LEGEND movement of a parcel of air from The trajectories represent the *bomb time". Each arrow-head at ncing comme area tok Eniwe the date-time group (GCT) at the The ent. movem hour 2 a sents repre the date and time (GCT) at which end of each trajectory represents ed that position. the indicated trajectory reach XHAY DAY TRAJECTOIES Beginning. _. April 14, 1948 | 1830 GCT Prepared by: Joint Task Force SEVEN Meteorological Unit,