Hurricane warnings were in effect Sunday for Puerto Rico and parts of the coast of the Dominican Republic. Puerto Ricans braced as Fiona intensified into a hurricane, nearly five years to the day a blockbuster system ravaged the island and left thousands dead. Fiona could lash the southern coast with life-threatening flooding and mudslides, forecasters warned. Puerto Rico was already feeling Fiona's effects early Sunday and conditions would only deteriorate, Accuweather said. Fiona was located about 50 miles south of Ponce, Puerto Rico, on Sunday morning and had maximum sustained winds of 80 mph. The center of the storm was expected to move close to or over Puerto Rico, a U.S. territory of 3.2 million people, on Sunday afternoon or evening, before nearing the northern coast of the Dominican Republic Sunday night and Monday. Visit the link in our bio for a live storm tracker and more details on Hurricane Fiona. 📸: @gettyimages