

697 

WWUS20 KWNS 231738

SEL1

SPC WW 231738

KYZ000-OHZ000-TNZ000-WVZ000-240100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 541

NWS STORM PREDICTION CENTER NORMAN OK

1240 PM CDT THU JUN 23 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       LARGE PART OF CENTRAL AND EASTERN KENTUCKY

       PARTS OF SOUTHERN OHIO

       PARTS OF MIDDLE TENNESSEE

       PARTS OF WESTERN WEST VIRGINIA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL

800 PM CDT.



TORNADOES...HAIL TO 2 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 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH SOUTHEAST OF

NASHVILLE TENNESSEE TO 30 MILES NORTH NORTHWEST OF CHARLESTON

WEST VIRGINIA.  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 DEVELOPING ALONG/AHEAD OF THE COLD FRONT

WHERE AIR MASS HAS DESTABILIZED AND NEARLY UNCAPPED.  WITH MLCAPES

AOA 2000 J/KG ALONG WITH 30-40KT OF SHEAR...POTENTIAL FOR SUPERCELLS

WILL INCREASE THROUGH THE AFTERNOON.  IN ADDITION TO DAMAGING

WINDS...TORNADOES WILL BE POSSIBLE WITH ANY SUPERCELL.  STORMS

EXPECTED TO DEVELOP INTO CLUSTERS...LINE SEGMENTS WITH WIND DAMAGE

POTENTIAL.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 24035.





...HALES

