MESOSCALE DISCUSSION 0265
   NWS STORM PREDICTION CENTER NORMAN OK
   0556 PM CST SAT MAR 10 2007
   
   AREAS AFFECTED...TEXAS PANHANDLE
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 102356Z - 110100Z
   
   STORMS EXPECTED TO INCREASE IN COVERAGE ACROSS THE TX PANHANDLE
   THROUGH THE EVENING. A THREAT FOR SEVERE HAIL AND/OR STRONG GUSTS
   ARE POSSIBLE FOR THE NEXT COUPLE OF HOURS. THREAT IS EXPECTED TO BE
   TOO SHORT LIVED AND ISOLATED FOR A WW.
   
   THUNDERSTORMS DEVELOPED DURING THE PAST 2 HOURS BETWEEN LBB AND AMA
   AND ARE EXPECTED TO INCREASE IN COVERAGE AS LIFT STRENGTHENS AHEAD
   OF SHORTWAVE TROUGH MOVING SEWD THROUGH WRN CO. STRONG DIRECTIONAL
   SHEAR IS RESULTING IN EFFECTIVE SHEAR NEAR 50 KT. DESPITE THE
   RELATIVELY DRY BOUNDARY LAYER...DEWPOINTS IN THE UPPER 30S AND LOWER
   40S...STEEP MID LEVEL LAPSE RATES AND MOISTURE ADVECTION ABOVE THE
   BOUNDARY LAYER WERE RESULTING IN MUCAPES AROUND 500 J/KG. THOUGH
   THIS MAY RESULT IN BRIEF MID LEVEL ROTATION AND BRIEF SEVERE
   THREAT...THE STORM INTENSITIES ARE EXPECTED TO WEAKEN AS THE
   BOUNDARY LAYER COOLS...RESULTING IN A DECOUPLING OF THE UPDRAFTS
   FROM THE BOUNDARY LAYER.
   
   ..IMY.. 03/10/2007
   
   
   ATTN...WFO...LUB...AMA...
   
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