[BNAWX] Severe Local Storm Watch and Watch Cancellation MSG

[EMWIN Server]

WWUS20 KWNS 200412
SEL5
SPC WW 200412
KYZ000-NCZ000-TNZ000-201000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 365
NWS STORM PREDICTION CENTER NORMAN OK
1210 AM EDT SAT MAY 20 2006

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

       SOUTH CENTRAL KENTUCKY
       FAR WESTERN NORTH CAROLINA
       PARTS OF MIDDLE AND EASTERN TENNESSEE

EFFECTIVE THIS SATURDAY MORNING FROM 1210 AM UNTIL 600 AM 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF
BOWLING GREEN KENTUCKY TO 55 MILES SOUTH SOUTHEAST OF KNOXVILLE
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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...ELEVATED THUNDERSTORMS WILL INCREASE IN
COVERAGE/INTENSITY FOR THE NEXT FEW HOURS IN ASSOCIATION WITH STRONG
L0W-LEVEL WAA AND A 40-50 KT LLJ.  MUCAPE UP TO 1500 J/KG AND
EFFECTIVE BULK SHEAR ON THE ORDER OF 50 KT WILL BE FAVORABLE FOR
ORGANIZED SEVERE STORMS...INCLUDING SUPERCELLS.  THE PRIMARY SEVERE
THREAT SHOULD BE LARGE HAIL...THOUGH DAMAGING WINDS COULD OCCUR
LATER TONIGHT IF CONVECTION CAN MERGE INTO A LARGER CLUSTER AND
DEVELOP A WELL-DEFINED COLD POOL.

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 450. MEAN STORM
MOTION VECTOR 31030.


...THOMPSON


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