MESOSCALE DISCUSSION 1867
   NWS STORM PREDICTION CENTER NORMAN OK
   0800 AM CDT THU AUG 24 2006
   
   AREAS AFFECTED...ND
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 739...
   
   VALID 241300Z - 241500Z
   
   VALID PORTION OF SEVERE THUNDERSTORM WATCH 739 CONTINUES UNTIL 17Z
   ACROSS ND...WITH A CONTINUED STRONG WIND GUST/LARGE HAIL THREAT.
   
   IMMEDIATELY DOWNSTREAM OF POTENT SHORTWAVE TROUGH ACROSS EASTERN
   MT/NORTHERN WY...STRONGLY FORCED AREA OF SEVERE STORMS/FEW ELEVATED
   SUPERCELLS CONTINUES TO PROGRESS EAST ACROSS WEST CENTRAL ND THIS
   MORNING...BETWEEN DICKINSON/MINOT ND AS OF 13Z. THESE STORMS HAVE A
   HAD OF HISTORY OF STRONG WIND GUSTS THROUGH THE PREDAWN HOURS...WITH
   A MEASURED 54 KT GUST AT SIDNEY MT...AS WELL AS A 41 KT GUST AT
   WILLISTON ND JUST BEFORE 12Z. OBSERVED 12Z RAOB FROM BISMARK
   SUPPORTS PERSISTENCE OF SEVERE POTENTIAL/ELEVATED SUPERCELLS THROUGH
   THE MORNING...WITH PROSPECTS FOR LARGE HAIL AND STRONG DOWNDRAFTS
   VIA A VERY UNSTABLE/DRY PLUME ABOVE 850 MB...IN SPITE OF A SHALLOW
   TABLE LAYER. THIS ACTIVITY APPEARS LIKELY TO CONTINUE TO SPREAD E/SE
   ACROSS ND AND INTO NORTHEAST SD THROUGH MIDDAY...BECOMING MORE
   SURFACE BASED IN NATURE WITH TIME AS THE BOUNDARY LAYER
   DESTABILIZES.
   
   ..GUYER.. 08/24/2006
   
   
   ATTN...WFO...FGF...BIS...
   
   46670314 47970347 48880242 48819986 48239861 46829842
   46319864 46059986 46080116