The US National Hurricane Center says Maria’s maximum sustained winds early Friday are near 40 mph (65 kph).

A tropical storm warning is in effect for a host of islands: Antigua, Anguilla, Barbuda, Montserrat, Nevis, St. Kitts, the British Virgin Islands, the US Virgin Islands, Guadeloupe, St. Maartin, Saba and St. Eustatius.

A tropical storm watch is in effect for St. Barthelemy, St. Marteen, Martinique, Dominica, and Puerto Rico including Vieques and Culebra.

Meanwhile, Nate has prompted a tropical storm warning on Mexico’s coast from Chilitepec to Celestun. Nate’s winds are near 65 mph (100 kph) and the storm could become a hurricane.