28 February 195h ae SEDRADUZ FOR RECORD gud, SUBJECT: 3-1,1100K Command Briefing 1. Persons present at the 5-1, LOOM Command Briefing weres Major General Clarkson Dr. Graves Brigadier General McGinley . ‘ Rear ddairal Sruton ir. Reeves Ll. Gibbons Colonel Covart It. Colonel Earbour , Lt. Comuanier ladden i : ; The briefing wes conducted by: It. Colonel Bonnot Captain Meynerd, USW It. Colonel Bouse 2. The 2700002 February Teather Distribution Chart, with the 2703002 February streamline - superimposed thereon was used for the present situa tion briefing. The widersigned menticned the frontal system funnel just below tiake, the deep trough associated with it which was reflected through { all levels to 60,000 feet; the present high aloft to the east of Sikin{ which was also remzining rather stationary. The undersigned further asp tioned the easterly flow from the surface to 10,000 feet; the south easterly becoming southerly and south westerly below aloft associated with this deep high east of Bikini. Next presented at the briefing was the forecast for shot time: 3/6 cumlus bases 2,000 feet, top 5,000 feet: 3/8 cirrus 39,000 feet with widely scattered showers. The winis were given as per the attached forecast (Incl 1). Mentioned tropopause as. 55,000 feet elso attached is the area forecast valid 280300 February to 010300M March (Inel 2). The undersigned described the air particle tre= jectory forecast stating that all of te trajectories were to the FZ ex cept the 10,000 feet one and the 60,000 ones which were westerly. 3. ‘Colenel House at this point continued with the Radsafe porticn of the briefing. / 2 incls 2. sind forecast . . ee b. Arez forecast sou 5 G fen+ Lt Colenel, USA? tafe weather Officer t t ft