SPC Mesoscale Discussion 0329

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SPC Mesoscale Discussion 0329
Harry Weinman with the United States Storm Prediction Center

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The Storm Prediction Center’s meso-gamma mesoscale discussion #329. This discussion was issued while the 2023 Rolling Fork–Silver City tornado EF4 tornado was on the ground.

4462755SPC Mesoscale Discussion 0329Harry Weinman with the United States Storm Prediction Center

  Mesoscale Discussion 0329
  NWS Storm Prediction Center Norman OK
  0824 PM CDT Fri Mar 24 2023

  Areas affected...North-central MS

  Concerning...Tornado Watch 76...

  Valid 250124Z - 250215Z

  CORRECTED FOR ERROR IN SPATIAL DELINEATION

  The severe weather threat for Tornado Watch 76 continues.

  SUMMARY...An intense tornado (EF3+) is likely ongoing with a
  supercell tracking northeastward across western Sharkley County MS,
  and this storm should persist for the next 30-60 min.

  DISCUSSION...Latest radar data shows an organized cyclonic supercell
  tracking northeastward across western Sharkley County MS, with a
  VROT above 70 kt and well-defined TDS up to 13k ft -- indicative of
  an intense tornado (EF3+) given the parameter space (STP of 4). The
  downstream environment features a large, clockwise-curved hodograph
  per DGX VWP (around 430 m2/s2 0-1 km SRH) amid rich boundary-layer
  moisture. This will support the maintenance of this intense
  supercell toward the northeast for the next 30-60 min.

  ..Weinman.. 03/25/2023

  ...Please see www.spc.noaa.gov for graphic product...

  ATTN...WFO...JAN...

  LAT...LON   33109089 33379060 33659013 33758990 33688961 33548947
              33218950 33098973 32969006 32889039 32859067 32879088
              33109089

This work is in the public domain in the United States because it is a work of the United States federal government (see 17 U.S.C. 105).

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