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Mesoscale Discussion 458
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   MESOSCALE DISCUSSION 0458
   NWS STORM PREDICTION CENTER NORMAN OK
   0325 PM CDT SAT APR 25 2015

   AREAS AFFECTED...ERN MO...SRN IL AND INDIANA...WRN KY

   CONCERNING...TORNADO WATCH 112...

   VALID 252025Z - 252230Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 112 CONTINUES.

   SUMMARY...SEVERE WIND...HAIL...AND ISOLATED TORNADOES REMAIN
   POSSIBLE ACROSS THE TORNADO WATCH AREA...ESPECIALLY NEAR AND JUST S
   OF THE MAIN FRONT FROM SRN IN INTO IND AND NEAR THE OH RIVER.

   DISCUSSION...A SMALL LINE OF STORMS HAS GRADUALLY FORMED OVER SRN
   IL...WITH NRN EXTENT RIDING ALONG THE MAIN FRONT. IT APPEARS TO BE A
   SUPERCELL WITH ADDITIONAL DEVELOPMENT ON THE SWRN FLANK AS RADAR
   DOES SHOW A BROAD STORM-SCALE ROTATION RIDING ALONG THIS BOUNDARY.
   EXPECT THIS STORM TO BECOME MORE SEVERE WITH TIME.

   TO THE S...THE AIR MASS CONTINUES TO SLOWLY DESTABILIZE WITH
   TEMPERATURES WELL INTO THE 70S AND DEWPOINTS NEAR 60F. WITH
   TIME...OTHER CELLS MAY DEVELOP TO THE SW OF THE NRN CLUSTER. 
   OR...PERHAPS THE NRN CLUSTER WILL GROW-UPSCALE A BIT WITH ENHANCED
   THREAT OF DAMAGING WINDS. A BRIEF TORNADO MAY STILL OCCUR WITH ANY
   CELLS...AS WELL AS LARGE HAIL.

   ..JEWELL.. 04/25/2015


   ATTN...WFO...LMK...OHX...IND...PAH...ILX...LSX...SGF...

   LAT...LON   36418706 37369129 38849131 39028892 38598707 36418706 

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Page last modified: April 25, 2015
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