[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 241911
SEL8
SPC WW 241911
MDZ000-NCZ000-TNZ000-VAZ000-WVZ000-CWZ000-250200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 408
NWS STORM PREDICTION CENTER NORMAN OK
310 PM EDT THU JUN 24 2010

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

       SOUTHERN MARYLAND
       FAR NORTHWEST NORTH CAROLINA
       FAR NORTHEAST TENNESSEE
       CENTRAL...SOUTH CENTRAL...AND SOUTHWEST VIRGINIA
       FAR SOUTHERN WEST VIRGINIA
       COASTAL WATERS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 310 PM UNTIL
1000 PM 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 165
STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF
RICHMOND VIRGINIA TO 10 MILES WEST SOUTHWEST OF BRISTOL
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

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 404...WW 405...WW
406...WW 407...

DISCUSSION...STRONG/SVR COLD FRONTAL TSTMS NOW OVER THE WV MOUNTAINS
EXPECTED TO MOVE/DEVELOP GENERALLY ESE THROUGH AT LEAST EARLY EVE.
WHILE DEEP WNWLY SHEAR DIMINISHES WITH SWD EXTENT...WEAKLY
CONVERGENT PRE-FRONTAL FLOW...PRESENCE OF TCU OVER AND E OF THE
MOUNTAINS ...AND STEEP LOW LVL LAPSE RATE ENVIRONMENT E OF THE
MOUNTAINS SUGGEST POTENTIAL FOR DMGG WIND GUSTS AND PERHAPS
MARGINALLY SVR HAIL.

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 29030.


...CORFIDI
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