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

Tropical Storm Erin formed Monday morning in the eastern Atlantic Ocean and forecasters expect it to become the first hurricane of the Atlantic season this week.

Forecasters say Tropical Storm Erin has formed in the eastern tropical Atlantic Ocean as Hurricane Henriette is strengthening in the Pacific Ocean. The Miami-based National Hurricane Center