The storm threatens to dump up to 20 inches of rain as forecasters placed Puerto Rico. People are bracing for potential landslides, severe flooding and power outages.
Tropical Storm Fiona is heading for Puerto Rico and forecasters are warning it likely will grow into a hurricane before hitting on Sunday with extremely heavy rains
Tropical Storm Fiona threatened to dump up to 16 inches of rain in parts of Puerto Rico on Saturday as forecasters placed the U.S. territory under a hurricane watch and people braced for potential landslides, severe flooding and power outages.