WATCHES: Tornado Watch Number 149

WWUS20 KWNS 151641
SEL9
SPC WW 151641
NCZ000-VAZ000-CWZ000-160000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 149
NWS STORM PREDICTION CENTER NORMAN OK
1240 PM EDT SUN APR 15 2007

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

NORTHERN AND CENTRAL NORTH CAROLINA
SOUTHEAST VIRGINIA
COASTAL WATERS

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL
800 PM EDT.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES EAST OF NORFOLK
VIRGINIA TO 20 MILES SOUTH OF HICKORY NORTH CAROLINA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU9).

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.

OTHER WATCH INFORMATION...CONTINUE...WW 147...WW 148...

DISCUSSION...LINE OF THUNDERSTORMS OVER CENTRAL NC WILL TRACK
EASTWARD TOWARD THE COAST EARLY THIS AFTERNOON...WHILE NEW STORMS
INTENSIFY OVER WESTERN NC. THESE STORMS WILL SPREAD NORTHEASTWARD
ALONG AND SOUTH OF WARM FRONT ACROSS NORTHERN NC AND SOUTHEAST VA.
PRIMARY RISK SHOULD BE DAMAGING WINDS AND HAIL DUE TO STEEPENING MID
LEVEL LAPSE RATES AND STRONG DEEP LAYER SHEAR. HOWEVER...PROXIMITY
TO RAPIDLY DEEPENING SURFACE LOW AND INCREASING DEWPOINT VALUES MAY
BE SUFFICIENT TO OFFSET VEERING LOW LEVEL WINDS TO LOCALLY ENHANCE
TORNADO RISK AS WELL.

AVIATION...TORNADOES AND 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 24040.

..HART

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