WATCHES: Severe Thunderstorm Watch Number 502

WWUS20 KWNS 181937
SEL2
SPC WW 181937
NCZ000-VAZ000-190000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 502
NWS STORM PREDICTION CENTER NORMAN OK
335 PM EDT SAT JUN 18 2011

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

CENTRAL NORTH CAROLINA
SOUTHWESTERN AND SOUTH CENTRAL VIRGINIA

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 335 PM UNTIL
800 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 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF
HICKORY NORTH CAROLINA TO 20 MILES NORTHEAST OF RALEIGH NORTH
CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 499...WW 500...WW 501...

DISCUSSION...SQUALL LINE WILL CONTINUE EWD THROUGH SRN VA AND CNTRL
NC WHERE THE ATMOSPHERE IS MODERATELY UNSTABLE. WEAK VERTICAL SHEAR
WILL SUPPORT MULTICELL STORMS. STEEPENING LOW LEVEL LAPSE RATES AND
LINEAR NATURE OF THE CONVECTION WILL CONTRIBUTE TO A THREAT OF
ISOLATED DAMAGING WIND AND POSSIBLY SOME HAIL AS ACTIVITY CONTINUES
EWD.

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 27035.

...DIAL

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