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Mesoscale Discussion 1019
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   Mesoscale Discussion 1019
   NWS Storm Prediction Center Norman OK
   0630 PM CDT Tue Jun 13 2017

   Areas affected...Portions of the eastern TX/OK Panhandles into
   northwest TX...western OK...and southwestern KS

   Concerning...Severe Thunderstorm Watch 324...

   Valid 132330Z - 140100Z

   The severe weather threat for Severe Thunderstorm Watch 324
   continues.

   SUMMARY...1 to 4 inch diameter hail will continue to be the main
   threat with supercells across WW 324. This significant severe-hail
   threat should continue into western OK and southwestern KS for the
   next several hours.

   DISCUSSION...Impressive radar signatures depict multiple ongoing
   supercells as of 2330Z across the eastern TX/OK Panhandles, moving
   east-northeastward with time. In particular, a supercell moving from
   northern Hall into Collingsworth/Childress Counties in TX has had a
   consistent MRMS max hail estimate of 2.5-4 inches for the last 30
   minutes or so. Multiple large hail reports of 1-2.5 inches have been
   received with these thunderstorms so far, and a very favorable
   thermodynamic environment characterized by 2000-3000 J/kg MLCAPE
   will easily support a continued threat for large hail as convection
   develops into western OK and southwestern KS over the next several
   hours. In addition to the threat for large to giant hail, strong to
   locally damaging winds should remain possible. A tornado or two also
   cannot be ruled out in the next hour or two with any right-moving
   supercell as a strengthening southerly low-level jet elongates the
   hodograph at low-levels, thereby increasing effective SRH into the
   250-300 m2/s2 range. By 02Z and later, increasing convective
   inhibition will likely act to weaken any remaining storms.

   ..Gleason.. 06/13/2017

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

   ATTN...WFO...ICT...OUN...DDC...SJT...LUB...AMA...

   LAT...LON   33030245 38140029 38189846 36439859 34779927 33020003
               33030245 

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