Mesoscale Discussion 0508
   NWS Storm Prediction Center Norman OK
   0713 PM CDT Mon May 03 2021

   Areas affected...east-central Alabama

   Concerning...Severe Thunderstorm Watch 128...

   Valid 040013Z - 040115Z

   The severe weather threat for Severe Thunderstorm Watch 128
   continues.

   SUMMARY...Ongoing severe storms may pose a risk for isolated
   damaging wind gusts and severe hail after the 0100z watch expiration
   of WW128. A local extension maybe needed.

   DISCUSSION...A cluster of severe storms across east-central Alabama
   in the vicinity of Montgomery has shown occasional organization and
   severe characteristics over the last hour. These storms are ongoing
   in a partially modified unstable airmass with surface temperatures
   in the upper 70s and dewpoints in the upper 60s F. SPC mesoanalysis
   indicates between 2000-2500 J/kg of MLCAPE with 30-40 kts of
   effective shear. The loss of diurnal heating should result in only
   marginal boundary-layer cooling suggesting that storms may retain
   intensity beyond 0100z. Given the favorable parameter space and
   occasional updraft rotation noted, isolated damaging wind gusts and
   severe hail will remain possible. A local extension of WW128 may be
   needed to account for the threat past 0100z.

   ..Lyons.. 05/04/2021

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

   ATTN...WFO...BMX...

   LAT...LON   32068532 32008545 31978590 32018616 32148638 32388678
               32628694 32898669 32968628 33008561 32978524 32768516
               32558507 32408507 32268515 32068532