MESOSCALE DISCUSSION 1729
   NWS STORM PREDICTION CENTER NORMAN OK
   0334 PM CDT MON JUL 11 2005
   
   AREAS AFFECTED...NE/ECNTRL CO AND SE WY/WRN NEB/FAR NW KS
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 112034Z - 112230Z
   
   TSTMS EXPECTED TO DEVELOP INVOF FRONT RANGE/HIGHER TERRAIN AND
   SPREAD SSEWD REMAINDER OF THE AFTERNOON/EARLY EVENING. A SEVERE
   WATCH WILL LIKELY BE NEEDED IN THE NEXT HOUR OR TWO.
   
   AS FRONTAL BOUNDARY CONTINUES TO PROGRESS SWD ACROSS WRN NEB AND FAR
   SE WY/FAR NE CO...INCREASING UPSLOPE FLOW INTO HIGHER TERRAIN WILL
   SUPPORT EXPANDING TSTM COVERAGE FROM THE SE WY/CO FRONT RANGE INTO
   THE HIGH PLAINS OF ERN CO/WRN NEB REMAINDER OF THE AFTERNOON.
   AMBIENT AIRMASS IS NOW MODERATELY UNSTABLE/WEAKLY CAPPED BASED ON
   RUC SOUNDINGS/LATEST MESOANALYSIS...WITH AS MUCH AS 1500-2000 J/KG
   MLCAPE ACROSS THE HIGH PLAINS. GIVEN MODEST NWLY FLOW PRESENT
   ALOFT...ELY COMPONENT IN THE BOUNDARY LAYER CONTRIBUTING TO DEEP
   LAYER VERTICAL SHEAR OF 30-40 KTS...WITH POTENTIAL FOR SUPERCELL
   STRUCTURES. PRIMARY HAZARD WILL BE LARGE HAIL...WITH POSSIBILITY FOR
   DAMAGING WIND GUSTS AND PERHAPS A TORNADO OR TWO AS WELL. A WATCH
   WILL LIKELY BE REQUIRED IN THE NEXT HOUR OR TWO.
   
   ..GUYER.. 07/11/2005
   
   
   ATTN...WFO...LBF...UNR...GLD...PUB...BOU...CYS...
   
   41150532 41960516 43150484 43640292 41660203 39840184
   39200269 38800336 38840470 39500511