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WWUS20 KWNS 110403

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SPC WW 110403

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 654

NWS STORM PREDICTION CENTER NORMAN OK

1100 PM CDT FRI SEP 10 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHWEST AND CENTRAL MISSOURI



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1100 PM

UNTIL 500 AM CDT.



HAIL TO 1.5 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 60

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF

VICHY MISSOURI TO 25 MILES SOUTH SOUTHEAST OF MONETT 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 653...



DISCUSSION...CNTRL MO TO SE KS QLCS EXPECTED TO CONTINUE MAINLY

EWD...WITH TWO MAIN AREAS OF POSSIBLY ENHANCED SVR WIND THREAT

DEVELOPING LATER TONIGHT/EARLY SAT.  ONE AREA IN THE NEAR TERM MAY

EVOLVE FROM PORTION OF QLCS THAT HAS BECOME W-E ORIENTED NEAR SZL.

WIND AND INSTABILITY CONSIDERATIONS SUGGEST BOWING STRUCTURES IN

THAT REGION MAY TURN A BIT MORE S OF E OF THE NEXT FEW HOURS...

EXTENDING OCNL SVR WIND THREAT TOWARD AREA S OF COU/NW OF VIH.

FARTHER SW...A SEPARATE/LARGER SCALE BOW STRUCTURE MAY EVOLVE FROM

PART OF QLCS NOW NEARING CNU.  EMBEDDED SMALLER SCALE BOWS MAY MOVE

E INTO SW MO LATER TONIGHT/EARLY SAT WITH SVR WIND/POSSIBLE HAIL.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27030.





...CORFIDI

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