Forecasters say Tropical Storm Erin, which formed in the eastern Atlantic Ocean on Monday, is expected to become the Atlantic's first hurricane of the season. The storm formed just west of the Cabo Verde islands,

Tropical Storm Erin is still expected to become the first hurricane of the season this week as a new threat in the Gulf of Mexico emerges. Here's what to know.

Forecasters say Erin will likely become a hurricane in a couple of days, but it's still too early to determine what sort of impacts the storm could have, if any, on the U.S. East Coast.