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Mesoscale Discussion 1474
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   MESOSCALE DISCUSSION 1474
   NWS STORM PREDICTION CENTER NORMAN OK
   0811 PM CDT SAT JUL 26 2014

   AREAS AFFECTED...PORTIONS OF ERN IL...CENTRAL/SRN IND...PORTIONS OF
   NRN/CENTRAL KY

   CONCERNING...SEVERE THUNDERSTORM WATCH 443...

   VALID 270111Z - 270215Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 443
   CONTINUES.

   SUMMARY...THE SEVERE WEATHER THREAT CONTINUES ACROSS THE WW AREA.
   DAMAGING WINDS AND ISOLATED LARGE HAIL WILL REMAIN POSSIBLE. A NEW
   WW IS BEING CONSIDERED TO THE SOUTHEAST OF WW 443.

   DISCUSSION...STG/SVR TSTMS WERE LOCATED ALONG AN ARC FROM NEAR IND
   TO BMG TO 20 N EVV. THE SRN PORTION OF THE LINE...WHICH REMAINS
   BETTER ORGANIZED RELATIVE TO NRN PORTIONS...HAS BEEN MOVING ESE AT
   35 KT ALONG AN APPARENT DIFFERENTIAL HEATING BOUNDARY AND
   INSTABILITY GRADIENT. IN THE SHORT TERM...A DEVELOPING COLD POOL AND
   MODEST PRESSURE FALL-RISE COUPLET WOULD SUPPORT A CONTINUED ESE
   MOTION...WITH A SLIGHT INCREASE IN FORWARD SPEED AS WINDS IN THE 850
   MB TO 700 MB LAYER STRENGTHEN IN THE 03Z-06Z TIME FRAME. LATEST
   HI-RES GUIDANCE ALSO SUPPORTS THE NOTION OF AN ORGANIZED CONVECTIVE
   LINE MOVING INTO NRN/CENTRAL KY DURING THE NEXT FEW HOURS. GIVEN
   THIS EXPECTED EVOLUTION...A NEW WW IS BEING CONSIDERED TO THE
   SOUTHEAST OF WW 443 IN THE NEXT HOUR.

   ..BUNTING.. 07/27/2014


   ATTN...WFO...ILN...LMK...IND...PAH...ILX...

   LAT...LON   39038726 39998652 40348594 40308560 40098537 39628510
               38858480 37898494 37408532 37138657 37218709 37228833
               37458880 37918897 38358838 39038726 

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Page last modified: July 27, 2014
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