

000 

WWUS20 KWNS 200034

SEL9

SPC WW 200034

VAZ000-CWZ000-200600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 619

NWS STORM PREDICTION CENTER NORMAN OK

835 PM EDT SUN AUG 19 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEASTERN VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 835 PM UNTIL

200 AM 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 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST OF

RICHMOND VIRGINIA TO 50 MILES NORTHEAST OF NORFOLK VIRGINIA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 617...WW 618...



DISCUSSION...TSTMS DEVELOPING ALONG SHALLOW WNW/ESE-ORIENTED

STATIONARY FRONT MAY POSE A THREAT FOR HAIL AND POSSIBLY WET

MICROBURSTS AS WAA FOCUSES OVER REGION THROUGH LATE EVENING /REF MD

1808/.  MODERATELY STRONG WITH FIELD WITH MODERATE VEERING IN THE

VERTICAL SUGGESTS POTENTIAL FOR A FEW SUSTAINED STORMS/POSSIBLE

SUPERCELLS.



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 28025.





...CORFIDI

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