REPORTS OF RAIN DURING BRAYO FALLOUT Transcripts of post-cetonation briefings suzgest that seli-induced rainout oveurred for a short time aftec Bravo was detonated. The crew of the Japanese fisning ship, No. 5 Fukura Maru (Lucky Dragon), while fishing downwind just outsice the exclusion zone, noted that the initial fallout on their ship was accompanied by "a light rain or drizzle.) It is unlikely tnat this was a continuation of the self-induced rainout, some two or more hours after Bravo's cetonation; it was orodably a natural rain system superimposed on the debris cloud. Another report of rain during Bravo fallout was made by a group of Rongelap natives after evacuation. [8] They lived in Rongelap Village, on the southern part of Rongelap Atoll, and stated that it "rained a little” during the afternoon of March ist. Another interview with an American Air Foree radio operator (8] who had seen on Rongerik Atoll prior to evacuation disclosed that "rain commenced about 2100 [LST] and continued for 30 minutes." Finally, the S. S. Roque, owned by Micronesian Lines, left Kwajalein at 0345 LST and arrived at Utirik at about noon on March 2, 1954. The ship left Utirik (apparently a few days later) and arrive at Majuro Atoll on Maren 7. A radiological survey at Majuro disclosed radiation readings of 10 to 30 mr/h on March 7. The ship's captain mentioned that he had encountered rain squalls during his voyage, but was not specifie about where or when. It appears certain that the S. S. Roque encountered Bravo fallout, possidiv accompanied by rain showers, either while 2D9roaching or while in harbor at Utirik. If 10 mr/h are "grown back"to five or six days earlier (when the Bravo debris cloud passed near Utirik), the dose rate is astimated at about 100 mr/h.