SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 555
   NWS STORM PREDICTION CENTER NORMAN OK
   725 PM CDT SUN JUL 4 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTH CENTRAL KANSAS
          CENTRAL AND PART OF NORTHEAST NEBRASKA
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 725 PM UNTIL
   200 AM CDT.
   
   HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 70 STATUTE MILES
   EAST AND WEST OF A LINE FROM 70 MILES NORTHWEST OF NORFOLK
   NEBRASKA TO 50 MILES EAST SOUTHEAST OF HILL CITY KANSAS.
   
   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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 551...WW 553...WW 554...
   
   DISCUSSION...ACTIVE EVENING EXPECTED ONCE AGAIN ACROSS WW...AS ONE
   OR TWO MCSS TRACK GENERALLY EWD THROUGH 07Z.  AIR MASS IS MODERATELY
   UNSTABLE WITH SUFFICIENT SHEAR FOR ORGANIZED LINES/BOW
   ECHOES...RESULTING IN A THREAT OF DAMAGING WINDS AND LARGE HAIL. 
   ORIENTATION OF SHEAR VECTORS PERPENDICULAR TO LINE ORIENTATION AND
   ENHANCED DOWNDRAFT POTENTIAL SUGGEST A FEW BOWING SEGMENTS COULD
   PRODUCE VERY STRONG OUTFLOW WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 28035.
   
   
   ...EVANS