MESOSCALE DISCUSSION 1899
   NWS STORM PREDICTION CENTER NORMAN OK
   1025 PM CDT SUN AUG 26 2007
   
   AREAS AFFECTED...ERN ND THROUGH N CNTRL MN
   
   CONCERNING...TORNADO WATCH 653...
   
   VALID 270325Z - 270430Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 653 CONTINUES.
   
   TORNADO WATCH 653 MAY NEED TO BE REPLACED BY A SEVERE THUNDERSTORM
   WATCH PRIOR TO ITS EXPIRATION TIME OF 04Z. 
   
   SCATTERED STORMS CONTINUE FROM EXTREME NWRN MN SWWD THROUGH SERN ND.
   SOME OF THIS ACTIVITY REMAINS SEVERE. OVERALL TREND HAS BEEN FOR
   MOST STORMS TO BEGIN TO LOSE SOME OF THEIR SUPERCELL CHARACTERISTICS
   AND WEAKEN...ESPECIALLY OVER SERN ND. STRONGEST SUPERCELL STORM
   REMAINS OVER SRN GRAND FORKS COUNTY NEAR A COLD FRONT/OUTFLOW
   BOUNDARY INTERSECTION. THIS STORM MAY STILL BE CAPABLE OF PRODUCING
   VERY LARGE HAIL AND ISOLATED TORNADOES AS IT MOVES SWD INTO STEELE
   COUNTY. THE ATMOSPHERE REMAINS VERY UNSTABLE...BUT INCREASING
   CONVECTIVE INHIBITION TO SURFACE BASED PARCELS ASSOCIATED WITH
   NOCTURNAL COOLING SUGGEST MOST STORMS MAY BEGIN TO STRUGGLE.
   HOWEVER...POTENTIAL EXISTS FOR ADDITIONAL STORMS TO DEVELOP ALONG
   COLD FRONT AS IT ADVANCES SEWD. PRIMARY THREAT SHOULD TRANSITION TO
   DAMAGING WIND AND HAIL.
   
   ..DIAL.. 08/27/2007
   
   
   ATTN...WFO...DLH...FGF...BIS...
   
   46349972 47409777 48599557 48339298 47509400 46119801