The current forecast calls for Erin's winds to increase to 125 mph within five days, making it a strong Category 3 storm. A Category 4 storm has maximum sustained winds of at least 130 mph. Erin is expected to turn north at some point, staying away from Florida and the east coast of the United States.

R ecent 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.