WATCHES: Tornado Watch Number 181

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

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