Forecasters have declared a hurricane warning for parts of the Florida coastline as Hurricane Isaias drenches the Bahamas on a track for the U.S. East Coast. Isaias strengthened into a Category 1 hurricane late Thursday after crossing the Dominican Republic, and has been hitting the southernmost Bahamas islands with rain and wind. On Friday afternoon, the storm had maximum sustained winds of 75 miles per hour and was centered about 245 miles southeast of Nassau. It was moving at 16 miles per hour, and its center was forecast to be near the central Bahamas late Friday and move near or over the northwest Bahamas and near South Florida on Saturday. Hurricane hunters have found that Isaias is getting better organized. A hurricane warning is in effect for the east coast of Florida. A warning means that hurricane conditions are expected whereas a watch means that conditions are possible.