SAN JUAN, Puerto Rico — Forecasters on Tuesday issued a tropical storm warning for Puerto Rico and other parts of the Caribbean, saying a disturbance in the Atlantic is likely to soon strengthen into a tropical storm that might eventually reach the U.S. mainland.
The storm, which could be named Isaias if it gains force, was expected to move through the Leeward Islands on Wednesday, and near or over the Virgin Islands and Puerto Rico on Wednesday night. It would be over Hispaniola on Thursday.
The U.S. National Hurricane Center in Miami issued warnings for Puerto Rico, the British and U.S. Virgin Islands, Antigua, Barbuda, Dominica, Martinique , Montserrat, St. Kitts and Nevis, Guadeloupe, Martinique, St. Martin, St. Maarten, Saba, St. Eustatius and portions of the Dominican Republic.
A tropical storm warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours.