HEADQUARTERS JOINT TASK FQRCE SEVEN APO 437 San Francisco, California ‘31 May 1956 ENIWETOK OBSERVED WEATHER FOR 31 MAY 1956 ERIE. DETONATION TIME O615M Sea Level Pressure i. ‘Free Air Surface Temperature Dew Point Temperature Relative Humidity Surface Wind | : Visibility 1009.1 mb 80,39 °93.5°F (Wet Bulb 75. Lor) 80.2% 100° at 12 kts; gusts to 15 kts _ Over 10 miles CLOUDS © 1/10 cumlus; bases estimated 1500 feet (no tops reported - estimated to be at 3500-000 feet approximately 10 miles east of station) 2/10 altocumlus; bases esti.ated 19,000 feet; thin but opaque (possibly 1000 feet thick) 10/10 cirrostratus; bases estimated 30,000 feet; no tops reported (9/10 transparent) WEATHIR - He : No showers reported in local area. In general appeared clear and exceptionally goo visibility. No haze apparent. STATE OF SEA Ocean Side: Lagoon Side: Wave heights 4.5 feet, period 5 seconds, direction 090°, Wave heights less than 1 foot. XN ENIWETOK SOUNDING (3017002) Pressure (Millibars) 1000 850 796 700 693 600 500 423 a 00 Keight (Feet) Temperature (°C) 280 26,5 6,791 10,310 10,630 14,440 19,130 23,327 23 , 688 16.8 10.8 10.3 -00.9 -09.2 -15.3 ~14.21 4,920 2h720 (Oc) . 17.3 -16.4 Dew Point - , © 21.6 09.7 . ; 02.5 07.4 -~07.8 -16.2 -23.5 -29.2 ~-28.2 ~30.3 >