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Mesoscale Discussion 524
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MD 524 graphic
   
   MESOSCALE DISCUSSION 0524
   NWS STORM PREDICTION CENTER NORMAN OK
   0304 PM CDT MON MAR 31 2008
   
   AREAS AFFECTED...PARTS OF ERN OK INTO WRN/NRN AR AND SRN MO
   
   CONCERNING...TORNADO WATCH 146...
   
   VALID 312004Z - 312030Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 146 CONTINUES.
   
   NEW TORNADO WATCH WILL BE ISSUED SOON FOR MUCH OF ERN OK INTO
   WRN/NRN AR AND SRN MO.
   
   AT 20Z...REGIONAL RADARS INDICATED A BROKEN LINE OF SEVERE TSTMS
   EXTENDING FROM CENTRAL MO SWWD INTO FAR NWRN AR AND NERN TO SRN OK. 
   AIR MASS ALONG AND EAST OF THIS ACTIVITY HAS BECOME VERY UNSTABLE
   OVER SRN OK WITH MODERATE INSTABILITY EXTENDING INTO SRN/CENTRAL MO.
    GIVEN THE INSTABILITY COMBINED WITH VERY STRONG DEEP LAYER SHEAR
   AROUND 50 KT...EMBEDDED BOWING STRUCTURES AND SUPERCELLS WILL REMAIN
   LIKELY AS THE LINE OF ACTIVITY DEVELOPS EWD LATE THIS AFTERNOON INTO
   THE EVENING.  STRONG LOW LEVEL SHEAR ALONG AXIS OF SWLY LLJ WHICH
   EXTENDED FROM CENTRAL TX TO SRN MO WILL CONTINUE TO FAVOR ROTATING
   UPDRAFTS WITH AN ATTENDANT THREAT FOR TORNADOES.  STEEP MID LEVEL
   LAPSE RATES AND DEGREE OF INSTABILITY WILL ALSO SUPPORT LARGE HAIL.
   
   ..PETERS.. 03/31/2008
   
   
   ATTN...WFO...PAH...LSX...LZK...SGF...SHV...TSA...OUN...
   
   38309229 38249160 37209106 36289175 35349269 34699373
   34499487 34599592 34369720 35149625 36559420 37059377 
   
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