HEADQUARTERS
JOINT TASK FORCE SEVEN
APO 437
San Francisco, California
6 June 1956
SEMINOLE
ENIWETOK OBSERVED WEATHER FOR 6 JUNE 1956
AT DETONATION TIME 1255M
Sea Level Pressure
1010.5 mbs
Free Air Surface Temperature
Wet Bulb Temperature
Dew Point Temperature
86,9
° 99.29
76,59
Relative Humidity
Surface Wind
Visibility
CLOUDS
71.0% .
0950 at 11 knots
Over 10 Miles
.
2/10 cumilus; bases estimated at 1500 ft, tops estimated below 4000 ft.
1/10 stratocumlus; bases estimated at 3500 ft, tops below 4000 ft.
No middle clouds.
7/10- cirrostratus; estimated at 30,000-ft; very thin (al transparent).
AREA WEATHER SUMMARY FROM AIRCRAFT REPORTS
Small scattered cumulus in area 100 miles to the east and as far north
and south as the eye could see from 8,000 ft. Tops seemed to increase near
Eniwetok to 3500-4000 ft. and total 3/8 sky coverage outside lagoon. No
towering cumulus observed. Appeared to be a line of scattered cumulus about
15 miles north of the atoll with tops rising to 6-8,000 ft. No showers observed.
t
STATE OF SHA
Ocean Side: Wave heights 4 feet, period 6 seconds, direction 090°,’
Lagoon Side: Wave heights about 1 foot,
ENIVWETOK UPPER AIR SOUNDING (060000Z)
‘Pressure
(Lillibars)
1000
850
700
600
500
1,00
347
Height (Feet)
.
34,0
4,980
-
.
10,360
44,510
19;, 260
21,870
28, 281
Temperature
(°c)
.
27.5
18,2
09,2
02.2
-07.5
~17.5
24.5
*
Dew Point
(°C)
22.2
10.8
02,2
-,.5
~20,2
-31.2
37.8