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 Chantal formed off the coast of South Carolina on Saturday, July 5, as the National Hurricane Center warned of heavy rainfall across the coastal Carolinas. The center extended a tropical storm warning from Edisto Beach,

Tropical Storm Chantal formed in the Atlantic on Saturday morning and is projected to reach South Carolina and North Carolina on Sunday, the National Hurricane Center said.