

884 

WWUS20 KWNS 102334

SEL1

SPC WW 102334

KSZ000-MOZ000-110600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 11

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CST TUE FEB 10 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST KANSAS

       LARGE PART OF SOUTHERN MISSOURI



EFFECTIVE THIS TUESDAY AFTERNOON FROM 535 PM UNTIL MIDNIGHT CST.



TORNADOES...HAIL TO 2.5 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 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST OF

CHANUTE KANSAS TO 40 MILES NORTHEAST OF WEST PLAINS MISSOURI.

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 8...WW 9...WW 10...



DISCUSSION...LOW LEVEL MOISTURE WILL CONTINUE TO SPREAD NWD ACROSS

WATCH AREA AHEAD OF DEEPENING SURFACE LOW OVER CENTRAL OK.  SHEAR

AND INSTABILITY WILL INCREASE THRU THE EVENING FAVORABLE FOR

SUPERCELLS AND TORNADOES. INITIAL CONCERN WILL BE THE LONG-LIVED

SUPERCELL OSAGE COUNTY OK  TRACKING INTO SERN KS.  ADDITIONAL STORMS

WILL BE DEVELOPING ACROSS THE WATCH THRU THE EVENING.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 24035.





...HALES

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