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WWUS20 KWNS 032043

SEL7

SPC WW 032043

KSZ000-MOZ000-040400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 437

NWS STORM PREDICTION CENTER NORMAN OK

340 PM CDT TUE JUN 3 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       FAR EASTERN KANSAS

       NORTHERN MISSOURI



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 340 PM UNTIL

1100 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 65 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST SOUTHWEST OF

LEAVENWORTH KANSAS TO 55 MILES EAST SOUTHEAST OF KIRKSVILLE

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 434...WW 435...WW 436...



DISCUSSION...THUNDERSTORM DEVELOPMENT APPEARS LIKELY DURING THE NEXT

1-3 HOURS ACROSS NRN MO AS CAP WEAKENS AND AIR MASS BECOMES VERY

UNSTABLE.  AXIS OF STRONG SURFACE HEATING NOSING INTO NWRN MO MAY

PROVIDE INITIAL IMPETUS FOR DEVELOPMENT BY 5-6 PM...WITH

THUNDERSTORMS BECOMING MORE WIDESPREAD ACROSS WW EARLY THIS EVENING.

 SHEAR WILL REMAIN QUITE FAVORABLE FOR SUPERCELLS...WITH EVENTUAL

EVOLUTION INTO MCS/LINEAR CONVECTIVE SYSTEM POSSIBLE LATER THIS

EVENING.  LARGE HAIL...SOME OF WHICH COULD BE QUITE LARGE...IS

EXPECTED WITH THE STRONGER STORMS.  LOW LEVEL SHEAR...ALTHOUGH

MODEST...WILL ALSO BE FAVORABLE FOR A THREAT OF ISOLATED TORNADOES.

WIND DAMAGE POTENTIAL MAY INCREASE WITH THESE STORMS SHOULD

ORGANIZATION INCREASE THROUGH THE MID TO LATE EVENING.



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

550. MEAN STORM MOTION VECTOR 26025.





...EVANS

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