

691 

WWUS20 KWNS 051942

SEL0

SPC WW 051942

GAZ000-NCZ000-SCZ000-060300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 840

NWS STORM PREDICTION CENTER NORMAN OK

345 PM EDT MON SEP 5 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL GEORGIA

       WESTERN NORTH CAROLINA

       WESTERN SOUTH CAROLINA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1100 PM EDT.



TORNADOES...HAIL TO 1 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH OF COLUMBUS

GEORGIA TO 20 MILES NORTH NORTHEAST OF HICKORY 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 839. WATCH NUMBER 839 WILL NOT BE IN EFFECT AFTER

345 PM EDT. CONTINUE...WW 838...



DISCUSSION...TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND

INTENSITY THIS AFTERNOON INTO EVENING IN ADVANCE OF DEEP-LAYER

CYCLONE SLOWLY LIFTING NEWD THROUGH AL.  THE COMBINATION OF A

MOIST/LCL AIR MASS AND STRENGTHENING LOW- AND DEEP-LAYER SHEAR WILL

RESULT IN AN ENVIRONMENT SUPPORTIVE OF SUPERCELLS AND BOWING

STRUCTURES CAPABLE OF TORNADOES AND DAMAGING WINDS.



AVIATION...TORNADOES AND 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 500.

MEAN STORM MOTION VECTOR 21030.





...MEAD

