

000 

WWUS20 KWNS 050632

SEL1

SPC WW 050632

KSZ000-NEZ000-051300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 231

NWS STORM PREDICTION CENTER NORMAN OK

130 AM CDT SAT MAY 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTH CENTRAL KANSAS

       MUCH OF NEBRASKA



EFFECTIVE THIS SATURDAY MORNING FROM 130 AM UNTIL 800 AM CDT.



TORNADOES...HAIL TO 2.5 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 115 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF

AINSWORTH NEBRASKA TO 30 MILES EAST SOUTHEAST OF RUSSELL KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 228...WW 230...



DISCUSSION...NUMEROUS STRONG/SEVERE THUNDERSTORMS CONTINUE THIS

MORNING ACROSS PARTS OF NEB AND CENTRAL KS...INCLUDING A LONG-LIVED

TORNADIC SUPERCELL NEAR GBD.  THIS ACTIVITY WILL LIKELY PERSIST FOR

MUCH OF THE NIGHT AS IT TRACKS NORTHEASTWARD THROUGH A MOIST...

UNSTABLE...AND STRONGLY SHEARED ENVIRONMENT.  SUPERCELLS CAPABLE OF

LARGE HAIL...DAMAGING WINDS...AND TORNADOES ARE POSSIBLE.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 22030.





...HART

