MESOSCALE DISCUSSION 2080
   NWS STORM PREDICTION CENTER NORMAN OK
   0728 PM CDT SUN OCT 14 2007
   
   AREAS AFFECTED...WRN OK AND NWRN TX
   
   CONCERNING...TORNADO WATCH 704...
   
   VALID 150028Z - 150130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 704 CONTINUES.
   
   AT 00Z...MAIN BAND OF CONVECTION WITHIN WW AREA EXTENDED ALONG A
   COLD FRONT FROM NORTH OF END TO SOUTH OF ALTUS. A WEAK SURFACE WAVE
   WAS LOCATED ALONG THE FRONT IN ERN ERN WASHITA COUNTY OK...WITH A
   SLIGHTLY DEEPER LOW LOCATED ALONG THE RED RIVER SOUTH OF ALTUS. THE
   DRYLINE EXTENDED SSWWD FROM THE ALTUS LOW INTO NWRN TX AND
   CONVECTION WAS GRADUALLY DEVELOPING SWD ALONG THE DRYLINE. ALTHOUGH
   40-50 KT DEEP LAYER SHEAR WILL FAVOR SOME MID LEVEL ROTATION...THE
   ORIENTATION OF THE SWLY MID/HIGH LEVEL FLOW PARALLEL TO THE FRONT
   WILL LIKELY RESULT IN STRONG DOWNDRAFTS...WITH WIND DAMAGE AND HAIL
   MOSTLY LIKELY. 
   
   WEAK CONVECTION...ROOTED ABOVE THE BOUNDARY LATER...ALSO EXTENDED
   FROM SE OF SPS TO NEAR OKC. THIS CONVECTION...THUS FAR HAS BEEN
   UNABLE TO ROOT INTO THE BOUNDARY LAYER...EVEN THOUGH THE 00Z OUN
   SOUNDING INDICATED THE CAPPING INVERSION FROM THIS MORNING WAS GONE.
   HOWEVER...THIS CONVECTION MAY SLOWLY INCREASE IN INTENSITY AS THE
   MID/UPPER LEVELS GRADUALLY COOL THROUGH THE EVENING. HAIL WOULD BE
   THE MAIN THREAT WITH THESE STORMS.
   
   ..IMY.. 10/15/2007
   
   
   ATTN...WFO...OUN...
   
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