MESOSCALE DISCUSSION 2157
   NWS STORM PREDICTION CENTER NORMAN OK
   0327 AM CST FRI DEC 31 2010
   
   AREAS AFFECTED...NERN OK/SERN KS/NWRN AR/SWRN AND CENTRAL MO
   
   CONCERNING...TORNADO WATCH 765...
   
   VALID 310927Z - 311130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 765 CONTINUES.
   
   SEVERE/ISOLATED TORNADO THREAT CONTINUES ACROSS PARTS OF WW 765.
   
   EARLIER SUPERCELL STORMS HAVE SHIFTED NE OF WW 765 AND INTO WW 766
   AS EVOLVING/BOWING SEGMENTS.  HOWEVER...A SECOND/ORGANIZING LINE OF
   STORMS IS MOVING EWD ACROSS OK...MUCH OF WHICH IS SHIFTING INTO SWRN
   PORTIONS OF WATCH 765 ATTM.  WHILE THIS MORE LINEAR STORM MODE NOW
   FAVORS ISOLATED DAMAGING GUSTS...SHEAR PROFILES STILL SUPPORT
   LOW-LEVEL ROTATION AND THUS AN ISOLATED TORNADO REMAINS POSSIBLE
   WITHIN MORE COMPLEX/ROTATION PORTIONS OF THE LINE.
   
   ..GOSS.. 12/31/2010
   
   
   ATTN...WFO...LSX...LZK...SGF...EAX...TSA...ICT...
   
   LAT...LON   35959590 36449637 37259606 38349360 38379241 38099160
               36169355 35909452 35959590