MESOSCALE DISCUSSION 1905
   NWS STORM PREDICTION CENTER NORMAN OK
   0908 PM CDT THU JUL 24 2008
   
   AREAS AFFECTED...SD/NEB
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 746...
   
   VALID 250208Z - 250315Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 746
   CONTINUES.
   
   SEVERE THREAT CONTINUES ACROSS WW AND ADJACENT AREAS...WITH NEW WW
   LIKELY TO BE ISSUED PRIOR TO 25/03Z -- THE SCHEDULED EXPIRATION TIME
   OF WW 746.
   
   THUNDERSTORMS CONTINUE TO EXPAND/MOVE GENERALLY ESEWD ACROSS PARTS
   OF SD AND NEB...WITH A LARGE CLUSTER OF CONVECTION DEVELOPING ATTM
   ACROSS SWRN SD AND THE NEB PANHANDLE JUST AHEAD OF A WEAK VORT MAX
   PER LATEST WV IMAGERY.  AIRMASS AHEAD OF THIS CLUSTER -- ACROSS
   CENTRAL PARTS OF SD AND NEB -- REMAINS QUITE MOIST AND MODERATELY
   UNSTABLE...WITH 1000 TO 2000 J/KG MIXED-LAYER CAPE INDICATED.
   
   AS THE SLY LOW-LEVEL JET CONTINUES TO STRENGTHEN OVER THE CENTRAL
   PLAINS THIS EVENING...EXPECT STORMS TO CONTINUE/INCREASE AND SPREAD
   ESEWD WITH TIME.  THOUGH STRONGEST MID-LEVEL FLOW REMAINS FURTHER N
   -- ACROSS NRN SD AND INTO ND...AMPLE SHEAR AND OBSERVED MESOSCALE
   ORGANIZATION WITH THE ONGOING CLUSTER MOVING OUT OF THE HIGH PLAINS
   SUGGESTS THAT A THREAT FOR DAMAGING WINDS AND HAIL WILL CONTINUE FOR
   THE NEXT SEVERAL HOURS.
   
   ..GOSS.. 07/25/2008
   
   
   ATTN...WFO...FSD...OAX...ABR...GID...LBF...UNR...CYS...BYZ...
   
   44690454 45030408 44770091 44429895 41349692 40049732
   40429962 41160276 42870416