Hurricane Sandy WRF-ARW air-parcel trajectories, seeded at 1000m every 4h, beginning at 1200 UTC 26 October 2012. Key features include: rapid ascent of air parcels to the tropopause near the inner core and along the outer radius of Sandy and its western flank. The potential temperature transition from cold to warm indicates the latent heating as parcels ascend with the storm's inner core.
