MESOSCALE DISCUSSION 1897
   NWS STORM PREDICTION CENTER NORMAN OK
   0348 PM CDT SUN AUG 26 2007
   
   AREAS AFFECTED...PARTS OF CENTRAL AND NRN ND
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 262048Z - 262215Z
   
   STORMS MAY DEVELOP ACROSS PARTS OF CENTRAL ND IN THE NEXT 1-2
   HOURS...WHICH WOULD LIKELY REQUIRE WW ISSUANCE.
   
   LATEST VISIBLE IMAGERY SHOWS CU FIELD STARTING TO DEVELOP JUST W AND
   NW OF BIS /BISMARK ND/...JUST AHEAD OF EWD-MOVING COLD FRONT WHERE
   COMBINATION OF DAYTIME HEATING AND MOISTENING BOUNDARY LAYER HAS
   RESULTED IN MODERATE INSTABILITY /UP TO 3500 J/KG MIXED-LAYER CAPE/.
   
   WHILE WEAKENING CAP CONTINUES TO SUPPRESS DEEP CONVECTION...STORMS
   WOULD LIKELY BECOME RAPIDLY SEVERE GIVEN DEGREE OF INSTABILITY AND
   SHEAR SUPPORTIVE OF SUPERCELLS -- PER MODEL FORECASTS AND LATEST BIS
   VWP.  MAIN THREATS WOULD LIKELY BE LARGE HAIL AND LOCALLY-DAMAGING
   WINDS...THOUGH AN ISOLATED TORNADO OR TWO CANNOT BE RULED OUT GIVEN
   DEGREE OF LOW-LEVEL SHEAR.
   
   ..GOSS.. 08/26/2007
   
   
   ATTN...WFO...FGF...ABR...BIS...
   
   49019756 47589788 45920091 46110213 47070147 48090066
   48990061