MESOSCALE DISCUSSION 1565
   NWS STORM PREDICTION CENTER NORMAN OK
   0953 PM CDT SUN JUL 10 2011
   
   AREAS AFFECTED...ECNTRL/SERN/SCNTRL MN...WRN WI AND EXTREME NRN IA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 618...
   
   VALID 110253Z - 110400Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 618
   CONTINUES.
   
   STG-SVR TSTMS CONTINUE TO MARCH ESE AT 45 KTS AND HAVE TRANSITIONED
   INTO LARGELY A LINEAR MCS WITH NUMEROUS SVR/DMGG WIND GUSTS REPORTED
   IN CNTRL MN.  LATEST HRRR AND 00Z NAM SUGGEST THAT ACTIVITY WILL
   WEAKEN THROUGH 06Z AND THIS SCENARIO YIELDS SOME UNCERTAINTY ON EWD
   EXTENT OF THE SVR THREAT.  HIGHLY-ORGANIZED NATURE OF THE MCS WOULD
   ARGUE THAT AT LEAST PORTIONS OF WCNTRL WI AND SCNTRL/SERN MN WILL
   EXPERIENCE AN INCREASE IN WIND DMGG POTENTIAL THROUGH 04Z...PSBLY
   EXTENDING INTO EXTREME NRN IA.  AN ADDITIONAL WW IS BEING CONSIDERED
   FOR AT LEAST THE REMAINDER OF SRN MN...EXTREME NERN IA AND
   WCNTRL/SWRN WI.
   
   ..RACY.. 07/11/2011
   
   
   ATTN...WFO...DLH...ARX...MPX...DMX...FSD...
   
   LAT...LON   44109639 45849369 45739248 45129144 44529051 43409043
               43069083 42759342 43219548 44109639