The National Hurricane Center said the storm’s maximum sustained winds Wednesday afternoon are estimated to be 130 mph (215 kph).
Hurricane Florence is centered about 1,295 miles (2,080 kilometers) east-southeast of Bermuda and is moving northwest at 13 mph (20 kph).
Forecasters expect Florence to weaken somewhat over the next few days, but they anticipate it will still be a powerful hurricane through early next week.
Officials say swells caused by Florence will begin to affect Bermuda on Friday.
There are no coastal watches or warnings currently in place.