Tropical Storm Chantal was downgraded to a depression Sunday but raised concerns of possible flash flooding as it makes its way into central and eastern North Carolina. Chantal

Tropical storm warnings were extended up to Surf City, North Carolina, as Tropical Storm Chantal churned off the coast of the southeastern U.S. on Saturday, according to the National Hurricane Center.

A tropical storm warning remains in effect from the South Santee River, South Carolina, to Surf City, North Carolina, including Myrtle Beach, South Carolina. Peak winds in the area are forecast to be 20 to 30 mph with gusts up to 45 mph. About an hour after making landfall, Chantal had weakened, with sustained winds then up to 50 mph.