Storm Prediction Center Mesoscale Discussion 975

   Mesoscale Discussion 0975
   NWS Storm Prediction Center Norman OK
   0452 PM CDT Sun May 25 2025

   Areas affected...Southeast TN...northeast AL...northwest GA

   Concerning...Severe Thunderstorm Watch 324...

   Valid 252152Z - 252315Z

   The severe weather threat for Severe Thunderstorm Watch 324
   continues.

   SUMMARY...A damaging-wind threat may spread east-southeastward into
   this evening.

   DISCUSSION...A relatively organized and long-lived QLCS is moving
   across northern AL and southeast TN late this afternoon. This system
   has been responsible for some tree damage across southern middle TN,
   and in the short term will continue moving across a moderately
   unstable environment, with MLCAPE approaching 1000 J/kg. As a
   result, damaging gusts will remain possible into early evening. A
   few smaller mesovortices were also noted as the QLCS came within
   close range of the KHTX radar, and these features may be capable of
   producing areas of more concentrated wind damage and possibly a
   brief tornado. 

   Eventually, this system will encounter decreasing instability toward
   the southeast corner of TN and adjacent north-central GA, with the
   instability gradient having more of a northwest to southeast
   orientation in this area. This may result in the system taking more
   of a southeast movement, though the longevity of the severe threat
   is uncertain. However, at least an isolated wind-damage threat may
   spread east of WW 324, and local expansion of the watch may be
   needed.

   ..Dean.. 05/25/2025

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

   ATTN...WFO...MRX...FFC...OHX...BMX...HUN...

   LAT...LON   35598574 35628490 35468453 35008424 34498414 34118447
               34078503 34188595 34538633 35158587 35598574 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN