Erin developed in the eastern Atlantic, moving westward from the Cabo Verde Islands at about 20 mph (32 km/h). Infrared sensors on NOAA's GOES-19 satellite reveal colder cloud tops and deep convection near the center — signs of a strengthening system feeding on warm ocean waters.

Tropical Storm Erin is moving west through the Atlantic Ocean and is expected to strengthen into the first hurricane of this season. In fact, the storm could reach major hurricane status by late this weekend.