Tropical Storm Erin officially formed in the eastern Atlantic on Monday morning, just west of the Cabo Verde islands. This system is expected to continue moving west to west-northwest at 15 to 20 mph across the eastern and central tropical Atlantic.

Erin is expected to become a hurricane Friday, Aug. 15 and a major hurricane by Sunday morning. What Florida can expect from the storm.

Tropical Storm Erin continues its westward path across the Atlantic, expected to become a hurricane Aug. 15, and a major hurricane by Sunday morning.