Tropical Storm Don was the first tropical cyclone to make landfall in the United States during the 2011 season. The fourth named storm of the 2011 Atlantic hurricane season, Tropical Storm Don formed from an area of low pressure along a tropical wave, Don developed into a tropical depression on July 27, and on that same day, was upgraded to tropical storm intensity, based on data from a reconnaissance aircraft noted the presence of tropical-storm-force winds. From Wikipedia
