ame fue, 28 February 1954 SEDRAMDUZ FOR RECORD SUBJECT: 3+1,1100X Command Briefing 1. Persons present at the 5-1, 1LOOM Command Briefing were: Major General Clarkson Dr. Graves . \ Brigadier General McGinley Rear Admiral Sruton lr, Reeves i>. Gibbons Colonel Cowart It. Colonel Earbour Lt. Comnanier Ladden } : | } che briefing wes conducted by: It. Colonel Bonnot Captain Meynerd, USH Lt. Colonel House 2. The 270000Z February Teather Distribution Chart, with the 2703002 February streamline - superimposed thereon was used for the present situa- tion briefing. The undersigned menticned the frontal system funnel jast 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 Bikini which was also remzining rather stationary. The undersigned further asptioned the easterly flow from the surface to 10,000 feet; the south ezsterly 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: 3/8 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 260300K February to 010300M March (Incl 2). ‘The undersigned described the air particle tre=- . . jectory forecast stating that all of fie trajectories were to the EE ex ; 3. Colonel House et this point continued witb the Radsafe portion +} cept the 10,000 feet one and the 60,000 ones which were westerly. of the briefing. 2 Incls 2. “ind forecast bd. arez forecast Dsl § J Oifferye!” It Colonel, OSAP saff weather Officer geeher