[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 220439
SEL8
SPC WW 220439
GAZ000-KYZ000-OHZ000-TNZ000-VAZ000-WVZ000-221100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 588
NWS STORM PREDICTION CENTER NORMAN OK
1140 PM EST SAT DEC 21 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  EXTREME NORTHWEST GEORGIA
  EASTERN KENTUCKY
  EXTREME SOUTH CENTRAL OHIO
  EASTERN TENNESSEE
  EXTREME WESTERN VIRGINIA
  WEST CENTRAL WEST VIRGINIA

* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1140 PM
  UNTIL 600 AM EST.

* PRIMARY THREATS INCLUDE...
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH
NORTHEAST OF HUNTINGTON WEST VIRGINIA TO 45 MILES SOUTH SOUTHWEST
OF CHATTANOOGA TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 584...WW 585...WW
586...WW 587...

DISCUSSION...SQUALL LINE WILL MOVE EWD FROM CENTRAL KY/MIDDLE TN TO
WRN WV/ERN KY/ERN TN OVERNIGHT.  THOUGH INSTABILITY WILL BECOME
QUITE MARGINAL WITH EWD EXTENT...STRONG LOW-MIDLEVEL WINDS MAY BE
TRANSPORTED TO THE GROUND WITHIN THE CONVECTIVE LINE.  THE SRN
PORTION OF THE LINE WILL CONTAIN THE DEEPER STORMS...BUT WILL ALSO
MOVE MORE SLOWLY TO THE E FROM NW AL TOWARD NW GA TOWARD THE END OF
THE WATCH.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
MOTION VECTOR 25045.


...THOMPSON

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