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Mesoscale Discussion 255
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   Mesoscale Discussion 0255
   NWS Storm Prediction Center Norman OK
   0833 PM CDT Wed Apr 03 2019

   Areas affected...Eastern TX Panhandle...Western/Central OK

   Concerning...Severe Thunderstorm Watch 36...

   Valid 040133Z - 040300Z

   The severe weather threat for Severe Thunderstorm Watch 36

   SUMMARY...Threat for hail will persist for the next hour or so. A
   downstream watch across western and central OK is not anticipated.

   DISCUSSION...Long-lived supercell currently moving into Tillman and
   Kiowa Counties in southwest OK continues to produce large hail (i.e.
   1.75" per a recent report in Jackson County). Downstream air mass is
   less unstable, largely a result of cooler temperatures and less
   low-level moisture, but the storm remains quite strong and
   well-organized. the well-organized nature of this storm suggests it
   will likely be able to persist within this less stable environment
   for next hour or two while gradually decreasing in strength.

   Farther northwest, increasing low to mid-level flow and resulting
   warm-air advection has fostered the development of elevated
   thunderstorms across the eastern TX Panhandle. The air mass here is
   unstable enough to support updrafts strong enough to produce hail,
   some of which may be above 1" in diameter. These storms will likely
   persist for the next several hours as they move eastward into
   western OK, aided by both a strengthening low-level jet and
   large-scale ascent attendant to the shortwave moving into the

   Currently, severe thunderstorm coverage is expected to be limited
   after Severe Thunderstorm Watch 36 expires at 03Z and downstream
   watch is not anticipated. However, convective trends will be
   monitored closely.

   ..Mosier.. 04/04/2019

   ...Please see for graphic product...


   LAT...LON   36260063 36530031 36829962 36759863 36249797 34999792
               34339834 33839917 33869993 34090034 34820096 35710103

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