HEADQUARTERS JOINT TASK FORCE SEVEN APO 437 San Francisco, California 31 May 1956 ENIWETOK OBSERVED WEATHER FOR 31 MAY 1956 ERIE. DETONATION TIME 0615M Sea Level Pressure Free Air Surface Temperature Dew Point Temperature OS Relative Humidity Surface Wind Visibility 1009.1 mb 80,39 73.5°F (Wet Bulb 75.4°F) 80.24 100° 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 3500-4000 feet approximately 10 miles east of station) Sf 2/10 altocumlus; bases estiated 19,000 feet; thin but opaque (possibly 1000 feet thick) 10/10 cirrostratus; bases estimated 30,000 feet; no tops reported (9/10 transparent) WEATHER No showers reported in local area. exceptionally good visibility. In general appeared clear and No haze apparent. STATE OF SEA Ocean Side: Wave heights 4.5 feet, period 5 seconds, direction 090°, Lagoon Side: Wave heights less than 1 foot. ENIWETOK SOUNDING (3017002) Pressure (illibars) LOOO 850 796. 700 693 €90 500 423 417 Height (Feet) 280 4,920 6,791 10,310 10,630 14,440 19,130 235327 233, 688 Temperature (°C) 26.5 17.3 16.8 10.8 10.3 -00.9 -09.2 15.3 -14.1 Dew Point (°c) 21.6 09.7 02.5 O74 -07.8 16.2 ~23.5 -29.2 28.2 bl