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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 791

NWS STORM PREDICTION CENTER NORMAN OK

700 PM EST WED DEC 2 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN AND CENTRAL NORTH CAROLINA

       EASTERN SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 700 PM

UNTIL 400 AM EST.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



DESTRUCTIVE TORNADOES...LARGE HAIL TO 1 INCH IN DIAMETER...

THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE

POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES EITHER SIDE OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF

FLORENCE SOUTH CAROLINA TO 55 MILES EAST SOUTHEAST OF ELIZABETH

CITY NORTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 789...WW 790...



DISCUSSION...BOUNDARY LAYER WARMING/MOISTENING EXPECTED TO CONTINUE

THIS EVE/EARLY THU OVER THE NC CSTL PLN...AHEAD OF BROKEN BAND OF

SHOWERS/TSTMS NOW EXTENDING FROM W OF FLO SSW TO NEAR SAV.  GIVEN

DESTABILIZING LOW LVL ENVIRONMENT...THE CONVECTION MAY INCREASE OVER

FAR ERN SC AND ERN NC LATER THIS EVE/EARLY THU AS REGION IS GLANCED

BY WAVE OF ASCENT/DPVA ASSOCIATED WITH ERN TN SHORTWAVE TROUGH.

VERY STRONG AND VEERING WIND PROFILES AND ABSENCE OF STRONG LINEAR

FORCING SUGGEST POTENTIAL FOR SEMI-DISCRETE STORMS WITH LOW LVL

ROTATION...AND POSSIBLY A COUPLE STRONG TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.

MEAN STORM MOTION VECTOR 22050.





...CORFIDI

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