Note:
The US Navy Ship offshore of Myrtle Beach, South Carolina is the USS Carter Hall, an LSD that departed Morehead City, North Carolina.
The Hall is home-ported at Little Creek, Virginia.
The ship recently returned from a deployment and probably off loaded embarked Marine Corps personnel and equipment at Morehead City.
Morehead City is used by Marine Corps units assigned to Camp Lejeune, North Carolina....home of the 2nd Marine Division and MARSOC units.
There is no USS Morehead City shown on the current US Navy list of Ships.
https://www.navysite.de/ships/lsd50.htm
The search area is in about fifty feet of water....in an area that has a generally flat sandy bottom with a current that tends to the northeast. Visibility can vary from almost nil to like a swimming pool depending upon season and sea state.
Excellent weather the past few days.....warm, slack wind, ocean is almost flat.
https://tides4fishing.com/us/south-c...ity-pier-ocean