

000 

WWUS20 KWNS 101815

SEL4

SPC WW 101815

GAZ000-SCZ000-CWZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 294

NWS STORM PREDICTION CENTER NORMAN OK

210 PM EDT SAT MAY 10 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL GEORGIA

       SOUTHERN SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 210 PM UNTIL

900 PM EDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH OF LA GRANGE

GEORGIA TO 45 MILES NORTHEAST OF SAVANNAH GEORGIA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



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 292...WW 293...



DISCUSSION...INITIATION OF STORMS IS UNDERWAY...ROOTED WITHIN AN

MODERATE TO STRONGLY UNSTABLE BOUNDARY LAYER WITH CAPE IN EXCESS OF

2000 J/KG.  IN THE PRESENCE OF STRONG DEEP LAYER SHEAR...A FEW

SUPERCELLS ARE LIKELY THIS AFTERNOON...PERHAPS GROWING UPSCALE INTO

A LARGER STORM CLUSTER NEAR SOUTH ATLANTIC COASTAL AREAS LATE THIS

AFTERNOON/EARLY THIS EVENING...AIDED BY WEAK IMPULSE ROUNDING FLAT

SUBTROPICAL RIDGE.  DESPITE SOMEWHAT MARGINAL LOW-LEVEL

HODOGRAPHS...THE BOUNDARY LAYER APPEARS SUPPORTIVE OF ISOLATED

TORNADOES...IN ADDITION TO THE RISK FOR LARGE HAIL/DAMAGING WIND

GUSTS.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 28035.





...KERR

