[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 142025
SEL4
SPC WW 142025
INZ000-KYZ000-OHZ000-TNZ000-150400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 614
NWS STORM PREDICTION CENTER NORMAN OK
425 PM EDT SAT AUG 14 2010

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

       SOUTHERN INDIANA
       KENTUCKY
       SOUTHERN OHIO
       NORTHWEST AND NORTHERN MIDDLE TENNESSEE

EFFECTIVE THIS SATURDAY AFTERNOON FROM 425 PM UNTIL MIDNIGHT EDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES EITHER SIDE OF A LINE FROM 65 MILES SOUTHWEST OF
CLARKSVILLE TENNESSEE TO 35 MILES NORTH NORTHEAST OF ATHENS OHIO.
 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

DISCUSSION...SW-NE ORIENTED BAND OF TSTMS SHOULD CONTINUE TO
INCREASE IN COVERAGE AND INTENSITY THIS AFTERNOON AS GROWING
STORM-SCALE COLD POOLS INTERACT WITH A HOT...MOIST AND UNSTABLE AIR
MASS WITH MLCAPE OF 3000-4000 J/KG.  WHILE VERTICAL SHEAR IS NOT
PARTICULARLY STRONG...THE FAVORABLE THERMODYNAMIC ENVIRONMENT WILL
FAVOR STRONG DOWNDRAFT DEVELOPMENT WITH THE RISK FOR DAMAGING WINDS
THROUGH THIS EVENING.

AVIATION...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 27025.


...MEAD

This weather bulletin was brought to you by:
www.nashvilleweather.net