. . = ~~ ~ nen 1. SEMINCLE was cetcratcd cn the ground at BUGON Islan] (GRUNE) in the EXTETOK Atoll at 22559M, 6 cune 1256, The device was cussed ine 50-foot Cianeter, 32-fcot high tenk of saa verter. 2, Fallout precietion vas based or ¢ rexirun yleld cf 1© kilotons an2 a 39,000-fcot eleat height. 16,009 feet, Aewsselly, the cle:d rose to only about The lower po:-tion of she cleuc folle:ed th: trade winds moving west, while the upper one-f42th wes ecuglht in lo: velocity vesverlies. The fellout folleved tre iredicted reths hovever, intensities hierar thar those predicted were enectunter2d on ROCAIRINK (HE.N), the nearest elend west of the shot site. 3. POV airerett based et Kvarelein “lew the tar raciolozicel reconnaissance missions y YOKE end YOKE ZT, on SEVUNUE-Day. YOSE pattern, te the Soutiest of EXIWETORK, encountered no radiat.on and vas secured at 1700é, 6 June. A second P2V, YOKE I, fl_ew a pattem over the SVIWETOX legoon calculated to interceyt any moverem of racioactive fallcut in the direction of the task force fleet. No reiicactivity was encountered. This aircre?t also conducted a legoen ard atoll survey et EVIVETCH and retarned », s. to bese at 1655 4!, 6 cun es / a, Syre ecctutelane al BESY ‘ - ek _ my oe f w+oe ae a