WATCHES: Severe Thunderstorm Watch Number 129

WWUS20 KWNS 120455
SEL9
SPC WW 120455
NCZ000-SCZ000-VAZ000-121200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 129
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM EDT THU APR 12 2007

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

MUCH OF CENTRAL AND EASTERN NORTH CAROLINA
PARTS OF NORTHEASTERN SOUTH CAROLINA
PARTS OF SOUTHERN VIRGINIA

EFFECTIVE THIS THURSDAY MORNING FROM 1255 AM UNTIL 800 AM EDT.

HAIL TO 2 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 65
STATUTE MILES EITHER SIDE OF A LINE FROM 60 MILES NORTHWEST OF
FLORENCE SOUTH CAROLINA TO 40 MILES NORTHEAST OF ROANOKE RAPIDS
NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 128...

DISCUSSION...STORMS WILL INCREASE IN NUMBER AND INTENSITY ACROSS
WATCH AS VERY STRONG WIND PROFILES ROTATE THRU AREA ALONG WITH
INCREASING WARM ADVECTION AND MID LEVEL INSTABILITY. PRIMARILY
ELEVATED STORMS WITH LARGE HAIL POTENTIAL...HOWEVER STORMS COULD
BECOME NEAR SURFACE BASED WITH TIME INCREASING THREAT OF WIND DAMAGE
AND SUPERCELLS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM
MOTION VECTOR 23045.

..HALES

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