LDAR Lightning "Jump" vs.
Melbourne NWS Severe Storm Warning (the latter issued on the basis of radar observations)
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Related links on this tornadic episode:
MLB Synopsis: http://sunmlb.nws.fit.edu/wbstorms/3meso.html
NSSL Radar summary: http://whirlwind100.nssl.noaa.gov/~gordon/osf/23feb98/23feb98.html