Meteorologist Alexandra Cranford has the forecast at 10 p.m. on Saturday, September 17, 2022. Fiona is a tropical storm centered south of St. Croix in the northern Caribbean as of late Saturday. Heavy rains and tropical storm force winds are expected across the northern Leeward Islands and Puerto Rico on Saturday night. The latest forecast from the National Hurricane Center shows Fiona strengthening into a hurricane late Sunday as it brushes eastern Dominican Republic.