MESOSCALE DISCUSSION 1560
   NWS STORM PREDICTION CENTER NORMAN OK
   0245 PM CDT SUN JUL 10 2011
   
   AREAS AFFECTED...EAST CENTRAL/SERN IA...NRN IL
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 101945Z - 102145Z
   
   THUNDERSTORMS MAY BEGIN TO INCREASE OVER EAST CENTRAL/SERN IA IN THE
   WAKE OF THE MCV MOVING EWD ACROSS SWRN WI.  STRONG INSTABILITY AND
   VERTICAL SHEAR WOULD PROMOTE DEVELOPMENT OF SEVERE STORMS AND THE
   AREA IS BEING MONITORED FOR A POSSIBLE WATCH.
   
   AIR MASS CONTINUES TO WARM/DESTABILIZE OVER SERN IA INTO NRN IL
   WHERE SURFACE TEMPERATURES ARE IN THE UPPER 80S-LOWER 90S WITH DEW
   POINTS IN THE LOW-MID 70S. THIS IS CONTRIBUTING TO MLCAPE OF
   1500-2000 J/KG OVER NRN IL TO 2500-4000 J/KG OVER SRN IA...AND
   OBJECTIVE MESOSCALE ANALYSES ARE INDICATING THE CAP IS WEAKENING
   OVER THIS AREA. A CONVECTIVE BOUNDARY IS LOCATED FROM NWRN IL ACROSS
   SRN IA AND THIS MAY PROVIDE A SUBTLE FOCUS FOR NEW STORM INITIATION.
    VISIBLE IMAGERY IS SHOWING CUMULUS STREETS FEEDING NWD INTO THE
   BOUNDARY REGION WHERE GENERALLY WEAK /POSSIBLY ELEVATED/ CONVECTIVE
   CLOUDS ARE LOCATED...INCLUDING NEW STORMS THAT HAVE FORMED RECENTLY
   OVER JONES CNTY IA. CONVECTIVE TRENDS WILL BE MONITORED OVER THIS
   REGION AND IF STORMS SHOW SIGNS OF ADDITIONAL DEVELOPMENT AND
   INTENSIFICATION...A WATCH MAY BE REQUIRED.
   
   ..WEISS.. 07/10/2011
   
   
   ATTN...WFO...LOT...ILX...DVN...DMX...
   
   LAT...LON   41219237 41779154 42209104 42488964 42458823 42048773
               40858760 40188766 39888898 40279101 40649207 41219237