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Mesoscale Discussion 757
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   MESOSCALE DISCUSSION 0757
   NWS STORM PREDICTION CENTER NORMAN OK
   0717 AM CDT FRI MAY 08 2009
   
   AREAS AFFECTED...SERN KS...NERN OK...SRN MO...NRN AR
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 266...
   
   VALID 081217Z - 081315Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 266
   CONTINUES.
   
   DAMAGING SQUALL LINE IS MOVING ESEWD AT 60 KT AS MCS BEGINS TO TURN
   A BIT MORE SWD ALONG EDGE OF STRONG CAP OVER OK.  ADDITIONALLY...A
   FEW SUPERCELLS HAVE RECENTLY DEVELOPED WITHIN WARM ADVECTION PORTION
   OF THIS MCS...AHEAD OF PRIMARY BOW WITHIN SEVERAL NW-SE ORIENTED
   LINES.  IN SUPPORT OF THIS DEVELOPMENT THE 12Z SOUNDING FROM SGF IS
   VERY UNSTABLE WITH MUCAPE ON THE ORDER OF 3500-4000 J/KG IF LIFTING
   A PARCEL JUST OFF THE SFC NEAR 900 MB.  NEEDLESS TO SAY WIDESPREAD
   SIGNIFICANT DAMAGE WILL ACCOMPANY THE BOW AS IT RACES ALONG THE
   MO/AR BORDER OVER THE NEXT FEW HOURS.  AT THIS SPEED IT WILL
   APPROACH THE SERN PORTIONS OF THE WATCH BETWEEN 15-16Z.
   
   ..DARROW.. 05/08/2009
   
   
   ATTN...WFO...LZK...SGF...TSA...ICT...
   
   LAT...LON   37789432 37099154 36069159 35949311 36639524 37549562
               37789432 
   
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Page last modified: May 08, 2009
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