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WWUS20 KWNS 011812

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NCZ000-SCZ000-CWZ000-020200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 334

NWS STORM PREDICTION CENTER NORMAN OK

215 PM EDT FRI JUN 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN NORTH CAROLINA

       EASTERN SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

1000 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 110

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH

NORTHEAST OF ROCKY MOUNT NORTH CAROLINA TO 20 MILES SOUTH

SOUTHEAST OF CHARLESTON SOUTH CAROLINA.  FOR A COMPLETE DEPICTION

OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS

WOU4).



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 332...WW 333...



DISCUSSION...STRONG/SEVERE THUNDERSTORMS ARE INCREASING ACROSS THE

EASTERN CAROLINAS THIS AFTERNOON IN A VERY MOIST AND MODERATELY

UNSTABLE AIRMASS. THIS ACTIVITY SHOULD CONTINUE TO INCREASE IN

INTENSITY AS IT LOW LEVEL LAPSE RATES CONTINUE TO STEEPEN AND LARGE

SCALE ASCENT ASSOCIATED WITH AN APPROACHING UPPER TROUGH

STRENGTHENS. DEEP LAYER SHEAR ON THE ORDER OF 35KT SUGGESTS

ORGANIZED MULTI-CELL UPDRAFTS AND PERHAPS A FEW SUPERCELLS. BOTH

STORM MODES WILL SUPPORT SOME HAIL...AROUND 1 INCH IN DIAMETER...AND

LOCALIZED DAMAGING WINDS.



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 24035.





...CARBIN

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