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Mesoscale Discussion 569
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   MESOSCALE DISCUSSION 0569
   NWS STORM PREDICTION CENTER NORMAN OK
   0506 PM CDT SAT MAY 09 2015

   AREAS AFFECTED...SRN/CNTRL AR

   CONCERNING...TORNADO WATCH 151...

   VALID 092206Z - 092300Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 151 CONTINUES.

   SUMMARY...AN ISOLATED RISK FOR PREDOMINATELY DAMAGING WINDS AND
   PERHAPS A BRIEF TORNADO MAY DEVELOP E/N FROM SWRN AR. AN AREAL
   EXTENSION OF WW 151 HAS BEEN COORDINATED WITH WFO LZK.

   DISCUSSION...LEADING EDGE OF CONVECTIVE CLUSTER OVER SWRN AR WILL
   EVOLVE EWD WITHIN A RATHER MOIST AND MODERATELY UNSTABLE AIR MASS
   PRESENT OVER THE SRN HALF OF AR WITH NEAR 80/70 DEG F SURFACE T/TD.
   DEEP SHEAR DOES WEAKEN WITH ERN EXTENT WITH MAINLY UNIDIRECTIONAL
   WIND PROFILES. BUT LZK VWP DATA SAMPLED 0-6 KM VALUES AROUND 35
   KT...SUFFICIENT FOR UPDRAFT ORGANIZATION AND THE PREDOMINANT RISK OF
   LOCALIZED DAMAGING WINDS.

   ..GRAMS.. 05/09/2015


   ATTN...WFO...JAN...LZK...SHV...

   LAT...LON   32979302 32979459 33379448 33979336 34709326 34999231
               34879133 34649115 33679161 33119223 32979302 

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Page last modified: May 09, 2015
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