SEL7
SPC WW 271606
NCZ000-SCZ000-VAZ000-272300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 387
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM EDT FRI MAY 27 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL NORTH CAROLINA
CENTRAL SOUTH CAROLINA
SOUTHERN VIRGINIA
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1210 PM UNTIL
700 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHWEST OF
RICHMOND VIRGINIA TO 45 MILES EAST SOUTHEAST OF ORANGEBURG SOUTH
CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
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 INCREASING OVER PORTIONS OF
SC/NC IN AXIS OF MODERATE INSTABILITY AND SUFFICIENT FLOW ALOFT.
ACTIVITY SHOULD CONTINUE TO STRENGTHEN THROUGH THE AFTERNOON AND
SPREAD NORTHWARD ACROSS THE WATCH AREA. LOCALLY DAMAGING WINDS ARE
THE MAIN THREAT...ALTHOUGH LARGE HAIL WILL ALSO BE POSSIBLE IN THE
STRONGEST STORMS.
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 21025.
...HART
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