WAHOOEVENT OPERATION AC The WAHOO underwater detonation took place at 1330M, 16 May 1958. The device was positioned 500 feet below the surface, two miles southvest of Keith Island, Eniwetok Atoll. The water colum rose immediately to between 1,200 feet and 1,500 feet, followed by a base surge to approximately 1,700 feet, and fell back into the sea, leaving no visible cloud. Fallout and contaminated surface water remained well within the forecast fallout | area and published radex. the shot. Re-entry hour was declared one minute after A helicopter survwy was wade at Ht+4 hours with moderate readings encountered along the southwestern chain, Island. Leroy recorded on Maximum intensity was 30 mr/hr, AVATLABLE BEST cory . 72 TAB A