HEADQUARTERS
JOINT TASK FORCE SEVEN
APO 437
San Francisco, California
12 June 1956
FLATHEAD
BIKINI OBSERVED WEATHER FOR 12 JUNE 1956
AT DETONATION TIME 0626M
Sea Level Pressure’
1012.9 mb
Free Air Surface Temperature
Dew Point Temperature
Relative Humidity
82.0°F
76 ,0°F
82.0%
Surface Wind
050° at 10 knots
Visibility
10 miles
CLEUDS
L/10 stratocumlus and cumlus; bases estimated at 2000 ft.
10/10 cirrostratus; bases estimated at 30,000 feet.
WEATHER: ©
oS
‘No shower activity reported.
Pressure
.
+
BIKINI UPPER AIR SOUNDING (1119002)
—
:.
Q&llibars) Lol
1000
947
850
770.
735
700
666
640 611
560
543
D2)
500 ~
4,00
356
300
c
Height
(Feet)
,
.
:
110
380
1,903
5,020
7,759
9,022
10,380
1,713
12,705
1,042
16,327
17,126
17,995
19, 250
24,840
275592
31,670
=
=
Temperature
(°c)
27.8
26.8
22.2
17.2
W.2 10.8
08 .5
06.8
05.2
02.8
- 02,8
—~O4L.8
-04,.2
08.2
-19.2
25.2
32.3
~~
Dew Point
(°c)
24.5
23.5
19.5
11.8
01.5
—02,2
-02.4
02.5
-08.8
06.2
~10.2
-20.5
-19.2
-11.8
-30.5
~37 05
MN