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000 

WWUS20 KWNS 242030

SEL8

SPC WW 242030

KSZ000-MOZ000-250400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 178

NWS STORM PREDICTION CENTER NORMAN OK

325 PM CDT TUE APR 24 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN KANSAS

       WESTERN AND CENTRAL MISSOURI



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 325 PM UNTIL

1100 PM CDT.



TORNADOES...HAIL TO 2 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 60 MILES WEST NORTHWEST OF

SAINT JOSEPH MISSOURI TO 15 MILES SOUTH OF JOPLIN MISSOURI.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 172...WW 173...WW

174...WW 175...WW 176...WW 177...



DISCUSSION...TSTMS/SUPERCELLS EXPECTED TO INCREASE IN

COVERAGE/INTENSITY IN THE NEXT FEWS HOURS IN RESPONSE TO CONTINUED

SFC HEATING/CONVERGENCE.  POTENTIAL WILL EXIST FOR LARGE

HAIL/ISOLATED TORNADOES GIVEN DEGREE OF SFC-BASED INSTABILITY AND

OBSERVED/FCST WIND PROFILES...ASSUMING STORMS BECOME ROOTED IN THE

BOUNDARY LAYER.



AVIATION...TORNADOES AND 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 21035.





...CORFIDI

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