Tropical Storm Erin is expected to become a hurricane later today, Aug. 15, and a Category 4 hurricane with maximum sustained winds of 130 mph over the weekend. A major hurricane is a Category 3 or stronger, with maximum sustained winds of at least 111 mph.

Brief: Tropical Storm Erin is likely to become a hurricane in the next 48 hours, according to the National Hurricane Center on Aug. 12.

While a Gulf disturbance that moved into Texas on Friday seems to have run its course, Hurricane Erin in the western Atlantic intensifies.

A tropical storm watch remains in effect for St. Martin, St. Barthélemy and Sint Maarten, but the storm should largely spare the Lesser Antilles. Puerto Rico could see rain showers and blustery winds,

Hurricane Erin, which is the first hurricane of the 2025 Atlantic season and has developed into a dangerous Category 4 hurricane, moves westward near Puerto Rico in a composite satellite image August 16,