MESOSCALE DISCUSSION 1224
   NWS STORM PREDICTION CENTER NORMAN OK
   1030 PM CDT THU JUN 18 2009
   
   AREAS AFFECTED...CENTRAL AND SRN MN
   
   CONCERNING...TORNADO WATCH 467...
   
   VALID 190330Z - 190430Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 467 CONTINUES.
   
   ISOLATED CELLS CONTINUE NEAR -- AND JUST WEST OF -- WW 467.  WITH
   THREAT LIKELY TO PERSIST BEYOND THE SCHEDULED 19/04Z
   EXPIRATION...NEW WW WILL LIKELY BE REQUIRED.
   
   MOIST/UNSTABLE AIRMASS REMAINS ACROSS CENTRAL AND SRN MN...S OF THE
   SURFACE WARM FRONT AND E OF THE ONGOING/BROKEN BAND OF CONVECTION
   AND ASSOCIATED OUTFLOW -- EXTENDING FROM W OF DLH SWWD INTO SWRN MN
   ATTM.  AIRMASS SHOULD SUPPORT A CONTINUATION OF CONVECTION...WHICH
   WILL EVENTUALLY SPREAD EWD TOWARD/INTO WI -- AND ONGOING WATCHES
   ACROSS THAT REGION.
   
   WITH SHEAR STILL FAVORABLE FOR SUPERCELLS ACROSS THIS AREA...THREATS
   FOR LARGE HAIL AND LOCALLY-DAMAGING WINDS SHOULD CONTINUE LOCALLY
   FOR AT LEAST A FEW MORE HOURS -- ALONG WITH THE POTENTIAL FOR AN
   ISOLATED TORNADO.
   
   ..GOSS.. 06/19/2009
   
   
   ATTN...WFO...DLH...ARX...MPX...DMX...FSD...
   
   LAT...LON   45189565 46089399 46079299 43529279 43399535 45189565