MESOSCALE DISCUSSION 1158
   NWS STORM PREDICTION CENTER NORMAN OK
   0346 PM CDT SAT JUN 04 2005
   
   AREAS AFFECTED...SW INTO CNTRL NEB
   
   CONCERNING...TORNADO WATCH 390...
   
   VALID 042046Z - 042245Z
   
   CONTINUE WW.
   
   VIGOROUS CONVECTIVE DEVELOPMENT CONTINUES TO THE NORTHWEST OF NORTH
   PLATTE...SUPPORTED BY STRONG FORCING NORTHEAST OF CYCLONIC VORTICITY
   CENTER.  UPPER FEATURE MAY REDEVELOP NORTHEASTWARD INTO THE VICINITY
   OF NORTH PLATTE WITHIN NEXT HOUR OR TWO...WITH STRONGER UPWARD
   VERTICAL MOTION FIELD SUPPORTING CONVECTIVE DEVELOPMENT INTO AREAS
   NORTHEAST OF NORTH PLATTE.  MIXED LAYER CAPE IS NOW IN EXCESS OF 500
   J/KG ACROSS THIS AREA...AND INCREASES EASTWARD TOWARD BROKEN BOW...
   WHERE SURFACE DEW POINTS ARE NOW AROUND 60F.  GIVEN INCREASINGLY
   FAVORABLE THERMODYNAMIC ENVIRONMENT...POTENTIAL FOR LARGE HAIL/
   ISOLATED TORNADOES SHOULD INCREASE LATE THIS AFTERNOON.
   
   ..KERR.. 06/04/2005
   
   
   ATTN...WFO...GID...LBF...
   
   41550114 41720076 41720007 41179950 40869980 40680048
   40880080