A disturbance near Florida could evolve into a tropical depression or Tropical Storm Dexter this week, according to forecasters.

A tropical storm watch stretches along the coast from Edisto Beach, S.C., to the South Santee River. The hurricane center said those elsewhere along the southeast coast of the United States should also keep an eye on Chantal. Chantal is expected to track slowly to the north and then northwest and move onshore in South Carolina by Sunday morning.

MIAMI -- Tropical Storm Chantal has formed off the southeast U.S. coast. The National Hurricane Center in Miamia says tropical storm warnings have been issued for portions of the Carolinas. Tropical storm conditions are expected in the affected areas later Saturday.