MESOSCALE DISCUSSION 1558
   NWS STORM PREDICTION CENTER NORMAN OK
   1032 AM CDT SUN JUL 10 2011
   
   AREAS AFFECTED...SRN ND...NRN SD
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 101532Z - 101730Z
   
   ELEVATED THUNDERSTORMS ARE DEVELOPING RAPIDLY OVER SWRN ND AND
   ADDITIONAL STORMS ARE EXPECTED TO CONTINUE DEVELOPING AND INTENSIFY
   NEXT SEVERAL HOURS.  A WATCH WILL LIKELY BE NEEDED.
   
   STORMS ARE CURRENTLY DEVELOPING WITH A REGION OF STEEP LAPSE RATES
   WITHIN RIGHT ENTRANCE REGION OF A STRONG JET STREAK MOVING ACROSS ND
   AND NRN MN.  LOW LEVEL MOISTURE HAS BEEN SPREADING NWD ACROSS SD
   WHERE SURFACE DEW POINTS ARE IN THE LOW 70S...AND CLEAR SKIES OVER
   ERN ND/NERN SD WILL PROMOTE CONTINUED HEATING AND DESTABILIZATION. 
   LATEST BIS VAD PROFILE SHOWS WINDS VEERING AND INCREASING WITH
   HEIGHT AND SUFFICIENT DEEP LAYER SHEAR TO ENHANCE NEAR-TERM THREAT
   FOR ELEVATED SUPERCELLS.  ACTIVITY IS EXPECTED TO DEVELOP EWD ALONG
   MUCAPE GRADIENT ACROSS SRN ND/NRN SD...WITH POTENTIAL FOR STORMS TO
   BECOME SURFACE-BASED BY EARLY/MID AFTERNOON AS PBL CONTINUES TO
   WARM. A WATCH WILL LIKELY BE NEEDED WITHIN THE NEXT HOUR IF CURRENT
   TRENDS CONTINUE.
   
   ..WEISS.. 07/10/2011
   
   
   ATTN...WFO...FGF...ABR...BIS...UNR...
   
   LAT...LON   47130171 47350021 47189807 46659687 45759660 45189689
               45079873 45340125 45740214 46450231 47130171