me on ‘ ‘ ' HEADQUARTERS . JOINT TASK FORCE SEVEN APO 437 San Francisco, California 18 June 1956 . OSAGE ENIWETOK OBSERVED WEATHER FOR 16 JUNE 1956 AT DETONATION TIM 131M Sea Level Pressure Free Air Surface Temperature Wet Bulb Temperature Dew Point Temperature Relative Humidity Surface Wind Visibility 1008.5 mb 85.9°OF 79 OOF 76.6 Th .O% 140° - 11 knots 10 miles CLOUDS: al 3/10 cumilus; estimted bases at 1800 ft., tops 5-7,000 ft. cumulus in all quadrants. Towering Less than 1/10 altostratus; estimated at 9,000 ft. (thin) 6/10 cirrostratus; based at 30,000 ft. (very thin and transparent) AREA WEATHER SULMUARY FROM AIRCRAFT: 5/8 to 6/8 cumilus clouds within 60 miles (all directions) of Eniwetok. Cumlus based at 1600 ft. with 2/3 of tops at 5,000 ft.; remaining 1/3 tops to 10,000 ft. and an occasional top to 20,000 ft. at 30,000 ft. Rt nee starve 2 res Boe mr nee RADAR OBSrcRVATIONS: Cirrostratus (5/8) based : , DRA Towering cumulus all quadrants within 25 miles of station with tops measured at 10-12,000 ft. Towering cumlus between 25 and 75 miles of station with tops measured at 15-20,000 ft, STATE OF SEA: Ocean Side: Wave heights 3.5 ft., period 6 seconds, direction 100°. Lagoon Side: Less than one foot, _ 40