WATCHES: Tornado Watch Number 934

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URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 934
NWS STORM PREDICTION CENTER NORMAN OK
1225 PM EST SAT NOV 15 2008

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

DISTRICT OF COLUMBIA
DELAWARE
MUCH OF MARYLAND
ALL BUT NORTHERN NEW JERSEY
PARTS OF SOUTHEASTERN PENNSYLVANIA
MUCH OF EASTERN VIRGINIA
COASTAL WATERS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1225 PM UNTIL
700 PM EST.

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 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES WEST NORTHWEST OF
TRENTON NEW JERSEY TO 20 MILES EAST SOUTHEAST OF SOUTH HILL
VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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.

DISCUSSION...VERY STRONG UPPER TROUGH AND ASSOCIATED WIND FIELDS
APPROACHING MID ATLANTIC STATES WHERE AIR MASS HAS CONTINUED TO WARM
AND DESTABILIZE THIS AM. THUNDERSTORMS EXPECTED TO DEVELOP
ALONG/AHEAD OF COLD FRONT NOW MOVING E OF APPALACHIANS IN THE FORM
OF A SQUALL LINE. IN ADDITION TO WIND DAMAGE...EMBEDDED SUPERCELLS
ARE POSSIBLE WITH TORNADO POTENTIAL. ACTIVITY EXPECTED TO SPREAD
NEWD ACROSS THE WATCH AREA DURING THE AFTERNOON.

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 450.
MEAN STORM MOTION VECTOR 23045.

...HALES

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