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Mesoscale Discussion 699
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   MESOSCALE DISCUSSION 0699
   NWS STORM PREDICTION CENTER NORMAN OK
   0858 PM CDT MON MAY 23 2016

   AREAS AFFECTED...ERN TX PANHANDLE...NWRN TX...WRN OK

   CONCERNING...TORNADO WATCH 199...200...

   VALID 240158Z - 240330Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 199...200...CONTINUES.

   SUMMARY...CONVECTIVE TRENDS OVERALL ARE DECREASING...ALTHOUGH
   ISOLATED INSTANCES OF LARGE HAIL...STRONG WIND GUSTS...AND A TORNADO
   REMAIN POSSIBLE. WW 199 AND 200 ARE SCHEDULED TO EXPIRE AT 03Z...AND
   TRENDS WILL CONTINUE TO BE MONITORED FOR POSSIBLE LOCAL EXTENSION OR
   NEW WW ISSUANCE.

   DISCUSSION...CONVECTIVE TRENDS ARE DECREASING ACROSS THE LOWER
   ROLLING PLAINS OF NW TX AND ERN TX PANHANDLE...ALTHOUGH ISOLATED
   STRONGER CORES ARE PERSISTING WITH HAIL REMAINING THE PRIMARY
   THREAT. ONE EXCEPTION IS WITH A NEARLY STATIONARY STORM OVER
   WOODWARD COUNTY OK...WITH A RECENT HISTORY OF PRODUCING A
   TORNADO...AND THIS APPEARS TO BE INTERACTING WITH REMNANTS OF AN
   EARLIER OUTFLOW BOUNDARY WHICH HAS STALLED NEARBY. STRENGTHENING OF
   THE LLJ MAY RESULT IN PERSISTENCE OF A FEW STRONGER TSTMS PAST WATCH
   EXPIRATION TIME OF 03Z...BUT THE LOSS OF DIURNAL HEATING AND
   INCREASE IN CINH ARE SUPPORTING A GENERAL DOWNWARD TREND IN TSTM
   COVERAGE/INTENSITY. HOWEVER...CONVECTIVE TRENDS WILL CONTINUE TO BE
   MONITORED THROUGH 03Z...FOR THE POSSIBILITY OF A LOCAL EXTENSION IN
   TIME...OR A NEW WW IF A MORE WIDESPREAD THREAT BECOMES APPARENT.

   ..ROGERS.. 05/24/2016


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

   LAT...LON   36809861 34159938 32810030 32770090 33130158 35360151
               36530061 36920013 37129940 37109889 36809861 

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