WATCHES: Severe Thunderstorm Watch Number 585

WWUS20 KWNS 191437
SEL5
SPC WW 191437
GAZ000-NCZ000-SCZ000-VAZ000-CWZ000-192200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 585
NWS STORM PREDICTION CENTER NORMAN OK
1035 AM EDT SUN AUG 19 2012

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

FAR EASTERN GEORGIA
EASTERN NORTH CAROLINA
EASTERN SOUTH CAROLINA
FAR SOUTHEAST VIRGINIA
COASTAL WATERS

EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 1035 AM UNTIL 600
PM EDT.

HAIL TO 1 INCH 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 45
STATUTE MILES EITHER SIDE OF A LINE FROM 35 MILES EAST NORTHEAST
OF ELIZABETH CITY NORTH CAROLINA TO 50 MILES SOUTHWEST OF
SAVANNAH GEORGIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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...BROKEN BAND OF TSTMS ONGOING FROM ENE RZZ TO WNW OF SAV
IS EXPECTED TO INTENSIFY LATE THIS MORNING INTO AFTERNOON OWING TO
THE INFLUX OF A WARM...MOIST AIR MASS WHERE MLCAPE HAS INCREASED TO
1000-2000 J/KG. VERTICAL SHEAR SHOULD ALSO STEADILY INCREASE TODAY
AS REGION IS GLANCED BY A SERIES OF MIDLEVEL PERTURBATIONS
TRANSLATING NEWD ALONG THE APPALACHIANS. AS SUCH...SETUP WILL
BECOME INCREASINGLY SUPPORTIVE OF A FEW SUPERCELLS AND BOWING
STRUCTURES CAPABLE OF MAINLY DAMAGING WIND GUSTS. A BRIEF TORNADO
IS ALSO POSSIBLE OVER FAR SERN VA/NERN NC WHERE LOCALLY BACKED
NEAR-SURFACE WINDS ARE ENHANCING LOW-LEVEL SHEAR.

AVIATION...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 24025.


...MEAD

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