SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 163
   NWS STORM PREDICTION CENTER NORMAN OK
   1135 AM CDT FRI APR 7 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          PART OF NORTHERN AND CENTRAL ALABAMA
          SOUTHEAST ARKANSAS
          NORTHEAST LOUISIANA
          NORTHERN AND CENTRAL MISSISSIPPI
   
   EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1135 AM UNTIL 800
   PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
   THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
   POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST OF MONROE
   LOUISIANA TO 45 MILES SOUTHEAST OF HUNTSVILLE ALABAMA. FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU3).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 162...
   
   DISCUSSION...VERY POTENT TORNADIC SUPERCELL ENVIRONMENT IN PLACE
   LOWER MS VALLEY AS STRONG UPPER TROUGH AND SURFACE LOW MOVE EWD
   ACROSS CENTRAL AND SOUTHERN PLAINS.  STRONG DEEP LAYER SHEAR...VERY
   STEEP MID LEVEL LAPSE RATES  AND MLCAPES IN EXCESS OF 2000 J/KG WILL
   LEAD TO RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS VICINITY LOWER MS
   VALLEY EARLY THIS AFTERNOON.  TORNADIC SUPERCELLS ARE EXPECTED WITH
   POTENTIAL FOR VIOLENT/LONG TRACK TORNADOES AS ACTIVITY DEVELOPS EWD
   ACROSS WATCH AREA THRU THE EVENING.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 24040.
   
   
   ...HALES