The National Hurricane Center issued its first advisory on the fifth-named storm of the Atlantic hurricane season at 11 a.m., warning Erin could become a hurricane by Wednesday, Aug. 13 and a major hurricane by Saturday, Aug. 16, as it moves quickly west across the Atlantic.

Tropical Storm Erin formed Monday and is expected to become a major hurricane as it moves across the Atlantic Ocean, according to the National Hurricane Center, though the potential risks to the U.S. remain unclear.

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.