Residents prepare for the arrival of Tropical Storm Fiona, in Loiza, Puerto Rico, Saturday, Sept. 17, 2022. Fiona was expected to become a hurricane as it neared Puerto Rico on Saturday, threatening to dump up to 20 inches (51 centimeters) of rain as people braced for potential landslides, severe flooding and power outages. (AP Photo/Alejandro Granadillo)
HAVANA (AP) — Tropical Storm Fiona headed for Puerto Rico on Saturday night, with forecasters warning it likely would grow into a hurricane before hitting on Sunday with extremely heavy rains with the potential to cause landslides, severe flooding and power outages.