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476 

WWUS20 KWNS 271007

SEL7

SPC WW 271007

KYZ000-TNZ000-271500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 227

NWS STORM PREDICTION CENTER NORMAN OK

510 AM CDT WED APR 27 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL KENTUCKY

       MIDDLE AND SOUTHEASTERN TENNESSEE



EFFECTIVE THIS WEDNESDAY MORNING FROM 510 AM UNTIL 1000 AM CDT.



TORNADOES...HAIL TO 1.5 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHEAST OF

LEXINGTON KENTUCKY TO 50 MILES SOUTH OF NASHVILLE TENNESSEE.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 TORNADO

WATCH NUMBER 224. WATCH NUMBER 224 WILL NOT BE IN EFFECT AFTER

510 AM CDT. CONTINUE...WW 225...WW 226...



DISCUSSION...SQUALL LINE WITH EMBEDDED SUPERCELL AND BOWING

STRUCTURES WILL ADVANCE EWD THROUGH CNTRL KY AND MIDDLE TN DURING

THE EARLY MORNING. INSTABILITY IS MARGINAL...BUT ACTIVITY WILL

REMAIN EMBEDDED WITHIN STRONG LOW LEVEL AND DEEP LAYER SHEAR WITH

POTENTIAL FOR ISOLATED TORNADOES AND DAMAGING WIND.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...DIAL

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