Hurricane Erin restrengthened back into a Category 4 storm Sunday night as it churned over the Atlantic Ocean north of the Caribbean.Erin, the first Atlantic hurricane of 2025, exploded to Category 5 on Saturday before weakening to a Category 3 storm early Sunday morning and regaining strength later in the day.

Reports from NOAA and Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 75 mph. Steady to rapid strengthening is expected during the next two to three days, and Erin is forecast to become a major hurricane this weekend.

Tropical Storm Erin formed in the eastern tropical Atlantic on Monday morning and is forecast to grow into a major hurricane by the weekend, according to the National Hurricane Center. As of the NHC’s 2 p.