Hurricane Erin, the first major hurricane of the 2025 Atlantic hurricane season, rapidly intensified Friday night, with the storm now reaching Category 5 strength with sustained winds of 160 mph.

Hurricane Erin has turned into a Category 4 storm, rapidly powering up over the course of 24 hours, the National Hurricane Center said.

Hurricane Erin weakened slightly on Sunday during an eyewall replacement cycle but will grow larger and stir up surf along the U.S. east coast.

Erin has been upgraded to the first hurricane of the 2025 season in the Atlantic, according to the National Hurricane Center. As of the 11 a.m. advisory, Erin was located about 460 miles east of the Northern Leeward Islands and had maximum sustained winds of 75 mph with a minimum central pressure of 996 mb.

Erin will likely cause heavy surf and rip currents along the Eastern Seaboard starting mid-next week, but nothing in the way of rain, surge, or wind.

Hurricane Erin, now Category 5, brings risks from the Caribbean to the U.S. coast, raising safety and economic concerns beyond its projected path.