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Mesoscale Discussion 423
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   MESOSCALE DISCUSSION 0423
   NWS STORM PREDICTION CENTER NORMAN OK
   0922 PM CDT WED APR 22 2015

   AREAS AFFECTED...NWRN AND NCNTRL TX

   CONCERNING...TORNADO WATCH 95...

   VALID 230222Z - 230315Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 95 CONTINUES.

   SUMMARY...PLANS ARE TO REPLACE TORNADO WATCH 95 WITH A SEVERE
   THUNDERSTORM WATCH JUST PRIOR TO 03Z THAT WILL INCLUDE NWRN TX AND
   WRN PORTIONS OF NCNTRL TX JUST WEST OF THE DALLAS/FORT WORTH AREA.
   THE PRIMARY THREAT IS TRANSITIONING TO DAMAGING WIND AND HAIL THOUGH
   A TORNADO OR TWO REMAINS POSSIBLE NEXT HOUR OR SO.

   DISCUSSION...STORMS OVER NWRN TX JUST SOUTHWEST OF CHILDRESS APPEAR
   TO BE IN THE PROCESS OF CONSOLIDATING INTO A SMALL MCS...THOUGH SOME
   SUPERCELL STRUCTURES PERSIST. THE 00Z RAOB FROM FORT WORTH SHOWED
   ONLY A WEAK INVERSION AROUND 700 MB...AND AS STORMS ORGANIZE A COLD
   POOL...THEY WILL LIKELY CONTINUE TO FORWARD PROPAGATE SEWD THROUGH
   NWRN TX NEXT FEW HOURS SUPPORTED BY A MODEST /20-30 KT/ SLY LLJ.
   MUCAPE AROUND 1000 J/KG...STEEP MID-LEVEL LAPSE RATES AND 40+ KT
   EFFECTIVE SHEAR SHOULD PROMOTE ORGANIZED STRUCTURES INCLUDING BOWING
   SEGMENTS AND EMBEDDED ROTATING UPDRAFTS NEXT FEW HOURS.

   ..DIAL/THOMPSON.. 04/23/2015


   ATTN...WFO...FWD...OUN...SJT...

   LAT...LON   33019993 34129980 33689802 32649779 32309846 32639948
               33019993 

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