MESOSCALE DISCUSSION 0620
   NWS STORM PREDICTION CENTER NORMAN OK
   0329 PM CDT SUN MAY 09 2004
   
   AREAS AFFECTED...SE AND E MN THROUGH  W CNTRL WI
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 092029Z - 092200Z
   
   STORMS ARE EXPECTED TO DEVELOP SEWD THROUGH ERN MN AND W CNTRL WI
   INTO THE EVENING. LARGE HAIL AND DAMAGING WIND WILL BE LIKELY.
   HOWEVER...AN ISOLATED TORNADO OR TWO WILL ALSO BE POSSIBLE. AN
   ADDITIONAL WW WILL BE ISSUED SOON FOR SE MN THROUGH W CNTRL WI.
   
   THIS AFTERNOON THE ATMOSPHERE CONTINUES TO DESTABILIZE ALONG AND S
   OF A WARM FRONT/OUTFLOW BOUNDARY FROM WRN WI INTO SE MN. SUPERCELL
   STORM OVER S CNTRL MN IS EXPECTED TO CONTINUE ESEWD SUPPORTED BY
   LIFT AND MOIST UNSTABLE SWLY INFLOW ALONG AND N OF THE BOUNDARY.
   SHORT TERM TRENDS SUGGEST THIS STORM MAY BE EVOLVING INTO A BOW ECHO
   AND GIVEN 25F-30F TEMPERATURE-DEWPOINT SPREADS DOWNSTREAM FROM THIS
   STORM..THREAT FOR DAMAGING WIND MAY INCREASE. OTHER STORMS MAY ALSO
   DEVELOP IN VICINITY OF THE BOUNDARY... ESPECIALLY TOWARD EARLY
   EVENING AS THE SWLY LOW LEVEL JET STRENGTHENS.
   
   ..DIAL.. 05/09/2004
   
   
   ATTN...WFO...GRB...ARX...MPX...
   
   44459005 44189205 44369423 45539291 45379173 45119005