Erin was a Category 2 hurricane in the North Atlantic Ocean late Wednesday Eastern time, the National Hurricane Center said in its latest advisory. Erin is the fifth named storm to form in the Atlantic in 2025. Follow our coverage here.

Hurricane Erin is forecast to "substantially grow in size" as it moves across the western Atlantic, according to the National Hurricane Center.

Erin has strengthened into a Category 4 hurricane as of Saturday. It's the first hurricane of the 2025 Atlantic season, which officially formed mid-Friday morning. Some Tropical Storm watches remain in effect for parts of the northern Leeward Islands, according to forecasters at the National Hurricane Center.

The first area has been under the eyes of the National Hurricane Center for a few days as it emerged off Africa’s west coast.

Erin developed in the eastern Atlantic, moving westward from the Cabo Verde Islands at about 20 mph (32 km/h). Infrared sensors on NOAA's GOES-19 satellite reveal colder cloud tops and deep convection near the center — signs of a strengthening system feeding on warm ocean waters.

Tropical Storm Erin is tracking west over the open Atlantic Ocean on Tuesday and forecasters expect it to become the first hurricane of the Atlantic season this week.

Erin, which became a Category 5 hurricane Saturday morning in the eastern tropical Atlantic Ocean, but has now weakened to a Category 2.

Forecasters are tracking three systems in the Atlantic basin, including one with a medium chance of becoming a tropical depression later this week.