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Mesoscale Discussion 343
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MD 343 graphic

   Mesoscale Discussion 0343
   NWS Storm Prediction Center Norman OK
   0335 PM CDT Sat Mar 25 2023

   Areas affected...portions of central and southern Georgia

   Concerning...Severe Thunderstorm Watch 79...

   Valid 252035Z - 252200Z

   The severe weather threat for Severe Thunderstorm Watch 79

   SUMMARY...The severe threat continues across Severe Thunderstorm
   Watch 079. Damaging gusts and large hail are the main threats. A
   local WW extension in time is planned.

   DISCUSSION...Multiple strong to potentially severe supercell
   thunderstorms continue to progress across Severe Thunderstorm Watch
   079. MRMS mosaic radar imagery - 7 km CAPPI depicts an overall
   increase in storm intensity across the watch, with an increase in
   the number of storms with 30 dBZ exceeding 40 kft also noted. These
   storms are benefiting from a boundary layer experiencing maximum
   diurnal heating, overspread by a plume of 7 C/km mid-level lapse
   rates, contributing to widespread 2000+ J/kg MLCAPE. Despite
   departing deep-layer ascent, 40-50 kts of effective bulk shear
   remains across the warm sector as 80+ kts of 500 mb flow from an
   associated jet streak glances the region from the north. As such,
   supercell structures may persist and continue supporting mainly a
   damaging gust/large hail threat through the remainder of the diurnal
   heating cycle. Since Severe Thunderstorm Watch 079 expires at the
   top of the hour, a local extension in time is planned to address the
   persisting severe threat.

   ..Squitieri.. 03/25/2023

   ...Please see for graphic product...


   LAT...LON   31388508 32178379 32588267 32608239 32228224 31568235
               31048259 30758310 30648374 30678417 30858479 31388508 

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