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Mesoscale Discussion 543
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   MESOSCALE DISCUSSION 0543
   NWS STORM PREDICTION CENTER NORMAN OK
   1222 PM CDT FRI MAY 08 2015

   AREAS AFFECTED...WESTERN PART OF NORTH TX/SOUTHWEST OK

   CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY 

   VALID 081722Z - 081845Z

   PROBABILITY OF WATCH ISSUANCE...95 PERCENT

   SUMMARY...SEVERE POTENTIAL IS EXPECTED TO STEADILY INCREASE
   EAST-NORTHEASTWARD THIS AFTERNOON ACROSS ADDITIONAL PORTIONS OF
   NORTH TX INTO WESTERN/SOUTHERN OK...INCLUDING A MULTI-MODAL-RELATED
   TORNADO/LARGE HAIL/DAMAGING WIND RISK. A TORNADO WATCH WILL LIKELY
   BE NEEDED EARLY THIS AFTERNOON.

   DISCUSSION...A COMPLEX STORM MODE INCLUDING SOME LOOSELY CLUSTERED
   SUPERCELLS IS EVOLVING AT MIDDAY ACROSS THE SOUTHEAST TX PANHANDLE
   AND WESTERN PART OF NORTH TX. AIR MASS DESTABILIZATION CONTINUES TO
   STEADILY OCCUR NEAR/JUST NORTH OF A PRIOR OUTFLOW BOUNDARY ACROSS
   WESTERN NORTH TX...WHILE THICKER CLOUD COVER HAS TENDED TO LINGER
   INTO OK AS OF EARLY AFTERNOON. THINKING IS THAT CLUSTERED SUPERCELLS
   WILL TEND TO PERSIST EAST-NORTHEASTWARD POTENTIALLY AS AN
   UPSCALE-GROWING COMPLEX INTO ADDITIONAL PORTIONS OF NORTH TX AND
   ADJACENT WESTERN/SOUTHERN OK CENTERED ALONG THE RED RIVER VICINITY.
   LARGE HAIL WILL LIKELY REMAIN THE PRIMARY RISK IN THE SHORT-TERM
   /EARLY AFTERNOON/...BUT DAMAGING WINDS/SOME TORNADO RISK SHOULD
   BECOME MORE OF A CONCERN AS ADDITIONAL BOUNDARY LAYER HEATING
   OCCURS.

   ..GUYER/CORFIDI.. 05/08/2015


   ATTN...WFO...FWD...OUN...SJT...LUB...AMA...

   LAT...LON   35190011 35249822 34589767 33369774 33109878 33519990
               34279994 34400036 35190011 

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Page last modified: May 08, 2015
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