MESOSCALE DISCUSSION 2105
   NWS STORM PREDICTION CENTER NORMAN OK
   0202 AM CDT THU OCT 18 2007
   
   AREAS AFFECTED...ERN MO...WRN IL AND AR
   
   CONCERNING...TORNADO WATCH 716...717...
   
   VALID 180702Z - 180800Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 716...717...CONTINUES.
   
   ONE BAND OF STRONG TO SEVERE STORMS EXTENDED FROM NEAR POF...IN SERN
   MO SWD...TO ABOUT 60E OF LIT...WHILE ANOTHER BAND WAS LOCATED ALONG
   THE MS RIVER NEAR THE MO/IL LINE FROM NEAR UIN TO FAM. BOTH LINES OF
   STORMS WERE MOVING ENEWD AT 45-50 KT. THE LINEAR NATURE OF THESE
   STORMS...VERY STRONG ENVIRONMENTAL WINDS AND RAPID MOTION OF LINE
   SUGGESTS WIND DAMAGE IS THE MAIN THREAT. HOWEVER...THE MOIST
   BOUNDARY LAYER AND 1 KM SHEAR NEAR 40 KT ARE ALSO FAVORABLE FOR
   ISOLATED TORNADOES.
   
   ..IMY.. 10/18/2007
   
   
   ATTN...WFO...PAH...ILX...MEG...LSX...LZK...SGF...
   
   33609215 34669333 36629218 37959119 39369089 39809082
   39718972 39428890 38678871 36718984 34299126 33609143