Wbiw surroundingland or water area to unintentional radioactive contdnationa (C) The mechanism of meteorologicalprocesses for the site should be adequately understood ad the weather predictions for the site demonstrated to be of a high and reliable accuracy. The Marshall Islands in the maindo not meet these meteorological requirenmnts. (a) First, xtil.y cIoudy Co-ti-, generally four to six tenths cumulus bases 2,000 feet and tops variable to 10,000 feet prevail over the Isl.arxls.Scattered light showers are comsm throughout the year. For expetints requiring a minimum of cloudiness, this tropical area is a poor choice. Probably the most vivid exauple of the sensitivityof the prevailing cloudiness to an experimental operation was the Able-day test at Bikini. For this test, a minimum cloudiness was almost mandatory. A bomb drop would have been impossible hsd the average Marshall Islati cloudiness prevailed on’Able4sy. \ In the practice days leading up to Able-day, bomb dropping aircraft frequently aborted for failure to see the target because of clods. The fact that Able-day was successful does not alter the fact that for an average expectancy, the mSssion should have failed ad that a SECTION XIX 66 S&0&H”