The oceanographic expert

Lifeguards were warning scuba enthusiasts to take extra precautions in the waters off La Jolla Shores  following a report of a strong underwater current that pulled about a half-dozen divers into deep water and made it difficult for them to surface. The group of divers reported getting caught in the unexplained undertow while roughly thirty feet underwater about 7:30 a.m., San Diego lifeguard Lieutenant Andy Lerum said. They said the phenomenon lasted about ten minutes and rapidly pulled them thirty to fifty feet deeper. Several described hanging on to the edge of the a deep submarine canyon in the area to keep from being dragged farther down. The divers eventually surfaced, feeling the grip of the current lessen as they reached the top, Lerum said. There were no injuries.
Lifeguards had no immediate explanation. They notified Scripps Institute of Oceanography personnel, who also were in the dark about what likely caused the anomalous marine condition.

(Dr. Seymour is interviewed at 1:45 into the program.)

The memoir

Learning to Whistle Like Dad is available from Create Space.

USNA 51, part one

USNA 51, part two

Seymour on Waves

The Third Seat

A novel about the early days of the space program, and an unusual group of astronauts going to the Moon, available from Amazon.