WATCHES: Severe Thunderstorm Watch Number 833

WWUS20 KWNS 151719
SEL3
SPC WW 151719
MDZ000-NCZ000-VAZ000-CWZ000-160100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 833
NWS STORM PREDICTION CENTER NORMAN OK
120 PM EDT FRI AUG 15 2008

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

SOUTHEAST MARYLAND
WESTERN AND CENTRAL NORTH CAROLINA
CENTRAL AND SOUTHEAST VIRGINIA
COASTAL WATERS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 120 PM UNTIL 900
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 90
STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES WEST SOUTHWEST
OF CHARLOTTE NORTH CAROLINA TO 10 MILES NORTH OF SALISBURY
MARYLAND. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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.

DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO INCREASE IN
COVERAGE AND INTENSITY THIS AFTERNOON ACROSS PARTS OF NC/VA/MD WHERE
MODERATE INSTABILITY AND STRONG HEATING ARE PRESENT. DESPITE WEAK
MID LEVEL LAPSE RATES...FAVORABLE DEEP LAYER VERTICAL SHEAR AND LOW
LEVEL THERMODYNAMICS WILL POSE A THREAT OF ISOLATED SEVERE STORMS
CAPABLE OF DAMAGING WINDS AND PERHAPS HAIL.

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 26025.

...HART

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