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Mesoscale Discussion 271
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   MESOSCALE DISCUSSION 0271
   NWS STORM PREDICTION CENTER NORMAN OK
   0816 PM CDT THU APR 03 2014

   AREAS AFFECTED...NERN AR...SERN MO...FAR SRN IL...FAR SWRN IND...AND
   PART OF WRN KY/NWRN TN

   CONCERNING...TORNADO WATCH 53...

   VALID 040116Z - 040215Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 53 CONTINUES.

   SUMMARY...SEVERE STORMS PRODUCING ALL SEVERE WEATHER HAZARDS REMAIN
   A THREAT ACROSS WW 53.  A NEW TORNADO WATCH IS LIKELY FOR PARTS OF
   NERN AR...FAR NWRN TN/WRN KY...FAR SRN IL AND ADJACENT SWRN IND.

   DISCUSSION...TRENDS IN REGIONAL RADAR IMAGERY EARLY THIS EVENING
   SHOWED STRONG TO SEVERE STORMS DEVELOPING FROM NORTH CENTRAL AR NEWD
   THROUGH SERN MO AND INTO FAR SRN IL...WITH THIS ACTIVITY OCCURRING
   IN AN AREA OF STRENGTHENING AND BACKING LOW LEVEL WINDS.  THESE
   STRONGER SLY WINDS ARE ENHANCING LOW LEVEL WAA AND SHEAR...AS HEIGHT
   FALLS SPREADING ACROSS AND E OF WW 53 THIS EVENING FURTHER SUPPORT
   NEW TSTM DEVELOPMENT...BOTH NEAR A WARM FRONT IN SERN MO TO FAR SRN
   IL AND WRN KY...AND WITHIN A MOIST AND UNSTABLE WARM SECTOR.

   EFFECTIVE BULK SHEAR EXCEEDING 50 KT IS SUPPORTIVE OF ORGANIZED
   STORMS...INCLUDING SUPERCELLS...WHILE PAH WSR-88D VWP SHOWED THE
   STRENGTHENING LOW LEVEL WINDS RESULTING IN SFC-1 KM SHEAR AROUND 40
   KT AND 0-3 KM SRH AROUND 500 M2/S2.

   ..PETERS/THOMPSON.. 04/04/2014


   ATTN...WFO...OHX...PAH...MEG...LSX...LZK...SGF...

   LAT...LON   34609129 34319252 34649392 35879327 37719143 37969018
               38198877 37978761 37538727 36488799 35848883 35358984
               34609129 

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Page last modified: April 04, 2014
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