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Mesoscale Discussion 973
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   MESOSCALE DISCUSSION 0973
   NWS STORM PREDICTION CENTER NORMAN OK
   0910 PM CDT TUE MAY 29 2012
   
   AREAS AFFECTED...CNTRL/S-CNTRL OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 317...319...
   
   VALID 300210Z - 300345Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   317...319...CONTINUES.
   
   SUMMARY...WIND THREAT EXPECTED TO INCREASE IN ADDITION TO THE THREAT
   OF VERY LARGE HAIL ACROSS CNTRL/S-CNTRL OK.
   
   DISCUSSION...COMPLEX INTERACTION BETWEEN SUPERCELLS APPEARS TO BE
   EVOLVING INTO A CONVECTIVE LINE/MCS ACROSS CNTRL OK. ONE SUPERCELL
   ACCELERATED ACROSS KINGFISHER AND CANADIAN COUNTIES WHILE
   LEFT-MOVING AND RIGHT-MOVING SUPERCELLS COLLIDED OVER OKLAHOMA
   COUNTY. CURRENT THINKING IS THAT THE COLLISION WILL RESULT IN
   UPSCALE GROWTH INTO A MESO-LOW WHILE THE ACCELERATING SUPERCELL
   FORMS THE APEX OF A BOWING SEGMENT. THIS LINE SHOULD THEN BEGIN TO
   ACCELERATE SWD/SEWD ACROSS CNTRL OK AND INTO S-CNTRL OK.
   THEREFORE...CONVECTIVE WIND THREAT SHOULD BEGIN TO INCREASE WITH A
   CONTINUING THREAT FOR VERY LARGE HAIL.
   
   ..MOSIER/HART.. 05/30/2012
   
   
   ATTN...WFO...TSA...OUN...
   
   LAT...LON   35369842 35929814 35729754 35439626 35309556 34869532
               34279569 34119619 34149698 34339767 35369842 
   
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