Tropical Storm Erin is forecast to strengthen into the first hurricane of the Atlantic season by Saturday morning and then become a major Category 3 hurricane by Sunday morning as it passes north of Puerto Rico. But as of now, Erin is not expected to pose a direct threat to the U.S.

Recent spaghetti models indicate that Tropical Storm Erin, which meteorologists warn has the potential to strengthen into a hurricane by Friday, is unlikely to directly hit the U.S. coast. Forecasters say Erin could develop into the first major hurricane of the 2025 season.