WATCHES: Severe Thunderstorm Watch Number 486

WWUS20 KWNS 042059
SEL6
SPC WW 042059
NCZ000-VAZ000-WVZ000-050200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 486
NWS STORM PREDICTION CENTER NORMAN OK
500 PM EDT WED JUL 4 2007

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

A SMALL PART OF NORTHERN NORTH CAROLINA
CENTRAL AND SOUTHERN VIRGINIA
SOUTHEASTERN WEST VIRGINIA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 500 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 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH
SOUTHWEST OF BLUEFIELD WEST VIRGINIA TO 45 MILES EAST SOUTHEAST
OF CHARLOTTESVILLE VIRGINIA. FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

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 482...WW 483...WW
484...WW 485...

DISCUSSION...WIDELY SCTD STORMS/POSSIBLE SUPERCELLS EXPECTED TO
PERSIST/DEVELOP IN MODERATELY SHEARED LOW LVL THERMAL AXIS ON SRN
FRINGE OF DIFFLUENT SHORTWAVE TROUGH. SUPERCELLULAR NATURE OF
UPDRAFTS MAY LENGTHEN STORM LIFETIMES AND ENHANCE THREAT FOR
HAIL/WIND AND PERHAPS AN ISOLATED TORNADO.

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 30030.

..CORFIDI

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