YUMA EVENT OPERATION REDWING 1. The YUMA device was fired at O75GM, 28 May 1956, The shot was Si ced from a 200-foot tower on AOMOEN Island (SALLY) of ENIWETOX Atoll, ‘"h : YUMA cloud reached an estimated height of 8,000 feet, and mved to ~n2 East at approximately 10 knots, Ze a The fallout forecast was based on an expected yield of= es 200 feet. 3. DNA a P2vV surveys at H+] Hour indicated very light fallout at shot “xc int and essentially no fallout on the islands to the north and south £ shot site. lh. Reentry hour was established at H+14 hours. S. No detectable increase in radiation background was noted at the valsafe monitoring stations located South of the Proving Ground, —Tiq Jif SEVER Ett —— 50