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Mesoscale Discussion 1860
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   MESOSCALE DISCUSSION 1860
   NWS STORM PREDICTION CENTER NORMAN OK
   0959 PM CDT SAT SEP 01 2012
   
   AREAS AFFECTED...SRN AR...THROUGH NRN MO AND WRN TN
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 606...607...
   
   VALID 020259Z - 020430Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   606...607...CONTINUES.
   
   SUMMARY...THREAT FOR MAINLY ISOLATED STRONG TO DAMAGING GUSTS WILL
   PERSIST NEXT COUPLE HOURS FROM SRN AR INTO NRN MS AND SERN PORTIONS
   OF WRN TN. HOWEVER...OVERALL THREAT IS EXPECTED TO CONTINUE A
   GRADUAL DECREASE.
   
   DISCUSSION...LINE OF STORMS WITH A FEW BOWING SEGMENTS PERSISTS FROM
   WRN TN SWWD THROUGH NRN MS AND SRN AR. STORMS IN SRN AR ARE
   DEVELOPING NORTH OF CONVECTIVE OUTFLOW BOUNDARY WHERE A MID LEVEL
   JET ROTATING THROUGH BASE OF UPPER TROUGH HAS CONTRIBUTED TO
   SUFFICIENT SHEAR FOR SOME SUPERCELL STRUCTURES TO PERSIST.
   OTHERWISE...STORMS FROM NRN MS INTO WRN TN WILL CONTINUE TO FORWARD
   PROPAGATE ALONG CONSOLIDATED OUTFLOW BOUNDARY AND POSE A THREAT FOR
   ISOLATED WIND DAMAGE NEXT COUPLE HOURS. STORMS ARE EXPECTED TO
   CONTINUE AN OVERALL SLOW WEAKENING TREND AS THEY ENCOUNTER AN
   INCREASINGLY MARGINAL THERMODYNAMIC ENVIRONMENT.
   
   ..DIAL.. 09/02/2012
   
   
   ATTN...WFO...OHX...MEG...JAN...LZK...
   
   LAT...LON   34419287 34029123 34808943 36078815 35538801 34348876
               33449135 33559300 34279330 34419287 
   
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Page last modified: September 02, 2012
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