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Mesoscale Discussion 410
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   MESOSCALE DISCUSSION 0410
   NWS STORM PREDICTION CENTER NORMAN OK
   1208 PM CDT MON APR 06 2009
   
   AREAS AFFECTED...ERN NC/SERN VA
   
   CONCERNING...TORNADO WATCH 122...
   
   VALID 061708Z - 061815Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 122 CONTINUES.
   
   TSTMS ALONG AND AHEAD OF A FAST MOVING COLD FRONT...WHICH EXTENDED
   FROM SERN VA SSWWD THROUGH ERN NC TO OFF THE SC COAST...CONTINUE TO
   POSE A THREAT FOR TORNADOES.
   
   AT 17Z...A SMALL WARM SECTOR REMAINED OVER INLAND AREAS AHEAD OF THE
   COLD FRONT ACROSS ERN NC AND FAR SERN VA...WHERE THE AIR MASS IS
   MODERATELY UNSTABLE AND STRONGLY SHEARED /EFFECTIVE SHEAR 50-70 KT/.
   55 KT SSWLY LLJ TRANSLATING EWD ACROSS FAR ERN NC IS MAINTAINING
   STRONG LOW LEVEL SHEAR FOR TORNADO DEVELOPMENT /0-1 KM SHEAR 35-40
   KT AND 0-1 KM SRH 300-400 M2/S2/.  CURRENT RADAR TRENDS SUGGEST THE
   COLD FRONT SHOULD MOVE OFFSHORE BY 19Z...THUS ENDING ANY ADDITIONAL
   SEVERE THREAT BEYOND THAT TIME.
   
   ..PETERS.. 04/06/2009
   
   
   ATTN...WFO...AKQ...MHX...
   
   LAT...LON   34197720 34577751 35607681 36687675 37627648 37907630
               37927491 37307534 36107525 35187496 34907519 34227636
               34197720 
   
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