Erin, the first hurricane of the season, is now forecast to become a Category 4 by Sunday. Here's where it could head in the week ahead.

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,