

050 

WWUS20 KWNS 222250

SEL1

SPC WW 222250

ILZ000-INZ000-KYZ000-MOZ000-230600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 181

NWS STORM PREDICTION CENTER NORMAN OK

550 PM CDT FRI APR 22 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHERN ILLINOIS

       PARTS OF SOUTHERN INDIANA

       A LARGE PART OF KENTUCKY

       PARTS OF SOUTHEAST MISSOURI



EFFECTIVE THIS FRIDAY AFTERNOON AND SATURDAY MORNING FROM 550 PM

UNTIL 100 AM 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 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTHEAST OF LONDON

KENTUCKY TO 25 MILES WEST NORTHWEST OF FARMINGTON 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...THIS TORNADO WATCH REPLACES SEVERE

THUNDERSTORM WATCH NUMBER 178. WATCH NUMBER 178 WILL NOT BE IN

EFFECT AFTER 550 PM CDT. CONTINUE...WW 179...WW 180...



DISCUSSION...E/W BOUNDARY ACROSS NRN KY INTO ERN MO WILL FOCUS

GREATEST POTENTIAL FOR SUPERCELLS AS THUNDERSTORMS DEVELOP ACROSS

THE WATCH THRU THE EVENING.  IN ADDITION TO LARGE HAIL...TORNADOS

WILL BE POSSIBLE WITH ANY SUPERCELL.  STORMS EXPECTED TO DEVELOP

UPSCALE INTO LINES/BOW ECHOES UNDER STRONG MID LEVEL WINDS

INCREASING THREAT OF DAMAGING WINDS DURING THE EVENING.



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 26035.





...HALES

