

489 

WWUS20 KWNS 282204

SEL4

SPC WW 282204

GAZ000-NCZ000-SCZ000-010300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 34

NWS STORM PREDICTION CENTER NORMAN OK

505 PM EST MON FEB 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL GEORGIA

       CENTRAL NORTH CAROLINA

       CENTRAL SOUTH CAROLINA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1000 PM EST.



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 45 MILES NORTH

NORTHEAST OF RALEIGH NORTH CAROLINA TO 15 MILES WEST OF MACON

GEORGIA.  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 33...



DISCUSSION...SQUALL LINE WILL CONTINUE MOVING EWD/SEWD ACROSS

NC/SC/GA IMMEDIATELY IN ADVANCE OF THE COLD FRONT.  INSTABILITY

GRADUALLY WEAKENS INTO THE CENTRAL CAROLINAS WHERE DEWPOINTS HAVE

MIXED WELL DOWN INTO THE 50S...BUT STEEP LOW-LEVEL LAPSE RATES AND

50-60 KT FLOW WITHIN 2 KM OF THE GROUND WILL STILL SUPPORT A

DAMAGING WIND THREAT FOR A FEW MORE HOURS.



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 28040.





...THOMPSON

