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000 

WWUS20 KWNS 041945

SEL1

SPC WW 041945

KSZ000-NEZ000-050200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 451

NWS STORM PREDICTION CENTER NORMAN OK

245 PM CDT WED JUN 4 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTH CENTRAL KANSAS

       CENTRAL AND EASTERN NEBRASKA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL

900 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 65 MILES WEST SOUTHWEST OF

KEARNEY NEBRASKA TO 25 MILES SOUTH SOUTHEAST OF OMAHA NEBRASKA.

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 446...WW 447...WW

448...WW 449...WW 450...



DISCUSSION...SCATTERED THUNDERSTORMS ARE RAPIDLY DEVELOPING OVER

SOUTH CENTRAL NEB IN VICINITY OF WEAK SURFACE BOUNDARIES.  THESE

STORMS WILL LIKELY BECOME SUPERCELLULAR WITH A RISK OF VERY LARGE

HAIL AND DAMAGING WINDS.  ISOLATED TORNADOES ARE ALSO POSSIBLE...AND

THREAT WILL LIKELY INCREASE THROUGH THE EVENING AS LOW LEVEL WINDS

STRENGTHEN.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 25030.





...HART

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