Subvortex Research Video Highlights illustrates and explains the Subvortex tornado research project conducted by the National Oceanic and Atmospheric Administration (NOAA) and the University of Oklahoma in late May and early June 1997, including the first successful intercept of a tornado by scientists with dual high-resolution Doppler radars on May 26th 1997. No actual tornado visible. Title sequence (26 sec) Lightning strike during non-tornadic thunderstorm (55 sec.) Interview of principal scientists (2 min. 30 sec.) Tornado chase with dual "Doppler on Wheels" (1 min.) First dual-doppler tornado intercept (1 min.) Credit (36 sec.)