SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 888
   NWS STORM PREDICTION CENTER NORMAN OK
   805 PM CST SAT DEC 3 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHERN KENTUCKY
          EXTREME SOUTHEAST MISSOURI
          NORTHERN TENNESSEE
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 805 PM UNTIL
   300 AM CST.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES EAST
   SOUTHEAST OF LONDON KENTUCKY TO 35 MILES NORTHWEST OF DYERSBURG
   TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
   PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
   WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
   WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
   TORNADOES.
   
   DISCUSSION...TSTM COVERAGE EXPECTED TO INCREASE THROUGH EARLY SUNDAY
   ACROSS PARTS OF THE TN/LWR OH VLY REGION AS LARGE SCALE ASCENT
   INCREASES WITH CONTINUED ENE MOTION OF 80+ KT MID LEVEL JET STREAM
   NOW OVER OK/WRN AR. MODEST DEGREE OF ELEVATED INSTABILITY MAY BE
   SUFFICIENTLY ENHANCED BY MOISTURE INFLUX ASSOCIATED WITH 40-50 KT
   SWLY LLJ TO YIELD SCATTERED STORMS/POSSIBLE SUPERCELLS WITH HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM
   MOTION VECTOR 25050.
   
   
   ...CORFIDI