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Mesoscale Discussion 1118
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   MESOSCALE DISCUSSION 1118
   NWS STORM PREDICTION CENTER NORMAN OK
   0230 PM CDT SUN JUN 22 2014

   AREAS AFFECTED...FAR SERN MN...PORTIONS OF ERN IA...SWRN WI...NWRN
   IL...NERN MO

   CONCERNING...SEVERE THUNDERSTORM WATCH 345...

   VALID 221930Z - 222030Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 345
   CONTINUES.

   SUMMARY...THE GREATEST SEVERE THREAT WILL EXIST OVER SOUTHERN
   PORTIONS OF THE WATCH AREA.

   DISCUSSION...STRONG/ISOLATED SVR TSTMS OVER SRN PORTIONS OF WW 345
   WILL CONTINUE TO HAVE THE POTENTIAL TO PRODUCE LARGE HAIL/DAMAGING
   WINDS GIVEN MLCAPE OF AROUND 2000 TO 2500 J/KG. IN
   ADDITION...STRONG/SVR TSTMS HAVE DEVELOPED JUST W OF WW AND THESE
   STORMS MAY MOVE INTO FAR WRN PORTIONS OF THE WATCH AREA THRU 21Z.
   THE 18Z DVN SOUNDING SAMPLED FAIRLY MODEST LOW/MID LEVEL WINDS...BUT
   25 KT MID-LEVEL FLOW WILL BE SUFFICIENT FOR STORM ORGANIZATION AND A
   CONTINUED SVR THREAT. 

   OVER NRN PORTIONS OF THE WATCH AREA...GUST FRONT HAS MOVED OUT WELL
   AHEAD OF THE WEAKENING CONVECTIVE LINE...AND CIRRUS HAS OVERSPREAD
   AREAS IN ADVANCE OF THE LINE LIMITING THE POTENTIAL FOR
   HEATING/DESTABILIZATION. STILL...SOME HEATING IS OCCURRING /REF MID
   80S SFC TEMP AT KLNR/ AND THE POTENTIAL EXISTS FOR NEW TSTM
   DEVELOPMENT ALONG THE GUST FRONT OVER SWRN WI.

   ..BUNTING.. 06/22/2014


   ATTN...WFO...GRB...ILX...MKX...LSX...DVN...ARX...DMX...

   LAT...LON   44349142 44399031 44078974 41258988 40359052 40189133
               40369224 41169232 42199217 43649154 44349142 

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Page last modified: June 22, 2014
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