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Tornadoes

May 3, 1999 Doppler Reflectivity - Several supercell thunderstorms are evident on the radar reflectivity animation from 3 May 1999. Note the classic hook shaped echo of each supercell and the classic precipitation pattern indicated by the color coding. The supercell that passed through Oklahoma City (OKC) and Moore produced a tornado ranked as F-5 during part of its life cycle.

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois