnings are in effect for many Caribbean islands .
August : The center of Rafael passes St. Martin and is heading north . The tropical storm could become a hurricane by September . Efforts to find three people on a downed plane continue despite the storm . Tropical storm warnings are in effect for many Caribbean islands .