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281 

WWUS20 KWNS 230130

SEL6

SPC WW 230130

ILZ000-INZ000-KYZ000-MOZ000-230800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 6

NWS STORM PREDICTION CENTER NORMAN OK

730 PM CST SUN JAN 22 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ILLINOIS

       EXTREME SOUTHWEST INDIANA

       WESTERN KENTUCKY

       SOUTHEAST MISSOURI



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 730 PM UNTIL

200 AM CST.



TORNADOES...HAIL TO 1.5 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES WEST NORTHWEST OF

EVANSVILLE INDIANA TO 50 MILES SOUTH OF CAPE GIRARDEAU MISSOURI.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 5...



DISCUSSION...THUNDERSTORMS ARE DEVELOPING NEWD FROM AR TO SE

MO...AND THIS TREND WILL CONTINUE THE NEXT SEVERAL HOURS AS THE LOW

LEVELS DESTABILIZE AND A COOL AIR MASS ERODES.  THOUGH SURFACE-BASED

INSTABILITY WILL BE WEAK AND MAINLY CONFINED TO THE SRN HALF OF THE

WATCH AREA...VERY STRONG VERTICAL SHEAR WILL BE SUPPORTIVE OF BOTH

EMBEDDED SUPERCELLS AND QLCS CIRCULATIONS CAPABLE OF PRODUCING A FEW

TORNADOES.  OTHERWISE...UPSCALE GROWTH INTO A LINE IS

EXPECTED...WITH AN ACCOMPANYING RISK FOR DAMAGING WINDS GIVEN THE

FAST STORM MOTIONS AND 60-70 KT WINDS JUST ABOVE THE SURFACE.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 24050.





...THOMPSON

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