A tropical storm warning was issued for a portion of the southeastern U.S. coast from the Volusia/Brevard county line in Florida to Edisto Beach, South Carolina.
A tropical storm watch was issued from north of Edisto Beach South to South Santee River, South Carolina.
At 11 p.m., the storm was located about 305 miles east of Charleston, S.C. It had maximum sustained winds of 45 mph and was expected to strengthen within the 48 hours. It was moving at near 9 mph, but it should slow down overnight. A turn towards the west-southwest or southwest was expected on Saturday with a gradual increase in forward speed, the National Hurricane Center said.
On Sunday, tropical storm conditions are expected along the coast in the warning area from northeast Florida to South Carolina.
The hurricane center warned that high tide levels and dangerous surf conditions may occur during the weekend. Beryl may cause two to four inches of rain along the southeastern U.S. coast.
Beryl is the second named storm this season, which officially starts on June 1 and runs until Nov. 30.
It is the fourth time since the 19th century, when records began to be kept, that two or more storms have formed before the start of the hurricane season.