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Mesoscale Discussion 137
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MD 137 graphic

   Mesoscale Discussion 0137
   NWS Storm Prediction Center Norman OK
   0755 PM CDT Sun Mar 18 2018

   Areas affected...south central through southeast Texas

   Concerning...Severe Thunderstorm Watch 11...

   Valid 190055Z - 190230Z

   The severe weather threat for Severe Thunderstorm Watch 11

   SUMMARY...Storms will continue to pose a threat for isolated large
   hail and damaging wind gusts next couple hours primarily from a
   portion of south central through southeast Texas.

   DISCUSSION...Storms that developed earlier this afternoon are in the
   process of evolving into a cluster with embedded supercells from
   south central through southeast TX. Storms will continue east next
   couple hours. However, 00Z RAOBS from Shreveport and Lake Charles
   show a modest capping inversion near 800 mb suggesting increased
   surface-based convective inhibition with onset of nocturnal cooling.
   Thus while the storms will continue to pose a severe threat next
   couple hours, a weakening trend will probably commence by 03Z.

   ..Dial.. 03/19/2018

   ...Please see for graphic product...


   LAT...LON   31149548 31869470 31699396 31019366 30439396 30179484
               30069602 30489632 31149548 

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