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Mesoscale Discussion 413
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MD 413 graphic

   Mesoscale Discussion 0413
   NWS Storm Prediction Center Norman OK
   0742 PM CDT Sun Apr 19 2020

   Areas affected...Portions of Southern Mississippi

   Concerning...Tornado Watch 123...

   Valid 200042Z - 200115Z

   The severe weather threat for Tornado Watch 123 continues.

   SUMMARY...Based on recent radar and environmental data, a strong to
   potentially violent tornado with potential peak winds of 120 to 170
   mph EF3+ is likely ongoing.

   DISCUSSION...Recent radar signatures from KLIX as of 838 PM EDT
   reveal an intense supercell characterized by a 0.5 degree rotational
   velocity between 60 and 69 kt. A tornadic debris signature has also
   been noted on recent radar scans. These signatures are occurring in
   an environment characterized by STP between 3 and 4. Previous
   signatures within similar environments produced
   tornado-damage-estimated wind speeds from 120 to 170 mph and
   confidence is high for a strong to potentially violent tornado. A
   potential long-track tornado is ongoing and may continue based on
   the rotational velocity duration and the storm moving within a
   favorable downstream environment.

   ..Wendt/Guyer.. 04/20/2020

   ...Please see for graphic product...


   LAT...LON   31448900 31458864 31358843 31158842 31028853 30958882
               30948903 30938930 30998958 31198969 31418964 31438926

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