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Mesoscale Discussion 574
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   MESOSCALE DISCUSSION 0574
   NWS STORM PREDICTION CENTER NORMAN OK
   0832 PM CDT SUN MAY 11 2014

   AREAS AFFECTED...NORTHEAST IL...NORTHWEST INDIANA

   CONCERNING...SEVERE THUNDERSTORM WATCH 144...

   VALID 120132Z - 120230Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 144
   CONTINUES.

   SUMMARY...STRONG CONVECTION HAS SHIFTED ACROSS ALL BUT SRN PORTIONS
   OF WW 144.  HAIL/WIND REMAIN POSSIBLE FROM SE OF PIA TO NEAR LAF FOR
   THE NEXT FEW HOURS.

   DISCUSSION...LONG-LIVED MCS HAS PROGRESSED ACROSS ALL BUT THE
   NORTHEASTERN PART OF IL WITH LEADING EDGE OF THIS ACTIVITY NOW
   SPREADING ACROSS NRN INDIANA.  RADAR-INDICATED HAIL SIGNATURES HAVE
   WEAKENED WITH THIS CONVECTION BUT MARGINALLY SEVERE HAIL REMAINS
   POSSIBLE...ESPECIALLY ALONG A CORRIDOR FROM TAZEWELL COUNTY IL TO
   JASPER COUNTY INDIANA.  WITH LOW LEVEL WARM ADVECTION EXPECTED TO
   FOCUS ACROSS IA DURING THE OVERNIGHT HOURS THERE MAY BE A PROPENSITY
   FOR SOME BACKBUILDING ALONG THE WRN FLANK OF THIS ACTIVITY.  EVEN SO
   IT APPEARS THE OVERALL SEVERE THREAT SHOULD SLOWLY WANE.

   ..DARROW.. 05/12/2014


   ATTN...WFO...IWX...IND...LOT...ILX...

   LAT...LON   40708963 41328635 40468608 40148898 40708963 

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Page last modified: May 12, 2014
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