Ne (2). On the afternoon of 27 February, the wezther cuticox was still favorable Sroz all considerations, especizlly radsave. Besterly winds were fcrecast for snot time from the surfice ‘through 10,000 feet (080° to 090° at 15 +0 20 inets}, and south westerly aloft (230° to 250° at 14 to 25 mots) up to the tropopause (55,000 feet) (Incl No. 4). (3) The briefing at LOOM, 28 February, indicated a forecast for shot site at shot time as 3/6 cumlus, bases 2,000, tops 5,000; 3/8 cirras at 39,000 feet and winds to be 070° at 20 mots at the surface (Incl 5). (4) Later that afternoon, the trena at 10,000 feet became core southerly cue to the shift of the hich sressure cell at 10,000 feet to the north. The remaining Winds were forecast to recain essentially es given at the l10Ou briefing (Incl No. 6). (5) The briefing given at midnight orior to the shot time & 0645, 1 Uarch 1954, was as per the inclosed forecast (Incl Ko. 7). (6) The briefing at OLOOM, 1 March, was essentially as triefed at midnight. TEnds aloft from the CURTISS for 200% ent 030MM ‘were dissussed (Incl No. 3). The levels 7,000 feet through 11,009 feet were under close scrutiny due to their vasiability. .& tendency for a westerly direction at that level wes forecast (Incl Wo. 8). be Observed shot time winds ex weather: (1) ‘The observed shot time winds (0600U, 1 March 1654) froz the USS CURTISS, Eniwetox and Rongerik versus the fcreces® sinis. for . ° aon * _ shot tine for the shot site are snown in Table I (next p2ze). Catt