MESOSCALE DISCUSSION 0975
   NWS STORM PREDICTION CENTER NORMAN OK
   0330 PM CDT SUN JUN 07 2009
   
   AREAS AFFECTED...NERN/E-CNTRL CO...NWRN KS...SWRN NEB
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 341...
   
   VALID 072030Z - 072130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 341
   CONTINUES.
   
   SEVERE THREAT IS EXPECTED TO PROGRESS EWD IN CONCERT WITH SUPERCELLS
   AND ORGANIZED MULTICELLS EVOLVING ACROSS NERN CO AND LIKELY
   EVENTUALLY INTO NWRN KS/SWRN NEB. AN ADDITIONAL WW MAY BE NEEDED
   LATER THIS AFTERNOON DOWNSTREAM OF WW 341.
   
   20Z SUBJECTIVE SURFACE ANALYSIS PLACED A QUASI-STATIONARY FRONT
   AROUND 20 SE DEN E/SEWD TO 30 S ITR TO DDC. A FEW CONVECTIVE
   CLUSTERS WITH EMBEDDED SUPERCELLS HAVE EVOLVED JUST EAST OF THE I-25
   CORRIDOR FROM WELD COUNTY TO THE ERN DEN METRO AREA. MODIFIED 18Z
   DNR RAOB SAMPLED A FAVORABLE KINEMATIC/THERMODYNAMIC ENVIRONMENT FOR
   SUPERCELL STRUCTURES MAINLY PRODUCING LARGE HAIL. ALTHOUGH LOW-LEVEL
   UPSLOPE FLOW SHOULD REMAIN RELATIVELY MODEST...THREAT FOR BRIEF/WEAK
   TORNADOES WILL CONTINUE. STRONG HEATING DOWNSTREAM OF TSTM ACTIVITY
   TO THE EDGE OF SLOWLY ERODING STRATUS DECK OVER FAR NERN CO/NWRN KS
   SHOULD PROMOTE A MAINTENANCE OF ORGANIZED SEVERE POTENTIAL INTO
   E-CNTRL CO/NWRN KS THROUGH 00Z AS ATTENDANT SHORT WAVE TROUGH EJECTS
   E/NEWD.
   
   ..GRAMS.. 06/07/2009
   
   
   ATTN...WFO...LBF...GLD...BOU...
   
   LAT...LON   39410535 40590485 40900323 40860186 40660148 40340131
               39130102 38570139 38550187 38940249 39350319 39300408
               39150481 39410535