MESOSCALE DISCUSSION 1144
   NWS STORM PREDICTION CENTER NORMAN OK
   0843 PM CDT WED JUN 08 2011
   
   AREAS AFFECTED...SRN AND ERN WI...NRN IL...SRN AND ERN IA...
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 440...441...
   
   VALID 090143Z - 090315Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   440...441...CONTINUES.
   
   A SEVERE THREAT CURRENTLY ONGOING IN THE CENTER OF WW 441 WILL MOVE
   SEWD INTO NRN IL...FAR SW WI AND INTO FAR ERN IA LATE THIS EVENING.
   A WIND DAMAGE THREAT MAY EVENTUALLY AFFECT WRN LOWER MI AND FAR NE
   IL. WW ISSUANCE MAY BECOME NECESSARY ACROSS WRN LOWER MI LATE THIS
   EVENING.
   
   A LINEAR MCS IS ONGOING IN SRN WI SWWD INTO ERN IA LOCATED ALONG AN
   AXIS OF STRONG INSTABILITY WITH MESOANALYSIS SHOWING MLCAPE VALUES
   OF 2000 TO 3000 J/KG. THE STRONG INSTABILITY ALONG WITH MODERATE
   DEEP LAYER SHEAR ASSOCIATED WITH THE RIGHT ENTRANCE REGION OF THE 50
   TO 75 KT MID-LEVEL JET...WILL CONTINUE TO SUPPORT STRONG UPDRAFT
   DEVELOPMENT LATE THIS EVENING. ALTHOUGH THE STRONG INSTABILITY WILL
   BE FAVORABLE FOR LARGE HAIL...THE WIND DAMAGE THREAT MAY MARKEDLY
   INCREASE AS A BOWING-LINE SEGMENT CONTINUES TO ORGANIZE OVER THE
   NEXT FEW HOURS. THE BOW ECHO SHOULD MOVE ACROSS SRN LAKE MICHIGAN
   AND MAY IMPACT WRN LOWER MI LATER THIS EVENING WHERE DESTABILIZATION
   HAS ALLOWED MODERATE INSTABILITY TO REDEVELOP.
   
   ..BROYLES.. 06/09/2011
   
   
   ATTN...WFO...APX...GRR...GRB...LOT...ILX...MKX...DVN...ARX...
   DMX...
   
   LAT...LON   43838536 44268612 44408810 43708962 42889040 42599080
               42189139 41739203 41409317 40709256 40849011 41918710
               42768538 43838536