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Mesoscale Discussion 543
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   MESOSCALE DISCUSSION 0543
   NWS STORM PREDICTION CENTER NORMAN OK
   0614 PM CDT FRI MAY 09 2014

   AREAS AFFECTED...PORTIONS OF CENTRAL/N TX INTO ARKLATEX

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 092314Z - 100015Z

   PROBABILITY OF WATCH ISSUANCE...40 PERCENT

   SUMMARY...ISOLATED SVR TSTMS CAPABLE OF LARGE HAIL AND DAMAGING
   WINDS WILL REMAIN POSSIBLE THROUGH AROUND 02Z. CONVECTIVE TRENDS
   WILL CONTINUE TO BE MONITORED AND A WW IS POSSIBLE.

   DISCUSSION...ISOLATED SVR TSTMS HAVE DEVELOPED FROM CENTRAL/N TX
   NEWD INTO THE ARKLATEX REGION LATE THIS AFTN. THESE TSTMS HAVE
   DEVELOPED ALONG AND SE OF A SFC THETA-E GRADIENT/WEAKENING FRONTAL
   BOUNDARY IN AN ENVIRONMENT CHARACTERIZED BY MOD-STG MLCAPE AND 30 -
   35 KTS OF EFFECTIVE SHEAR. NWD-MOVING OUTFLOW FROM CONVECTION ACROSS
   S TX ALSO APPEARS TO BE PROMOTING ADDITIONAL DEVELOPMENT OVER WRN
   PORTIONS OF DISCUSSION AREA...ALONG WITH SUBTLE FORCING FOR ASCENT
   ASSOCIATED WITH AN IMPULSE MOVING EWD THROUGH BASE OF UPPER TROUGH.
   MULTICELLS AND SUPERCELLS WILL REMAIN POSSIBLE THROUGH THE EVENING
   HOURS POSING A RISK FOR LARGE HAIL AND DAMAGING WINDS. CONVECTIVE
   TRENDS WILL CONTINUE TO BE MONITORED AND A WW IS POSSIBLE PRIOR TO
   00Z.

   ..BUNTING/THOMPSON.. 05/09/2014


   ATTN...WFO...LZK...SHV...HGX...FWD...

   LAT...LON   31829700 32019706 32509676 33909369 33229269 32399340
               31419585 31519664 31639680 31829700 

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Page last modified: May 10, 2014
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