[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 100056
SEL0
SPC WW 100056
NCZ000-SCZ000-TNZ000-100500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 290
NWS STORM PREDICTION CENTER NORMAN OK
855 PM EDT FRI MAY 9 2008

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

       WESTERN NORTH CAROLINA
       FAR NORTHWESTERN SOUTH CAROLINA
       EASTERN TENNESSEE

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 855 PM
UNTIL 100 AM EDT.

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 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH OF
CROSSVILLE TENNESSEE TO 15 MILES NORTHEAST OF CHARLOTTE NORTH
CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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.

OTHER WATCH INFORMATION...CONTINUE...WW 287...WW 288...WW 289...

DISCUSSION...ASCENT FROM SHORTWAVE TROUGH MOVING ACROSS THE
APPALACHIANS AND SURFACE HEATING HAS SUPPORTING INCREASE IN
THUNDERSTORMS OVER ERN TN THIS EVENING.  AREA REMAINS UNDER FAIRLY
STRONG WNWLY FLOW ALOFT AND RELATIVELY COLD MID LEVEL AIR MASS.
THIS SHOULD SUSTAIN A FEW ORGANIZED STORMS...INCLUDING
SUPERCELLS...EWD ACROSS WW THROUGH THE REST OF THE EVENING.  LARGE
HAIL WILL BE PRIMARY SEVERE THREAT...ALTHOUGH ISOLATED DAMAGING
WINDS ARE ALSO LIKELY WITH THE STRONGER CORES.

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 450. MEAN STORM
MOTION VECTOR 28035.


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