980519 - The VORTEX armada left Norman mid-morning for Nebraska.  Our
eventual target was a supercell near Sydney, Nebraska, late in the
afternoon.  The fortuitous location of I-80 and US-30 gave us ample
opportunity to make repeated passes through the rear flank downdraft and
inflow region of the storm until darkness ended operations.  Excellent
lighting conditions provided opportunities for video data collection to
complement the mobile mesonet observations.