Original: A mid- to lower-level circulation developed within the system as it tracked generally north-northwestward, and based on surface and satellite observations, it is estimated the system developed into Tropical Depression Seven at 1200 UTC on July 25 about 60 miles (95 km) east of Daytona Beach, Florida.
Simplified: According to surface and satellite observations, it is thought that the system became Tropical Depression Seven at 1200 UTC on July 25 about 60 miles (95 km) east of Daytona Beach, Florida.