MESOSCALE DISCUSSION 1137
   NWS STORM PREDICTION CENTER NORMAN OK
   0336 PM CDT WED JUN 08 2011
   
   AREAS AFFECTED...SRN WI...SERN IA...NWRN MO...NERN KS
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 082036Z - 082200Z
   
   CONSIDERABLE STRONG/SEVERE STORM DEVELOPMENT IS EXPECTED LATE THIS
   AFTERNOON.  ONE OR MORE WATCHES PROBABLY WILL BE NEEDED.
   
   LOW-LEVEL CONVERGENCE ALONG THE SLOW SOUTHEASTWARD ADVANCING SURFACE
   FRONT IS STILL GENERALLY WEAK...BUT STRONG HEATING HAS CONTRIBUTED
   TO A NARROW PRE-FRONTAL CORRIDOR OF MODERATE TO STRONG
   DESTABILIZATION.  IN THE PRESENCE OF STEEP LAPSE RATES...MIXED LAYER
   CAPE IS NOW ON THE ORDER OF 2000-3000+ J/KG.  WHILE OBJECTIVE
   ANALYSIS SUGGESTS INHIBITION REMAINS...IT ALSO INDICATES THAT THE
   VERY WARM ELEVATED MIXED LAYER HAS BEEN STEADILY ERODING THE PAST
   FEW HOURS.  CONSOLIDATION AND DEEPENING OF PERSISTENT CONVECTIVE
   DEVELOPMENT APPEARS TO BE SLOWLY UNDERWAY IN SCATTERED POCKETS AHEAD
   OF THE FRONT...WITH RAPID FURTHER INTENSIFICATION SEEMINGLY POSSIBLE
   BY 22-23Z.  ONCE THIS OCCURS...THERMODYNAMIC PROFILES SHOULD BE
   SUPPORTIVE OF LARGE HAIL AND LOCALLY DAMAGING WIND GUSTS.  WEST
   SOUTHWESTERLY DEEP LAYER FLOW AND SHEAR ON THE ORDER OF 30+ KT MAY
   CONTRIBUTE TO CONVECTIVE ORGANIZATION ACROSS NORTHEAST IOWA INTO
   SOUTHERN WISCONSIN...BUT THIS DROPS OFF SUBSTANTIALLY WITH SOUTHWARD
   EXTENT TOWARD THE MID/LOWER MISSOURI VALLEY.
   
   ..KERR.. 06/08/2011
   
   
   ATTN...WFO...LOT...MKX...DVN...ARX...DMX...EAX...OAX...TOP...
   
   LAT...LON   40549570 41599419 42169324 42559231 43349143 43758973
               43528813 42588840 42248960 40909097 40419212 40019407
               39729576 40549570