MESOSCALE DISCUSSION 2340
   NWS STORM PREDICTION CENTER NORMAN OK
   1004 AM CST THU DEC 19 2002
   
   AREAS AFFECTED...SRN AND ERN LA / SWRN AND CENTRAL MS
   
   CONCERNING...TORNADO WATCH 792...
   
   VALID 191604Z - 191800Z
   
   DAMAGING WIND / TORNADO THREAT CONTINUES ACROSS VALID PORTIONS OF
   WW.
   
   LINE OF THUNDERSTORMS ALONG SURFACE BOUNDARY CONTINUES MOVING EWD
   AT 40 TO 45 KTS THROUGH MARGINALLY UNSTABLE AIRMASS ACROSS THE
   CENTRAL PORTION OF WW ATTM.  TRANSIENT LEWPS / BOWS HAVE BEEN
   OBSERVED WITHIN THE LINE OVER THE PAST COUPLE OF HOURS...AND
   GIVEN FAVORABLE LOW-LEVEL SHEAR AND STRONG DEEP-LAYER
   PROFILES...EMBEDDED ROTATING STORMS WITH AN ENHANCED TORNADO /
   DAMAGING WIND THREAT WILL LIKELY PERSIST WITHIN THE LINE OVER THE
   NEXT COUPLE OF HOURS.
   
   ..GOSS.. 12/19/2002
   
   
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