SAN JUAN, Puerto Rico (AP) – Hurricane Dorian is moving over open waters after doing limited damage in Puerto Rico and the Virgin Islands, though forecasters warn it is gaining strength and probably will grow into a dangerous storm while heading toward Florida’s east coast. The U.S. National Hurricane Center said late Wednesday Dorian is expected to strengthen into a dangerous Category 3 hurricane as it stays well to the east of the southeastern and central Bahamas over the next two days. The forecast calls for the storm to pass near or over the northern Bahamas on Saturday and close in on Florida by Sunday afternoon. The storm was a Category 1 hurricane Wednesday when it swirled through the islands of the northeastern Caribbean, causing power outages and flooding in places no major damage.