…A strong thunderstorm will impact portions of northern Miami-Dade, Broward and south central Palm Beach Counties through 545 PM EDT… At 458 PM EDT, National Weather Service meteorologists were tracking a strong thunderstorm 8 miles north of Mile Marker 30 On Alligator Alley, or 17 miles northwest of Sunrise, moving south at 10 mph. HAZARD…Winds in excess of 30 mph and torrential rainfall.