MESOSCALE DISCUSSION 2108
   NWS STORM PREDICTION CENTER NORMAN OK
   0858 PM CDT FRI OCT 25 2002
   
   AREAS AFFECTED...ERN LA / SRN MS
   
   CONCERNING...TORNADO WATCH 728...
   
   VALID 260158Z - 260400Z
   
   AREA OF SHOWERS AND THUNDERSTORMS ALONG WITH ISOLATED SUPERCELLS
   CONTINUES ACROSS ERN LA AND ADJACENT SRN MS.  A THREAT FOR
   ISOLATED TORNADOES CONTINUES.
   
   SIL /SLIDELL LA/ WSR-88D SRM LOOP OVER THE PAST HOUR HAS REVEALED
   SEVERAL VELOCITY COUPLETS ASSOCIATED WITH ISOLATED SMALL
   SUPERCELLS.  STRONGEST STORM ATTM IS MOVING ENEWD ACROSS SERN
   PORTIONS OF LAKE PONTCHARTRAIN...BUT MOST OF THE CIRCULATIONS
   HAVE BEEN RELATIVELY SHORT-LIVED / TRANSIENT.
   
   NONETHELESS...1200 J/KG MEAN-LAYER CAPE ALONG WITH 20 KT 0-1 KM
   SHEAR INDICATED BY LIX /SLIDELL LA/ 00Z RAOB ALONG WITH VERY
   MOIST LOW-LEVEL AIRMASS SUGGESTS THAT THE TORNADO THREAT WILL
   CONTINUE FOR THE NEXT COUPLE OF HOURS.
   
   ..GOSS.. 10/26/2002
   
   
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