HEADQUARTERS
JOINT TASK FORCE SEVEN.
APO 437
San Francisco, California
NAVAJO
13 July 1956
BIKINI OBSERVED WEATHER FOR 11 JULY 1956
AT DETONATION TIME 0556M
Sea Level Pressure
1010.2 mbs
Free Air Surface Temperature
Wet Bulb Temperature
Dew Point Temperature
Relative Humidity
Surface Wind
81.29
76,2
74..0°F
80.0%
90° ~ 8 knots
Visibility
10 miles
CLOUDS :
2/10 cumilus, bases estimated at 1800 feat
6/10 cumlus, bases estimated at 2000 feet
7/10 cirrostratus, bases estimated at 30,000 feet (transparent)
AREA WEATHER SUMMARY FROM AIRCRAFT: .
O600M - (Aircraft at 45,000 feet) Scattered to broken cloud layer based
at 30,000 feet, tops at 35,000 feet.
scattered) with tops to 35,000 feet.
Bikini Atoll.
Few cumlus (widely
Could not see surface or
,
0615M = (Aircraft at 44,000 feet just above broken to overcast cirrus
cloud layer to the west of Bikini) Scattered cirrus clouds 50
miles south of Bikini.
Few scattered cirrus to north and east
of Bikini with approximately 2/10 small cumilus at low levels.
Few cumulus tops to 25,000 feet.
STATE OF SEA:
Ocean Side: Wave height 5 ft., period 5 seconds, direction 080 degrees.
Sea water temperature - 83.0%,
Lagoon Side: Wave height less than 1 foot.