Alert archive / South Carolina / Tornado Watches in 2000

Tornado Watch 751

September 23, 20005 counties in Georgia; 13 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Sep 23, 2000, 12:00 AM EDT for 5 counties in Georgia; 13 counties in South Carolina. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Sep 23, 2000, 12:00 AM EDT (04:00 UTC)
Expired
Sep 23, 2000, 4:00 AM EDT
In force
4 hr
Issued by
the Storm Prediction Center

Counties Bulloch County, GA, Chatham County, GA, Effingham County, GA, Jenkins County, GA, Screven County, GA, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC, Orangeburg County, SC, Sumter County, SC

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Sep 23, 12:05 AM EDTTornado WarningCAEBarnwell40 min
Sep 23, 12:23 AM EDTTornado WarningCHSAllendale37 min
Sep 23, 12:41 AM EDTTornado WarningCAEBarnwell34 min
Sep 23, 1:10 AM EDTTornado WarningCAEBamberg35 min
Sep 23, 1:13 AM EDTFlash Flood WarningCAEBarnwell4 hr
Sep 23, 1:44 AM EDTTornado WarningCAEBamberg31 min
Sep 23, 2:07 AM EDTFlash Flood WarningCAEBamberg4 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 4.0 hours before the alert went out and 105 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2000-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1102 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2000-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1102 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

593 
WWUS9 KMKC 230401
SEL1  

SEL1  
MKC WW 230354
GAZ000-SCZ000-230800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 751
STORM PREDICTION CENTER NORMAN OK
1154 PM EDT FRI SEP 22 2000

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

   EASTERN GEORGIA                            
   CENTRAL AND SOUTHERN SOUTH CAROLINA                     

EFFECTIVE THIS SATURDAY MORNING FROM MIDNIGHT EDT UNTIL 400 AM EDT.

TORNADOES...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS
LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 45 STATUTE MILES EITHER SIDE OF
A LINE FROM 105 MILES WEST SOUTHWEST OF CHARLESTON SOUTH CAROLINA
TO 55 MILES NORTH OF CHARLESTON 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...  CONTINUE...WW 749...WW 750...

DISCUSSION...THUNDERSTORMS HAVE INCREASED IN THE PAST HOUR INVOF
CIRCULATION CENTER ASSOCIATED WITH FORMER T.S. HELENE.  AREA VWP
DATA SHOW AMPLE LOW-LEVEL VEERING THAT...COUPLED WITH VERY MOIST
LOWER TROPOSPHERE AND EXISTING LOW-LEVEL VORTICITY CENTER...SUGGEST
CONTINUED POTENTIAL FOR LOW-LEVEL STORM ROTATION AND POSSIBLE
TORNADOES.    

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS.  A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 500.  MEAN STORM MOTION VECTOR 24020.

...CORFIDI

331,0793 315,0812 330,0821 341,0802

Nearby

Tornado Watches in South Carolina, 2000Tornado Watches in Georgia, 2000Every tornado watch in 2000

Sources

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.