

553 

WWUS20 KWNS 191753

SEL1

SPC WW 191753

KYZ000-NCZ000-TNZ000-200000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 511

NWS STORM PREDICTION CENTER NORMAN OK

155 PM EDT SUN JUN 19 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST KENTUCKY

       SMALL PART OF WESTERN NORTH CAROLINA

       MUCH OF MIDDLE AND EASTERN TENNESSEE



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 155 PM UNTIL 800

PM EDT.



TORNADOES...HAIL TO 2 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 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTHWEST OF

NASHVILLE TENNESSEE TO 45 MILES EAST OF KNOXVILLE TENNESSEE.  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.



DISCUSSION...THUNDERSTORMS WILL DEVELOP ACROSS THE WATCH AREA AS AIR

MASS DESTABILIZES EWD.  WITH MLCAPES AOA 2500 J/KG AND PRESENCE OF

40-50KT OF SHEAR...SUPERCELLS ARE LIKELY. PRIMARY THREAT WILL BE

DAMAGING WINDS AS STORMS EVOLVE INTO BOWING SEGMENTS...BUT WITH THE

STRONG SHEAR A COUPLE OF TORNADOES ARE POSSIBLE AS WELL.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 27035.





...HALES

