Tropical Storm Jeanne battered the Dominican Republic before heading to the Bahamas on Saturday.
Jeanne lost strength as it drove thousands of Dominicans from their homes by late Friday. But a few hours after being downgraded to a tropical depression, it strengthened again into a tropical storm with lashing winds.
Brian Jarvinen of the National Hurricane Center in Miami said he couldn't rule out the possibility that it might eventually strike Florida.
At 8 p.m., Jeanne was near the Turks and Caicos islands, at latitude 22.2 north and longitude 72.3 west. It was moving north about 6 mph with maximum sustained winds near 45 mph. Storm-force winds extended up to 85 miles.
Out at sea, Hurricane Karl, which had sustained winds near 85 mph, posed no immediate threat to land, forecasters said.