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WWUS20 KWNS 101734

SEL0

SPC WW 101734

NCZ000-SCZ000-VAZ000-CWZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 410

NWS STORM PREDICTION CENTER NORMAN OK

135 PM EDT THU JUL 10 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CENTRAL AND EASTERN NORTH CAROLINA

  NORTHEAST SOUTH CAROLINA

  SOUTHEAST VIRGINIA

  COASTAL WATERS



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 135 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EITHER SIDE OF A LINE FROM 30 MILES EAST OF NORFOLK

VIRGINIA TO 10 MILES SOUTH SOUTHWEST OF FLORENCE SOUTH CAROLINA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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...STORMS ARE CONTINUING TO DEVELOP AND INTENSIFY AHEAD OF

SURFACE WIND SHIFT FROM THE CENTRAL CAROLINAS INTO SERN VA.  THE AIR

MASS IS UNDERGOING STRONG DIABATIC HEATING/DESTABILIZATION WITH

MLCAPE TO 2500 J/KG.  THE REGION IS ALONG THE SERN EDGE OF STRONGER

FLOW ALOFT WITH SUFFICIENT VERTICAL SHEAR /20-30 KT/ TO PROMOTE

ORGANIZED MULTICELL STORM STRUCTURES.  DAMAGING WIND GUSTS AND

OCCASIONAL HAIL WILL ACCOMPANY THE STRONGEST CELLS AS THEY MOVE NEWD

20 KT THROUGH THIS EVENING.



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 500. MEAN STORM

MOTION VECTOR 24020.





...WEISS

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