MESOSCALE DISCUSSION 0963
   NWS STORM PREDICTION CENTER NORMAN OK
   0535 PM CDT SAT JUN 06 2009
   
   AREAS AFFECTED...WRN AND CNTRL NEB
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 062235Z - 070000Z
   
   A THREAT FOR LARGE HAIL AND ISOLATED WIND DAMAGE WILL BE LIKELY AS
   SUPERCELLS MOVE ESEWD ACROSS WCNTRL NEB LATE THIS AFTERNOON INTO
   EARLY THIS EVENING. A WW WILL LIKELY BECOME NECESSARY ACROSS THE
   REGION.
   
   LATEST SFC ANALYSIS SHOWS A COLD FRONT EXTENDING WWD ACROSS SRN NEB.
   THE STORMS IN CHERRY COUNTY NEB ARE LOCATED 70-80 STATUTE MILES
   NORTH OF THE BOUNDARY. THE AIRMASS ACCORDING TO THE RUC IS
   MODERATELY UNSTABLE WITH MLCAPE VALUES OF 1000-1500 J/KG. IN
   ADDITION...REGIONAL PROFILERS SUGGEST 0-6 KM SHEAR VALUES ARE AROUND
   60 KT. THIS ENVIRONMENT SHOULD SUPPORT SUPERCELLS WHICH SHOULD
   PERSIST ESEWD INTO CNTRL NEB EARLY THIS EVENING. STEEP MID-LEVEL
   LAPSE RATES EVIDENT ON FORECAST SOUNDINGS SHOULD BE FAVORABLE FOR
   LARGE HAIL. ISOLATED WIND DAMAGE MAY ALSO OCCUR. ATTM...THE
   CONVECTION APPEARS ELEVATED. AS THE CAP WEAKENS EARLY THIS
   EVENING...SFC-BASED DEVELOPMENT COULD OCCUR RAISING THE POTENTIAL
   FOR A TORNADO THREAT ESPECIALLY AS LOW-LEVEL FLOW INCREASES.
   
   ..BROYLES.. 06/06/2009
   
   
   ATTN...WFO...OAX...GID...LBF...BOU...
   
   LAT...LON   41830186 42350131 42420029 41819843 41239797 40699848
               40389932 40400084 40470177 40860214 41830186