

431 

WWUS20 KWNS 090504

SEL9

SPC WW 090504

VAZ000-CWZ000-091000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 279

NWS STORM PREDICTION CENTER NORMAN OK

105 AM EDT SAT MAY 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING FROM 105 AM UNTIL 600 AM EDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH OF RICHMOND

VIRGINIA TO 45 MILES EAST SOUTHEAST OF SOUTH HILL VIRGINIA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 273...WW 274...WW

276...WW 277...WW 278...



DISCUSSION...TSTMS ASSOCIATED WITH CURRENT OF ENHANCED WSW FLOW ON S

SIDE OF EARLIER MCV HAVE MOVED E OF THE SW VA MOUNTAINS.  ACTIVITY

WILL ENCOUNTER INCREASINGLY MOIST LOW LVL INFLOW ACROSS THE ERN

PIEDMONT AND CSTL PLN.  SETUP MAY SUPPORT ADDITIONAL SUSTAINED

STORMS AND POSSIBLE TORNADOES THROUGH LATER THIS MORNING.



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

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

GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.

MEAN STORM MOTION VECTOR 27040.





...CORFIDI

