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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 890

NWS STORM PREDICTION CENTER NORMAN OK

440 AM EDT SAT SEP 6 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEASTERN MARYLAND

       EASTERN NORTH CAROLINA

       EASTERN VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 440 AM UNTIL

100 PM EDT.



TORNADOES...HAIL TO 0.5 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES EAST NORTHEAST OF

SALISBURY MARYLAND TO 25 MILES EAST SOUTHEAST OF NEW BERN NORTH

CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 889. WATCH NUMBER 889 WILL NOT BE IN EFFECT AFTER

440 AM EDT.



DISCUSSION...STORMS IN A DEVELOPING OUTER BAND...N-S THROUGH MHX AND

INTO THE ATLANTIC...HAVE BECOME MORE CELLULAR IN THE PAST HOUR. AS

THIS BAND SHIFTS NNWWD AHEAD OF HANNA/S CENTER...1KM SHEAR BETWEEN

300-500 M2/S2 COMBINED WITH SURFACE TEMPERATURES NEAR 80F AND SBCAPE

VALUES  AROUND 500 J/KG SHOULD BE FAVORABLE FOR FEW EMBEDDED

ROTATING STORMS...AND THE POTENTIAL FOR ISOLATED TORNADOES.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 16035.





...IMY

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