TABLE 60 BIKINI WIND DATA FOR OPERATION HARDIACK I 7 Altitude (MSI ) degrees Surface 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 12,000 14,000 15,000 16,000 18 , 000 20,000 23 ,000 25 000 30,000 35 ,000 40,000 45,000 50,000 55,000 65 ,000 70,000 72,000 fw 1. 2. H+5 hour feet 60, 000 NOTES: Dir Speed Dir POLAR H+E2 hours Speed mph degrees 060 O70 060 060 060 050 060 O70 O70 O70 060 080 100 (100) 110 120 150 220 260 --------+ ----- 14 22 2k 22 22 22 el 18 14 O7 13 22 18 (15) 13 16 12 O7 08 ------- O70 O70 080 080 080 090 090 080 080 O70 O70 O70 090 (100) 100 120 110 100 110 210 210 210 130 210 180 18 21 ek 22 20 15 14 17 20 al ek 26 21 (21) al 16 16 16 14 09 16 17 21 31 12 --+ ~+~ w= -“+ -- 090 090 080 2h 36 7 --- -- 090 mph 25 Numbers in parentheses are estimated values. Weather observations were made using the standard rawinsonde system on Nan Island (Bikini Atoll) adjacent to the Nan Tower. Additional data was taken on board destroyers. Tropopause height was 55,000 ft MOL. The surface air pressure was 14.62 psi, the temperature 27.9°C, the dew point 81.9°F, and the relative humidity 99%. 288