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446 

WWUS20 KWNS 122231

SEL4

SPC WW 122231

KSZ000-MOZ000-130600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 294

NWS STORM PREDICTION CENTER NORMAN OK

530 PM CDT THU MAY 12 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR EASTERN KANSAS

       WEST CENTRAL THROUGH NORTH CENTRAL MISSOURI



EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 530 PM

UNTIL 100 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 80 MILES SOUTH OF KNOB

NOSTER MISSOURI TO 35 MILES WEST NORTHWEST OF KIRKSVILLE

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 290...WW 291...WW

292...WW 293...



DISCUSSION...TSTMS EXPECTED TO CONTINUE MOVING/DEVELOPING NEWD ALONG

LOW LVL MOISTURE/INSTABILITY AXIS AS AREA OF ASCENT SPREADS ENEWD

AHEAD OF SLOWLY PROGRESSIVE KS/NEB UPR LOW.  THERMODYNAMIC AND WIND

PROFILES APPEAR MOST FAVORABLE FOR LARGE HAIL AND LOCALLY DMGG WIND

FROM SUPERCELL/SUSTAINED MULTICELLS THAT MAY EVOLVE INTO SHORT

LINES/SMALL CLUSTERS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 23030.





...CORFIDI

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