A U.S. Coast Guard (USCG) helicopter crew medevaced the captain of a tanker approximately 50 miles offshore of Corpus Christi Wednesday morning. Watch the video here. Watchstanders at the Coast Guard Sector Corpus Christi command center were notified Tuesday at approximately 4:30 p.m. that the 50-year-old captain of the Weser, a 422-foot oil and chemical tanker vessel was experiencing severe pain in his leg with a possible blood clot. A Coast Guard flight surgeon concurred with the need for medevac.