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596 

WWUS20 KWNS 271606

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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