Forecasters expect Tropical Storm Florence to become a hurricane again soon as it approaches the East Coast.
In its 5 p.m. EDT advisory, the National Hurricane Center said "a significant phase of intensification" is expected late Saturday.
The Miami-based weather center says the storm could intensify to a Category 4 hurricane by midweek, but its path was still unclear.
On Saturday evening, Florence's maximum sustained winds were estimated to be 70 mph (110 kph). The storm was centered about 810 miles (1305 kilometers) southeast of Bermuda and moving west at 5 mph (7 kph).