

603 

WWUS20 KWNS 251226

SEL4

SPC WW 251226

GAZ000-NCZ000-SCZ000-VAZ000-WVZ000-251700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 714

NWS STORM PREDICTION CENTER NORMAN OK

825 AM EDT MON OCT 25 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL GEORGIA

       WESTERN NORTH CAROLINA

       WESTERN AND CENTRAL SOUTH CAROLINA

       SOUTHWEST VIRGINIA

       EXTREME SOUTHERN WEST VIRGINIA



EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 825 AM UNTIL 100

PM EDT.



HAIL TO 1 INCH 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 70

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

NORTHEAST OF DUBLIN VIRGINIA TO 20 MILES WEST SOUTHWEST OF

COLUMBIA SOUTH 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 711...WW 712...WW 713...



DISCUSSION...PERSISTENT/ORGANIZED LINE OF THUNDERSTORMS CONTINUES

MOVING EWD ACROSS THE SRN APPALACHIANS ATTM...INTO MARGINALLY

UNSTABLE BUT STRONGLY SHEARED ENVIRONMENT.  WITH CONTINUED MID-LEVEL

COOLING AND LARGE-SCALE ASCENT OVERSPREADING THE AREA AHEAD OF A

STRONG VORT MAX CROSSING THE TN VALLEY REGION...EXPECT STORMS TO

CONTINUE MOVING RAPIDLY EWD -- POSING A THREAT FOR ISOLATED DAMAGING

WINDS THROUGH MIDDAY.



AVIATION...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 26040.





...GOSS

