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WWUS20 KWNS 031654

SEL1

SPC WW 031654

ILZ000-INZ000-KYZ000-MOZ000-040100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 111

NWS STORM PREDICTION CENTER NORMAN OK

1150 AM CDT TUE APR 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ILLINOIS

       FAR SOUTHWESTERN INDIANA

       WESTERN AND PARTS OF CENTRAL KENTUCKY

       MUCH OF THE SOUTHERN MISSOURI



EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1150 AM UNTIL 800

PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES NORTH OF JOPLIN

MISSOURI TO 20 MILES EAST OF EVANSVILLE INDIANA.  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 109...WW 110...



DISCUSSION...RAPID INTENSIFICATION OF THUNDERSTORMS EXPECTED ACROSS

THE WATCH AREA THROUGH THE AFTERNOON AS THE AIRMASS HAS BECOME VERY

UNSTABLE AND WEAKLY CAPPED.  SHEAR SUFFICIENT TO SUPPORT ORGANIZED

LINES/BOWS AND SUPERCELLS.  TORNADOS MOST LIKELY ASSOCIATED WITH ANY

SUPERCELL WITH POTENTIAL FOR WIDESPREAD DAMAGING WINDS DEVELOPING

SEWD FROM SRN MO INTO LOWER OH VALLEY BY MID AFTERNOON.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 27035.





...HALES

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