Near sunset last Nov. 6, commercial fisherman John Genther of Madison was steering his boat back home after a day of catching whelk when he spotted a bright blue object about a half mile ahead in the water. As he maneuvered closer, he realized it was a man wrapped in winter clothing, without a life preserver, clinging to the side of an overturned skiff in 55-degree water. Genther immediately recognized the signs of hypothermia and knew what to do, thanks to a first aid training he completed less than two weeks earlier.“You saved someone’s life,” said Nick Lajoie, commander and chief of response for Coast Guard Sector Long Island Sound, speaking to Genther and a roomful of attendees at a ceremony on Feb. 8 honoring the heroic act. “It’s a big deal.” …