Tropical Storm Erin formed on Monday in the far eastern Atlantic and is forecast to reach major hurricane strength by this weekend, the National Hurricane Center said.

Historically the first major hurricane of North American hurricane season doesn’t arrive until the beginning of September

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.