TABLE 58 BIKINI WIND DATA FOR OPERATION HARDTACK I — Altitude (MSL) feet 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 H+S hour _ Dir degrees 080 090 100 110 110 110 110 100 100 100 090 080 060 cCpeed mph 18 26 29 30 29 28 2k 2k 25 21 20 16 13 15 ,000 (040) (13) 20 ,000 2T0 12 16,000 18 , 000 23 ,000 25 , 000 30,000 35,000 40,000 45,000 50,000 53,000 55,000 60 , 000 65 ,000 NOTES: 1. 2. 3. 4. 030 350 270 (250) 230 200 210 250 250 --+260 090 080 13 03 15 (16) 21 33 ho LT 28 -20 22 28 H+G* hours H+95 hours Dir degrees oveed mph Dir degrees 090 110 100 080 100 090 080 080 080 090 090 090 O70 16 17 23 28 25 25 ok 23 28 30 30 21 el 090 080 090 090 100 100 100 O70 100 110 100 120 080 (070) O70 050 Calm Calm 280 2ho 210 210 2k0 220 2ko ----- “= CEDAR speed mph 18 22 25 26 28 26 25 ak 22 26 28 21 21 (20) (090) (20) Calm 340 05 20 17 Calm 10 17 25 47 39 46 38 --- -- 100 O60 340 300 220 210 220 220 230 --290 100 100 Numbers in parentheses are estimated values. Wind data was taken on board ship within 30 nautical miles of the Tower at Nan island, Bikini Atoll. Tropopause height was 51,000 ft MSL. 20 13 08 OT 16 L7 53 38 41 -09 26 31 The surface air pressure was 14.65 psi, the temperature 28.4°C, the dew point 76.3°F, and the relative humidity 794%. 280