WATCHES: Severe Thunderstorm Watch Number 107

WWUS20 KWNS 241904
SEL7
SPC WW 241904
VAZ000-WVZ000-250200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 107
NWS STORM PREDICTION CENTER NORMAN OK
305 PM EDT SAT MAR 24 2012

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

WESTERN VIRGINIA
SOUTHEAST WEST VIRGINIA

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 305 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 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH
NORTHWEST OF BECKLEY WEST VIRGINIA TO 20 MILES EAST SOUTHEAST OF
STAUNTON VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 104...WW 105...WW 106...

DISCUSSION...VIGOROUS TSTM DEVELOPMENT WAS OCCURRING NEAR A SURFACE
LOW AND INVERTED SURFACE TROUGH MOVING ACROSS THE APPALACHIANS THIS
AFTERNOON. MOIST AIRMASS AND SURFACE HEATING HAVE CONTRIBUTED TO
MODEST AIRMASS DESTABILIZATION AS LARGE UPPER LOW MOVES EAST FROM
KY/OH. STORM COVERAGE SHOULD BE FURTHER ENHANCED BY ASCENT
WITHIN/BENEATH EXIT REGION OF STRONG CYCLONICALLY CURVED UPPER JET
NOW MOVING INTO THE REGION. SHEAR WILL BE SUFFICIENT FOR STORM
PERSISTENCE AND ORGANIZATION WITH LARGE HAIL AND SOME DAMAGING WIND
EVENTS POSSIBLE INTO THE EARLY EVENING HOURS.

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 450. MEAN STORM
MOTION VECTOR 25030.

...CARBIN

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