(5) The last evidence of the existence of GEORGIA was noticed the next day when @ squall area, tracked by surface radar, passed just south of ENIWETOK moving rapidily westward, Weather at ENIWETOK was very poor during the day with overcast cloud cover, scattered squalls, and a 30 knot gusty wind from the east, (6) The total effect of GRORGIA upon Operation GREENHOUSE was a one day postponement of DOG shot necessary because of the heavy rainfall and the disruption of normal routine while preparing for possible emergency. b Doc SHOT: (1) DOG-X~RAY rehearsal was completed without incident. Briefing charts were finalized, times ef conferences established, and methods of presentation clarified, DOG-x-RAY weather forecasts were verified in all essentials, (2) DOG shot weather briefings commenced at H minus 78 hours, and continued at 12 hour intervals, with the Il minus 6 hours briefing ternminating formal conferences, At the first briefing, a generalized forecast for "average trade wind conditions! was issued, and the operation order was issued, (3) This forecast remained essentially unchanged, ‘The appearance of a cirrus cloud overcast on the morning of 7 April 1951 caused some alarm, but when it was established by a special flight that the base of the overcast was above 30,000 fcet, concern was eliminated, (4) In the late after-noon of DOG minus 1 (7 April 1951), & special reconnaissance was flown to the east of ENIWETOK ina C-47 manned by Weather Central personnel, A broken layer of strato-cumulus cloud was encountered, and based upon experience and calculations it was forecast to arrive over ENIWTOK at about O400, 8 April 1951, and to pass over by O600, (5) Weather conditions and the forecast were disc ussed in detail at H minus 6 hours briefing. ALL conditions were considered favorable, including upper winds for part icle fall-out, (6) The only departure from forecast weat her conditions resulted from the untimely arrival of the strato~cumulus cloud deck from the -east 10 minutes before shot time, causing some interference wit h ay! = “Lp erm er ; . te : a . . ‘ cr SP Sy Ee cnt fit ee pe Be tan ~~ oe Ee ENR pete wine <3 yy : TARY Sg bad Eke te" 3} PER RAG