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Mesoscale Discussion 72
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   MESOSCALE DISCUSSION 0072
   NWS STORM PREDICTION CENTER NORMAN OK
   0119 PM CST TUE JAN 29 2013
   
   AREAS AFFECTED...NERN OK AND NWRN AR NNEWD INTO CNTRL MO
   
   CONCERNING...TORNADO WATCH 6...9...
   
   VALID 291919Z - 292015Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 6...9...CONTINUES.
   
   SUMMARY...THE THREAT FOR SVR WINDS AND TORNADOES CONTINUES ACROSS
   TORNADO WATCHES 6 AND 9.
   
   DISCUSSION...SGF WSR-88D DATA DEPICT SHALLOW MESOVORTICES EVOLVING
   WITHIN THE SQUALL LINE THAT EXTENDS FROM CNTRL MO INTO NERN OK.
   THESE FEATURES HAVE BECOME BETTER DEFINED AS THE LINE HAS APPROACHED
   THE RDA...ALLOWING FOR BETTER SAMPLING OF LOW-LEVEL CIRCULATIONS. A
   PAIR OF SUCH CIRCULATIONS IS EVIDENT IN NRN GREENE COUNTY MO...WITH
   ADDITIONAL CIRCULATIONS EVIDENT TO THE NE AND SW. WITH AROUND 350
   M2/S2 OF 0-1-KM SRH PER SGF VWP DATA...THESE MESOVORTICES WILL
   REMAIN POSSIBLE AS THE LINE ADVANCES EWD...AND MAY BE ASSOCIATED
   WITH DMGG WINDS AND TORNADOES AMIDST MARGINAL BUOYANCY. THIS COULD
   BE OF INCREASING CONCERN AS THE COLD POOL ACCOMPANYING THE SQUALL
   LINE OVERTAKES LEADING CONVECTION DURING THE NEXT HOUR OR
   TWO...POTENTIALLY YIELDING AN UPTICK IN CONVECTIVE INTENSITY.
   
   ..COHEN.. 01/29/2013
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
   
   ATTN...WFO...LSX...LZK...SGF...TSA...
   
   LAT...LON   36439506 35879564 35509569 35439432 35899335 37199236
               38669125 39299134 39309194 38659247 37419364 36439506 
   
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