Hurricane Justin slammed the southern S.C. coast Monday with 150-mph winds and torrential rains, killing at least two.
Forecasters say Hurricane Bertha could become stronger in the next day as it heads toward Bermuda.
It's unknown if or when the hurricane will make landfall. Forecasters have been urging people on the island to monitor the storm's progress.
As of about 11 a.m. EDT Wednesday, the center of the storm was about 550 miles northeast of the northern Leeward Islands and about 715 miles southeast of Bermuda.
Maximum sustained winds are about 75 mph with some higher gusting. National Hurricane Center forecasters expect the storm to regain strength in the next 24 hours but say there is a lot of uncertainty in that prediction.
The Atlantic season's first hurricane is traveling west-northwest at about 12 mph