Tropical Storm Chantal formed Saturday morning about 150 miles off the coast of South Carolina, prompting tropical storm warnings for portions of the Carolinas.The National Weather Service in Miami said the storm was located south-southeast of Charleston,

Tropical storm warnings have been extended up to Surf City, North Carolina, as Tropical Storm Chantal is offshore of the southeastern U.S. on Saturday, according to the National Hurricane Center. The storm has maximum sustained wind of up to 45 mph and is moving north at just 3 mph.

Tropical Depression 3 strengthened into Tropical Storm Chantal on Saturday, July 5, according to the latest update from the National Hurricane Center.