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Mesoscale Discussion 914
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   Mesoscale Discussion 0914
   NWS Storm Prediction Center Norman OK
   0202 AM CDT Mon May 29 2017

   Areas affected...deep south Texas

   Concerning...Severe Thunderstorm Watch 297...

   Valid 290702Z - 290900Z

   The severe weather threat for Severe Thunderstorm Watch 297

   SUMMARY...A bowing band of storms continues moving east across deep
   south Texas (within WW 297) where local severe risk continues.

   DISCUSSION...Latest radar loop continues to show a bowing cluster of
   storms that remains well-organized from a reflectivity perspective,
   but which continues moving east at a rather modest 30 kt.  Recent
   wind measurements from affected observation sites have been below
   severe levels (around 40 mph), while MRMS MESH continues to suggest
   only marginally severe hail at best.  With weak mid-level flow
   across this area likely contributing to a somewhat limited severe
   risk, the well-organized nature of the convective cluster and
   favorable thermodynamic environment ahead of the storms (mixed-layer
   CAPE in excess of 3000 J/kg across the area) suggest that local risk
   for severe weather will persist until storms move offshore over the
   next 2-3 hours.

   ..Goss.. 05/29/2017

   ...Please see for graphic product...


   LAT...LON   27489870 28229859 28279661 27269730 25929701 25759735
               26009865 26389931 26989849 27489870 

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