1. Brigade reported being under enemy air observation after 19 : 00 hours. 2. Upper-air observations are the single most important data set driving a forecast model. 3. It also holds the record for the highest open-air observation deck in Japan. 4. Airborne FACs were supplied from the Air Observation Post Squadrons of the RAF. 5. The large, curved portion towards the top of the building is an open-air observation deck. 6. They were soon followed by hundreds of " Luftwaffe " personnel to establish air observation stations. 7. A huge circular hole punched through its top floors is to contain an open-air observation deck. 8. Despite " ideal " weather, air observation failed as it did on the II Corps front. 9. *1944 No . 664 ( Air Observation Post ) Squadron was formed at Andover, England. 10. The glass-clad viewing gallery and open-air observation deck on the 72nd floor, at a height of.
