

000 

WWUS20 KWNS 312102

SEL4

SPC WW 312102

NCZ000-SCZ000-CWZ000-010200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 784

NWS STORM PREDICTION CENTER NORMAN OK

505 PM EDT THU JUL 31 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN NORTH CAROLINA

       EXTREME NORTHEAST SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 505 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 45

STATUTE MILES EITHER SIDE OF A LINE FROM 50 MILES SOUTH SOUTHWEST

OF FAYETTEVILLE NORTH CAROLINA TO 40 MILES NORTH OF CAPE HATTERAS

NORTH 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 782...WW 783...



DISCUSSION...MULTICELL STORM CLUSTERS WILL LIKELY CONTINUE TO SPREAD

EWD ACROSS THE COASTAL PLAIN OF ERN NC AND NE SC.  STRONG

INSTABILITY AND STORM MERGERS WILL SUPPORT A THREAT FOR DAMAGING

DOWNBURSTS AND MARGINALLY SEVERE HAIL...WITH THE MORE ORGANIZED

STORMS EXPECTED ACROSS NC IN PROXIMITY TO THE STRONGER MID LEVEL

FLOW.



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 550. MEAN STORM

MOTION VECTOR 27020.





...THOMPSON

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