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566 

WWUS20 KWNS 082232

SEL2

SPC WW 082232

NCZ000-090300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 672

NWS STORM PREDICTION CENTER NORMAN OK

630 PM EDT TUE JUL 8 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL NORTH CAROLINA



EFFECTIVE THIS TUESDAY EVENING FROM 630 PM UNTIL 1100 PM EDT.



HAIL TO 2 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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH

NORTHWEST OF RALEIGH NORTH CAROLINA TO 25 MILES WEST SOUTHWEST OF

FAYETTEVILLE NORTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE

WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 668...WW 669...WW

670...WW 671...



DISCUSSION...A CLUSTER OF SEVERE STORMS WILL LIKELY PERSIST AND

SPREAD EWD FROM THE FOOTHILLS INTO THE PIEDMONT THIS EVENING IN

RESPONSE TO A CORRIDOR OF STRONG INSTABILITY THAT REMAINS IN THE

WAKE OF EARLIER CONVECTION TO THE EAST.  RELATIVELY STEEP LAPSE

RATES AND MODEST VERTICAL SHEAR WITH NWLY MID LEVEL FLOW WILL

SUPPORT ORGANIZED MULTICELL CLUSTERS...AND POSSIBLY SOME SUPERCELL

STRUCTURES.  THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING LARGE

HAIL AND DAMAGING WINDS INTO EARLY TONIGHT.



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 27025.





...THOMPSON

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