CHARLESTON, S.C. — The​ Coast Guard rescue three teenagers after the vessel they were on ran aground near St. Catherine’s Sound, Georgia, Wednesday. A​ Coast Guard Air Station Savannah​ MH-65 Dolphin helicopter​ crew arrived on scene, embarked the teenagers, and transported them to Hunter Army Airfield. Coast Guard Sector Charleston​ command center watchstanders received a report at 5:11 p.m., of Leer másCoast Guard rescue 3 teenagers after vessel runs aground near St. Catherine’s Sound[…]