HEADQUARTERS
JOINT TASK FORCE SxVil
APO 437
San Francisco, Caiifornia
21 July 1956
TEWA
BIKI#I OPSERVED WEATHER FOR 21 JULY 1956
AT DETONATION” TIME OSL6M
Sea Level Pressure
1009.3 mbs
Free Air Surface Temperature
Wet 3ulb Temperature
62° F
78° F
Dew Point Temperature
“7° F
Relative iumidity
gs ¢
Sea Water Temperature
Surface Wind
64° F
ESE 5 knots
Weather
No showers reported
Visibility
Over 10 miles
CLOUDS:
2/10 cumlus, bases at 2,000 ft.
1/10 cirrostratus, based at 30,000 ft.
STATE OF SEA:
Open Sea:
Wave heights 3 ft., period 6 seconds, direction 090°,
ARHA WEATHER SUMMARY FROM AIRCRAFT:
Scattered cwmlus clouds bases at 2,000 ft.
35,000 ft., tops at 36,000 ft.
1-5/8 cirros based at
BIKINI UPPER ATR SOUNDING:
Pressure
(illibars)
1000
850
700
645
616
596
582
500
Height
Termerature
310
4950
26.5
17.8
22.5
11.5
12500
3.5
-2.5
(Feet)
10310
1377
14,600
15223
1911;0
(°c)
7.5
Dew Point
(°c)
0.8
2.2
-10.5
- 6.5
-15.2
0.5
- 0.8
- 7.2
-16.5