le (2). On the afternoon of 27 February, the westher outlcor was still fevorable from all considerations, especizlly radsafe. Easterly winds were fcrecast for snot time froc the surface through 10,000 feet (080° to 090° at 15 +0 20 knets}, and soutte westerly aloft (230° to 250° at 14 to 25 kmots) up to the trop pause (55,000 feet) (Incl No. 4). (3) The briefing at LLOOM, 28 February, indicated a forecast for shot site at shot time as 3/6 cumilus, bases 2,000, tops 5,000; 3/8 cirrus at 39,000 feet and winds to be 070° at 20 imots at the surface (Incl 5). (4) Later that afternoon, the trenz at 10,000 feet became more southerly cue to the shift of the high aressure cell at 10,000 feet to the north. The remaining winds were forecast to remain essentially es given at the LLOOM briefing (Incl No. 6). (5) The briefing given at midnight orior to the shot tine a& 0645, 1 Uarch 1954, was as per the inclosed forecast (Incl Ko. 7). (6) The briefing at O400M, 1 March, was essentially as briefed at midnight. Tainds aloft from the CURTISS for 2400 eni 039m! were @issussed (Incl No. 3). The levels 7,000 feet through - 12,000 feet were under close scrutiny due to their variability. _ & tendency for a westerly direction at that level was forecas: (Incl lio. 8). b. Observed shot time winds ex weather: (1) The observed shot time winds (04600, 1 Larch 1654) from the eo ommn USS CURTISS, Eniwetok and Rongerik versus the fcrecéest +o : . =.’ . shot tine for the shot site are shown in Table I (next pace). centr for