MESOSCALE DISCUSSION 1202
   NWS STORM PREDICTION CENTER NORMAN OK
   0211 PM CDT MON JUN 24 2013

   AREAS AFFECTED...NRN MO/SERN IA/SRN WI/NRN IL/NWRN INDIANA

   CONCERNING...SEVERE THUNDERSTORM WATCH 354...

   VALID 241911Z - 242115Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 354
   CONTINUES.

   SUMMARY...ISOLATED SEVERE THREAT CONTINUES ACROSS WRN PORTIONS OF WW
   354.  AS THREAT SPREADS GRADUALLY EWD...NEW WW WILL LIKELY BE NEEDED
   ACROSS THE REMAINDER OF NRN IL AND POSSIBLY INTO SRN WI/NWRN
   INDIANA.

   DISCUSSION...LATEST RADAR LOOP SHOWS A BAND OF STRONG/LOCALLY SEVERE
   STORMS CROSSING SERN IA AND ADJACENT NERN MO ATTM...ALONG AN
   INSTABILITY GRADIENT ON THE NRN FRINGE OF A MODERATE CAPE
   ENVIRONMENT ACROSS MO/SRN AND WRN IL.  

   WITH AMPLE SHEAR INDICATED OVER THE AREA AND A MESOLOW EVIDENT --
   NOW CROSSING CENTRAL IA...EXPECT STORMS TO REMAIN AT LEAST LOOSELY
   ORGANIZED IN AN ARC-SHAPED BAND AS THEY SPREAD EWD AT AROUND 40 KT
   TOWARD THE MS VALLEY.  WHILE THREATS FOR LOCALLY DAMAGING WINDS AND
   HAIL CONTINUE ACROSS THE WW AREA...EXPANSION OF THIS POTENTIAL
   EWD/NEWD WITH TIME WILL LIKELY REQUIRE NEW WW ISSUANCE IN THE NEXT
   HOUR OR TWO.

   ..GOSS.. 06/24/2013


   ATTN...WFO...IWX...LOT...ILX...MKX...LSX...DVN...ARX...DMX...
   EAX...

   LAT...LON   40619408 41699266 42249152 42858992 43078788 42478666
               40788717 39468880 39709383 40619408