TABLE 10 ENIWETOK WIND DATA FOR OPERATION IVY Altitude (MSL) feet Surface 5 000 10,000 15,000 20 , 000 25 ,000 30,000 40,000 50,000 60,000 70,000 80 , 000 90 , 000 100 ,000 110,000 120 , 090 130,000 135,000 NOTES: 1. 2. H-hour Dir degrees Speed mph 090 090 095 115 125 170 220 230 220 05 16 17 17 14 15 20 17 14 100 085 280 250 300 o4O Calm Calm 23 ele) le 23 23 06 Calm Calm oho MIKE 09 Tropopause height was 56,000 ft MSL at H-hour. The surface air pressure was 14.66 psi, the temperature 29.4°C and the dew point 23.8°c. 54