MESOSCALE DISCUSSION 0506
   NWS STORM PREDICTION CENTER NORMAN OK
   0850 PM CDT SUN MAR 30 2008
   
   AREAS AFFECTED...WRN OK TO SCNTRL KS
   
   CONCERNING...TORNADO WATCH 140...
   
   VALID 310150Z - 310245Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 140 CONTINUES.
   
   ...SEVERE THUNDERSTORM WATCH MAY BE REQUIRED FOR PORTIONS OF SOUTH
   CENTRAL KS...
   
   ROUGHLY FOUR MAIN SUPERCELLS PERSIST ACROSS CNTRL PORTIONS OF
   TORNADO WATCH #140 FROM WASHITA COUNTY TO BLAINE COUNTY OK.  THIS
   ACTIVITY IS ONLY SLOWLY PROPAGATING EWD...WITH NWD DEVELOPMENT/LEFT
   SPLITS CONSIDERABLY QUICKER.  IT APPEARS LOW LEVEL WARM ADVECTION IS
   BEGINNING TO INTENSIFY ACROSS THE SRN PLAINS AS SCATTERED SHOWERS
   ARE NOW DEVELOPING ALONG THE KS/OK BORDER...JUST NE OF SFC WAVE. 
   LATEST RUC GUIDANCE SUGGESTS LLJ WILL INCREASE MARKEDLY OVER THE
   NEXT FEW HOURS WHICH SHOULD MAINTAIN ONGOING ACTIVITY AS IT
   PROPAGATES TOWARDS CNTRL OK.  OF POTENTIALLY EQUAL SIGNIFICANCE WILL
   BE THE NEW DEVELOPMENT THAT SHOULD OCCUR ACROSS SCNTRL KS LATER THIS
   EVENING.  00Z SOUNDINGS FROM OUN AND LMN ARE STRONGLY SUPPORTIVE OF
   SUPERCELL STRUCTURES...BUT WITH DECOUPLING EXPECTED OVER THE NEXT
   FEW HOURS LARGE HAIL MAY BECOME THE PRIMARY SEVERE THREAT.
   
   ..DARROW.. 03/31/2008
   
   
   ATTN...WFO...TSA...ICT...OUN...DDC...
   
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