Tornado Watch 811

Issued

Sep 7, 2004, 6:40 PM EDT (22:40 UTC)

Expired

Sep 8, 2004, 1:00 AM EDT

In force

6 hr

Issued by

the Storm Prediction Center

The Columbia radar (KCAE), 32 km from the middle of the area, began a volume at 22:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 2184Sep 7, 3:19 PM EDT
• Mesoscale Discussion 2185Sep 7, 6:07 PM EDT
• Mesoscale Discussion 2186Sep 7, 10:09 PM EDT

000 
WWUS20 KWNS 072239
SEL1  
SPC WW 072240
GAZ000-NCZ000-SCZ000-CWZ000-080500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 811
NWS STORM PREDICTION CENTER NORMAN OK
640 PM EDT TUE SEP 7 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       EASTERN GEORGIA
       SOUTHERN NORTH CAROLINA
       MUCH OF SOUTH CAROLINA
       COASTAL WATERS

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 640 PM
UNTIL 100 AM EDT.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 130 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 45 MILES NORTHWEST OF AUGUSTA GEORGIA TO 45
MILES EAST SOUTHEAST OF MYRTLE BEACH SOUTH CAROLINA.

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 809...TORNADO WATCH NUMBER 810. WATCH NUMBER 809 810
WILL NOT BE IN EFFECT AFTER 640 PM EDT. 

DISCUSSION...SCATTERED SMALL SUPERCELL THUNDERSTORMS CONTINUE FROM
EASTERN GA INTO SC AND SOUTHERN NC...ALONG AND NORTH OF SURFACE
BAROCLINIC ZONE.  VERY STRONG LOW LEVEL VERTICAL SHEAR PROFILES WILL
MAINTAIN A RISK OF TORNADOES WITH STRONGER CIRCULATIONS FOR ANOTHER
SEVERAL HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 18030.


...HART

354,0823 351,0781 313,0781 315,0823

Tornado Watches in South Carolina, 2004Tornado Watches in North Carolina, 2004Tornado Watches in Georgia, 2004Every tornado watch in 2004

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.