SAN JUAN, Puerto Rico (AP) — Puerto Rico is facing its first major test of emergency preparedness since the 2017 devastation of Hurricane Maria as Tropical Storm Dorian nears the U.S. territory at near-hurricane force. And forecasters say it could grow to Category 3 status as it nears the U.S. mainland as early as the weekend. The U.S. and British Virgin Islands are also in its path, with landslides, widespread flooding and power outages possible in Puerto Rico.