US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 985



   Mesoscale Discussion 0985
   NWS Storm Prediction Center Norman OK
   0400 PM CDT Sun May 26 2024

   Areas affected...portions of eastern Ohio into extreme western
   Pennsylvania...central West Virginia...extreme western
   Virginia...extreme western North Carolina...extreme eastern
   Tennessee

   Concerning...Severe Thunderstorm Watch 316...317...318...

   Valid 262100Z - 262230Z

   The severe weather threat for Severe Thunderstorm Watch 316, 317,
   318 continues.

   SUMMARY...The severe threat continues across Severe Thunderstorm
   Watches 316-318. Strong wind gusts are the main threat with a
   persistent QLCS. Large hail is also possible across far eastern TN
   and western NC, where supercells are ongoing.

   DISCUSSION...A long-lived QLCS with a history of wind damage
   continues to move eastward across the central Appalachians, where
   surface temperatures are above the 80 F mark. As such, enough
   buoyancy exists to support strong wind gust potential with the QLCS
   for at least a few more hours. Along the TN/VA border area,
   supercell development has recently occurred, where MLCAPE has also
   climbed to over 2000 J/kg, coincident with 50+ kts of effective bulk
   shear. Here, large hail is also a concern in addition to strong wind
   gusts.

   ..Squitieri.. 05/26/2024

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

   ATTN...WFO...RNK...PBZ...RLX...CLE...GSP...MRX...ILN...

   LAT...LON   40868378 41048339 41388189 41168076 40258053 38378034
               36288060 35758069 35638110 35548193 35558269 35538311
               35708338 36078328 36408229 36798174 37518150 38848160
               39638187 40318236 40868378 



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