WATCHES: Tornado Watch Number 69

WWUS20 KWNS 082312
SEL9
SPC WW 082312
NCZ000-VAZ000-090400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 69
NWS STORM PREDICTION CENTER NORMAN OK
715 PM EDT THU APR 8 2010

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

WESTERN NORTH CAROLINA
SOUTHWEST INTO PART OF CENTRAL VIRGINIA

EFFECTIVE THIS THURSDAY NIGHT FROM 715 PM UNTIL MIDNIGHT EDT.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES EAST SOUTHEAST OF
CHARLOTTE NORTH CAROLINA TO 40 MILES EAST NORTHEAST OF LYNCHBURG
VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 66...WW 67...WW 68...

DISCUSSION...NARROW AXIS OF GREATER SURFACE MOISTURE HAS PERSISTED
OVER WRN NC/SWRN VA TO THE WEST OF THE GREATER BOUNDARY LAYER MIXING
WHICH OCCURRED OVER CENTRAL NC THIS AFTERNOON AND AHEAD OF SURFACE
COLD FRONT NOW MOVING EWD ACROSS THE APPALACHIANS. THIS SHOULD
SUSTAIN A RISK OF LOW-TOPPED SUPERCELLS AND POSSIBLE TORNADOES/WIND
DAMAGE THROUGH THE EVENING. SHOULD SURFACE DEW POINTS INCREASE OFF
THE ATLANTIC THROUGH THE EVENING AS LLJ STRENGTHENS EAST OF
WW...THREAT COULD SPREAD EWD INTO MORE OF CENTRAL NC/VA LATER THIS
EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 24035.

...EVANS

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