Seer be ) POST=SHiT WEATHER: a. The weather efter shot time detericrared rapidly due to insecses local cleudiness. } The winds elo%t for Eniwetok and Zongerix were less fevorable from 2 fallout point of view (Incl No. 1 and 2). b. F Chart No. 11 is the computed air particle trajectories for 254% day, based on data available through 3433 hours. Acrlification of trajectory was essentially the same for 30,000 feet. The 25,000 Jost Ory the surface to 25,000 feet was in @ continual flux. nara other levels than those presented is in crder since the scatter free From 12,0X% to 18,000 feet the trajectories lie between the 10,000 and 20,0 foot } level patterns with the 18,00" foot most like the 20,000 foct tra- jectory and the 12,000 foot most like the 10,000 foot trajectory. Is other words, between 10,090 and 20,000 feet there mist have beer ¢-isiderable cispersion, with the 20,020 fost level having the oom xac> therly component of motion. From 6,000 to 6,000 feet, the trajectories egein start snowing northerly components, with the 6,000 foot ani delow trajectories being generally froz the ezst northeast. DISCUSSION: Uriefings: (1) The outlook on the corning of 27 February was very fevereble fren the radsefe point of view, ‘Tne wints for shot tine were fcre- at 50,000 feet. e 9 i) ef wu feet, an «et ~ easterly at 30,000 feet, southerir at Oc, ur cast to be easterly fron the surface through 20,000 feet, so-ieLh @ 6 & ou 5e : ! gn nl nm =~ ~we a Sp wees Tne situation was chenging siigitlr; 27 Secreery + [2 Tran vm ‘ 3). I'c. (incl shot day Would have been an ideal Saehey