Tropical Storm Karen, which was headed north into open water on Wednesday, is expected to perform a loop-de-loop, cross back over its own track and swing west toward the Bahamas and Florida.

The storm, which soaked Puerto Rico, was about 330 miles north of the island on Wednesday night, sailing in the general direction of Bermuda at about 14 miles an hour, the National Hurricane Center said. But long before it gets to Bermuda, it is expected to curl east and complete a clockwise loop that puts it on a path toward the Bahamas, where several islands were devastated by Hurricane Dorian this month.

Forecasters said that residents of Florida, which was largely spared by that hurricane, should be keeping an eye on this storm.