MESOSCALE DISCUSSION 1572
   NWS STORM PREDICTION CENTER NORMAN OK
   0141 PM CDT THU JUN 26 2008
   
   AREAS AFFECTED...E MT AND CNTRL/W ND
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 261841Z - 262015Z
   
   MID-LVL IMPULSE HAS MOVED INTO THE NRN ROCKIES EARLY THIS AFTN WITH
   LARGE SCALE ASCENT BEGINNING TO SPREAD EWD ONTO THE NRN HIGH PLAINS.
    THIS WAS RESULTING IN AN INCREASE IN CONVECTION/TSTMS OVER FAR ERN
   MT AND WRN ND.  DOWNSTREAM BOUNDARY LAYER IS MOISTENING AND GIVEN
   DECREASE IN MORNING CLOUDS...INSOLATION IS RESULTING IN INCREASING
   DESTABILIZATION.  
   
   12Z RAOB FROM GGW/RAP SUGGESTED THAT THE STEEPEST MID-TROPOSPHERIC
   LAPSE RATES WERE RELEGATED TO THE HIGHER PLAINS WHERE THE CURRENT
   STG-SVR TSTMS ARE THRIVING.  18Z BIS/ABR SOUNDINGS CONTINUE THE
   NOTION OF THE TIGHT E-W GRADIENT IN INSTABILITY SEEN EARLIER IN THE
   MORNING.  THUS...IT IS LIKELY THAT THE SVR THREAT WILL PEAK MID-LATE
   AFTN OVER WRN/CNTRL ND.  
   
   WK LOW-LVL FLOW EXISTS ACROSS THE REGION...BUT SUFFICIENT
   DIRECTIONAL SHEAR IS IN PLACE...PARTICULARLY ABOVE H7...TO BOOST
   0-6KM SHEAR TO ROUGHLY 40 KTS.  AS A RESULT...A COUPLE OF SUPERCELLS
   WILL BE LIKELY WITH LARGE HAIL.
   
   ..RACY.. 06/26/2008
   
   
   ATTN...WFO...BIS...BYZ...GGW...
   
   46370503 47880495 48780314 48730082 47560008 46650008
   46300129 46080317