[BNAWX] Severe Local Storm Watch and Watch Cancellation MSG

[EMWIN Server]

WWUS20 KWNS 251427
SEL2
SPC WW 251427
TNZ000-252300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 392
NWS STORM PREDICTION CENTER NORMAN OK
925 AM CDT THU MAY 25 2006

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

       MIDDLE INTO EASTERN TENNESSEE

EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 925 AM UNTIL 600
PM CDT.

HAIL TO 2 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 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 80 MILES WEST
SOUTHWEST OF NASHVILLE TENNESSEE TO 50 MILES EAST OF CROSSVILLE
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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...LINE/CLUSTER OF STRONG TO SEVERE THUNDERSTORMS NOW
INCREASING OVER NRN MIDDLE TN EXPECTED TO STRENGTHEN WITH DAYTIME
HEATING.  MODIFIED SOUNDING AT NASHVILLE INDICATES AIR MASS WILL
BECOME MODERATELY UNSTABLE SHORTLY.  IN ADDITION...REGION REMAINS
WITHIN 35-45 KT WNWLY MID LEVEL FLOW AND SWLY LLJ IS FORECAST TO
STRENGTHEN INTO MIDDLE/WRN TN THROUGH THE DAY. THEREFORE...SHEAR
WILL BE SUFFICIENT FOR SUPERCELLS AND LINES/BOW ECHOES AS ACTIVITY
MOVES ESEWD TOWARDS THE SRN APPALACHIANS...AND POSSIBLY BACK-BUILDS
ACROSS MIDDLE AND INTO WRN TN...THROUGH THE DAY.

AVIATION...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 500. MEAN STORM
MOTION VECTOR 29035.


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