MESOSCALE DISCUSSION 0543
   NWS STORM PREDICTION CENTER NORMAN OK
   0809 PM CDT SAT APR 23 2011
   
   AREAS AFFECTED...NRN AR...SRN MO...SRN IL/WRN KY
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 189...
   
   VALID 240109Z - 240315Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 189
   CONTINUES.
   
   A STRONG SUPERCELL THUNDERSTORM HAS FORMED OVER NWRN AR...MOVING
   INTO NEWTON COUNTY CURRENTLY...AND IS RIGHT ON THE MAIN FRONTAL
   BOUNDARY WHICH LIES W-E ACROSS NRN AR INTO SERN MO. 
   
   THIS STORM IS IN THE PRECIPITABLE WATER AXIS...WHICH IS HELPING TO
   SUSTAIN IT EVEN AS SURFACE TEMPERATURES ARE RELATIVELY COOL. WITH A
   30-40 KT LOW LEVEL JET...AND AMPLE FLOW ALOFT...THIS STORM MAY
   PERSIST FOR SOME TIME...AND A SMALL TORNADO WATCH REPLACEMENT IS
   BEING CONSIDERED FOR NRN AR.
   
   ELSEWHERE...HAIL CORES PERSIST OVER SRN MO...WITH STORMS FORMING
   INTO A LINE OVER SERN MO...WHICH WILL AFFECT THE PAH AREA THIS
   EVENING. HOWEVER...RELATIVELY COOL SURFACE TEMPERATURES MAY HAMPER
   THE WIND GUST POTENTIAL.
   
   ..JEWELL.. 04/24/2011
   
   
   ATTN...WFO...PAH...MEG...LSX...LZK...SGF...SHV...TSA...
   
   LAT...LON   34339453 35819451 37938876 36478876 34339453