Original: Around 11:00 am EDT (1500 UTC), they designated the system as Tropical Depression One while it was located about 310 mi (500 km) south of Providence, Rhode Island.
Simplified: On May 28, the NHC started to monitor the storm again and on 11:00 am EDT (1500 UTC), they declared the storm to be a tropical cyclone and named it Tropical Depression One. At that time, the storm's location was about 310 mi (500 km) south of Providence, Rhode Island.