- ke"Semaryp-of-weathey immediately price to Bay: from 39,000 to 38,000. condition had been prevalent throughout the“ area duringthe ten day period pricr to B-Day, veiled from the surface to 8000 feet. reported. the evening defore the shot. Easterly vinds had pre- nly one rain shower toon E feet.The came general ! vefonerGefay there had been scattered eumilus and broken cirrus, Thies ? . Tes ewniag= - -. 2. The Weather Forecast: 2/8 cumlus, bases 2000 feet; 2/8 strato= cumulus, bases 6000 feet; 4/8 thin cirrus, base near 38,000 feet; widely acattered light showers. &e Oteerved weathers stratus (barely discernible); 5/8 ‘no showers at shot site. eumilue, base 2000 feet; 1/8. alto~ to 6/@ thin cirrus, base 30,000 fect; be Commente on weather: Wilson 1 (reconnaissance aireraft near shot site) reported 2/8 to 4/8 cumlus pricr to shot time. Immediately before the device was detonated 1/8 altoetratus was reported which inereased te become 5/8 altoetratus at 25,000 feet by 1130, 1% OGRE Wiles 2 reported 6/8 cirrostratus layer at 40,000 feet. The summation of the altostratus and cirrestratue layers formed a broken to oversast conditicn @uring the rest of the day. No rain showers were reported, 35 The Wind Forecast: HEIGHT. HLS (tsa Ft) ; 90 80 70 He38 SE/5-15 LO 35 30 25 20 =. S/1$-2$ 10 1§ 360/10-15 oes O5S0/lO LtaVer LtaVar SW/10=20 220-250/20 2202250/20 230/1s 230/Ls 250/24, 2590/2 260. 260 aeeia ao SE/15-25 180/5-10 8/15-20 Q90/10-15 230/16 2306 ag SAPs SFC Helh B/15-20 He® Heh OBSERVED LtaVar 050/10 LtaVer 050/10 340/27 200/16 220/38 220/hb 230/26 230/20 270/12 230/38 28 beer 230/20 270/12 250 280/23 070/20 070/20 060/12 SIKINT 100/18 100/1e 070 070/20 (8 Boum) O90/2 090/12 080/23 080, ae ae 080/09 oscnes | 60 55 7 He2h 260/ 260/38 2 oars omna sho ene Sas Lae 080.090/15~20 080=090/15-20 070/20 070/20 UAT K-20 we, ,