A midnight update from the National Hurricane Center upgraded Tropical Storm Isaias to a Category 1 hurricane a day before earlier predictions called for, while it continued on track toward the Bahamas and South Florida.
The late-night update showed Hurricane Isaias had lost some forward speed but grown more powerful, with 80 mph winds, shortly after passing through Hispaniola..
The center of Isaias was forecast to move near or over the Southeastern Bahamas late Thursday night, then move near or over the Northwestern Bahamas and near South Florida on Saturday.
The storm has already crossed the mountains of Hispaniola while flooding roads and homes in Puerto Rico and blowing roofs away in Haiti.
The tropical storm watch is in effect from Ocean Reef northward to Sebastian Inlet, Florida.
Miami-Dade County also announced that all facilities operated by the Miami-Dade County Parks, Recreation and Open Spaces Department, including beaches and parks,