Storm Prediction Center Mesoscale Discussion 748

   Mesoscale Discussion 0748
   NWS Storm Prediction Center Norman OK
   0611 PM CDT Thu May 08 2025

   Areas affected...Tennessee Valley into central Carolinas

   Concerning...Severe Thunderstorm Watch 239...240...242...

   Valid 082311Z - 090015Z

   The severe weather threat for Severe Thunderstorm Watch 239, 240,
   242 continues.

   SUMMARY...Several clusters of strong to severe thunderstorms will
   continue to affect the region through the early evening, before
   diurnal cooling weakens storms.  Large hail and locally damaging
   wind gusts are the primary concern.

   DISCUSSION...Recent regional radar imagery continues to show
   clusters of thunderstorms from middle TN and northern AL into
   southern WV.  Another broken line of storms extends from
   south-central VA into upstate SC.  Several of these storms continue
   to show loosely-organized rotating updrafts capable of hail and
   gusty winds.  Activity will likely begin to diminish in intensity
   during the next 1-2 hours as diurnal cooling occurs and instability
   weakens.  

   One area that may see continued convective development will be
   across southern NC into parts of northern SC - in vicinity of a weak
   mid-level shortwave trough seen in water vapor imagery.  CAPE values
   of 1500+ J/kg and sufficient westerly flow aloft may maintain a risk
   of severe storms for a few more hours.

   ..Hart.. 05/08/2025

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

   ATTN...WFO...AKQ...RAH...ILM...RNK...RLX...CAE...GSP...MRX...
   JKL...FFC...LMK...OHX...BMX...HUN...MEG...JAN...

   LAT...LON   35358753 36318606 37228446 38188261 37768047 36717843
               35207879 34318037 34188184 34288276 34628372 34408528
               33298718 33118820 33208873 33798847 34488808 35358753 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN