Storm Prediction Center Mesoscale Discussion 1165

   Mesoscale Discussion 1165
   NWS Storm Prediction Center Norman OK
   0455 PM CDT Tue Jun 04 2024

   Areas affected...Southern Louisiana and southern Mississippi

   Concerning...Severe Thunderstorm Watch 391...

   Valid 042155Z - 042330Z

   The severe weather threat for Severe Thunderstorm Watch 391
   continues.

   SUMMARY...A few damaging wind gusts up to 60-65 mph and localized
   instances of marginally severe hail near 0.75-1.25" in diameter may
   continue to accompany a linear complex of thunderstorms through this
   evening.

   DISCUSSION...Latest radar and satellite imagery show an MCS
   progressing east-southeastward across portions of southern LA and
   southern MS. A moderately unstable air mass remains in place ahead
   of this system, where diurnal heating has resulted in surface
   temperatures climbing into the upper 80s and 90s, with dewpoints
   generally in the mid 70s. Recent trends from the POE VAD profiler
   indicate westerly 0-3 km shear has increased to around 50 kt over
   the past 30 minutes behind the system. This may support an
   increasing opportunity for bowing segments, and damaging wind gusts,
   oriented north-south on the eastern flank of the complex, and a
   general eastward progression into south-central/southeastern MS over
   the next 1-2 hours. In addition, brief instances of marginally
   severe hail will be possible within any of the more robust updrafts.

   ..Barnes.. 06/04/2024

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

   ATTN...WFO...JAN...LIX...LCH...

   LAT...LON   33039059 32149090 31169135 31079175 30849310 30589338
               29999303 29869260 29989164 30309029 31098976 31708971
               32448956 33068991 33129021 33039059