X . ! ‘ a . ">? } HEAD QUARTERS JOINT TASK FORCE SEVEN APO 437 San Francisco, California 22 June 1956 INCA ENIWETOK OBSERVED WEATHER FOR 22 JUNE 1956 AT DETONATION TIME 0956M 5 - Sea Level Pressure 1009.8 mbs Free Air Surface Temperature Wet Bulb Temperature Dew Point Temperature Relative Humidity 83.3°F 78.3 76.6% 81.0% Surface Wind Visibility 130° = 11 knots Over 10 miles CLOUDS: 2/10 cumlus; bases estimated at 1800 ft., tops 5-8,000 ft. (moving| from southeast). ; 10/10 cirrostratus; bases estimated at 23,000 ft., tops over 30,000 ft. (all opaque). WEATHER : DNA No showers observed, : AREA WEATHER SUMBIARY FROM AIRCRAFT: Narrow band of scattered cumilus clouds averaging 3/10 to 4/10 coverage to the southeast of GZ. (Distance not reported) Tops of cumlus at &,000 ft. Cirrostratus overcast based at 25,000 ft. (measured) with tops at 31,000 ft. Cirrus opaque and dense. Target area was clear of cumulus clouds at 093M. STATE OF SEA: Ocean Side: Wave heights 6 ft., period 7 seconds, direction 090°. Lagoon Side: Wave heights 1.5 ft. ENIWETOK UPPER AIR SOUNDING (Release time 0910hi) Pressure (Millibars) 1000 850 804 778 700 600 . 580 Height Temperature 280 4,920 2505 1742 7 shh7 10,320 14,480 15,420 152 10.5 01.8 -00,.5 (Feet) 6,562 Dew Point (°C) W.5 (°c) - ey: 2265 10,2 06,5 06.5 0342 ~07.5 -08.2 al