Nou (2). On the afternoon of 27 February, the wezther cutlcor was still favorable S-oz all considerations, especially radsavle. Besterly winds were fcrecast for snot time free the surface through 10,000 feet (080° to 090° at 1§ to 20 nets), asd south westerly aloft (230° to 250° at 145 to 25 mmots) up to the tron pause (55,000 feet) (Incl le. 4). (3) The briefing at 11004, Z8 February, indicated a forecast for shot site at shot time as 3/6 cumilus, bases 2,000, tops £,000; 3/8 cirzas at 39,000 feet and winds to be 070° at 20 mots at the surface (Incl 5). (4) Later that afternoon, the tren2 at 10,000 feet secane core southerly cue to the shift of the high sressure cell at 10,000 feet to the north. The retaining winds were forecast to recains essentially es given at the LLOO’ briefing (Incl No. 6). (5) The briefing given a midnight coricr to the shot time & 0645, 1 Uarch 1954, was as per the inclosed forecast (incl No. 7). (6) The briefing at OLOOM, 1 March, was essentially as ‘riefed at midnight. Tinds aloft from the CURTISS for 2L0C! ani 030M were @issussed (Inel No. 3). The levels 7,000 feet through 11,000 feet were under close scrutiny due to their vasiatilicy. A tendency for a westerly direction at that level ras forecast 4 (Inel lio. 8). Observed snot time winds ex weather: (1) ‘The observed snct time winds (06204, March 1654) fee the USS CURTISS, Eniweto: and Rengerik versus the forecss® suns for _ shot tine for the shot site are suows in Table I (next s2ze). . . Centr o- AY S “J be