Tropical Storm Erin is slightly intensifying and forecast to become a hurricane Friday with a chance of ultimately affecting the U.S. East Coast next week.

Tropical Storm Erin formed in the eastern Atlantic Ocean on Monday, forecasters said. The storm could strengthen to become the Atlantic's first hurricane of the season.

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.