MESOSCALE DISCUSSION 1107
   NWS STORM PREDICTION CENTER NORMAN OK
   0341 PM CDT SAT JUN 21 2014

   AREAS AFFECTED...PORTIONS OF NRN/WRN IL...NERN MO...NWRN IND

   CONCERNING...SEVERE THUNDERSTORM WATCH 340...

   VALID 212041Z - 212145Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 340
   CONTINUES.

   SUMMARY...THE SEVERE THREAT CONTINUES ACROSS THE WW AREA.

   DISCUSSION...CLUSTERS OF SVR TSTMS WERE IN PROGRESS AT 2030Z ACROSS
   MAINLY THE SRN/ERN PORTIONS OF WW 340 WITH REPORTS OF UP TO
   GOLFBALL-SIZE HAIL AND ISOLATED SVR WIND GUSTS.  THE OVERALL
   ENVIRONMENT REMAINS SUPPORTIVE OF A CONTINUED SVR THREAT WITH
   MOD-STRONG SFC-BASED INSTABILITY...WITH STRONGER EFFECTIVE SHEAR
   /30-35 KTS/ ACROSS THE NRN HALF OF WW AREA IN ASSOCIATION WITH
   REMNANT MCV OVER SRN WI. A SFC BOUNDARY EXTENDS SWD FROM A WEAK SFC
   LOW OVER CENTRAL WI INTO NWRN IL...AND ADDITIONAL SVR TSTM
   DEVELOPMENT IS POSSIBLE OVER WRN PORTIONS OF WW AREA THROUGH 02Z.
   WHERE TSTMS MERGE INTO ONE OR MORE CLUSTERS...A MORE CONCENTRATED
   WIND DAMAGE THREAT MAY EXIST.

   ..BUNTING.. 06/21/2014


   ATTN...WFO...LOT...ILX...MKX...LSX...DVN...

   LAT...LON   42528957 42458791 41548708 41108702 40548721 40498775
               39608971 39289110 39419201 39799228 40419140 42528957