Tropical Storm Dorian has strengthened into a hurricane.
Dorian strengthened into a Category 1 hurricane Wednesday as it blew through Puerto Rico and the U.S. Virgin Islands and makes its way toward the U.S. Southeast coast by the weekend.
Dorian's exact path remains uncertain, but the National Hurricane Center said the threat of hurricane conditions in Florida is increasing.
The latest track has Dorian as a Category 3 major hurricane with winds at 115 mph off the east coast of Florida on Sunday into Monday morning.
The storm was battering portions of Puerto Rico and the U.S. and British Virgin Islands on Wednesday as it passed just over and near the islands, the weather service said.
Both sets of Virgin Islands as well as Vieques and Culebra were under hurricane warnings while Puerto Rico stayed under hurricane watch, the weather service said.
The storm could bring landslides, flash flooding and power outages to Puerto Rico and the U.S. Virgin Islands. President Donald Trump declared an emergency Tuesday and ordered federal assistance for Puerto Rico.
"Practically the entire island will be under sustained tropical storm force winds," Roberto García, director of the National Weather Service in San Juan, told reporters Tuesday night.