Alert archive / South Carolina / Tornado Warnings in 2003

Tornado Warning 2, NWS Greenville-Spartanburg, SC

April 21, 2003Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Apr 21, 2003, 6:05 PM EDT for Greenwood County, South Carolina. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 21, 2003, 6:05 PM EDT (22:05 UTC)
Expired
Apr 21, 2003, 6:45 PM EDT
In force
40 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Greenwood County, SC

The radar

The Greer radar (KGSP), 91 km from the middle of the area, began a volume at 22:05 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.1 hours before the alert went out and 229 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 102 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2003-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
102 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

767 
WFUS52 KGSP 212205
TORGSP
SCC047-212245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
605 PM EDT MON APR 21 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN GREENWOOD COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 645 PM EDT.

* AT 602 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A
  THUNDERSTORM WITH A DEVELOPING TORNADO 6 MILES SOUTH OF
  ABBEVILLE...OR ABOUT 9 MILES WEST OF VERDERY...MOVING EAST AT 25
  MPH.

* THE TORNADO WILL BE NEAR...
  VERDERY AT 615 PM EDT.
  CALLISON AT 630 PM EDT.

TORNADOES IN THE SOUTHEASTERN STATES ARE SOMETIMES HARD TO SEE
BECAUSE OF RAIN...LOW CLOUDS AND TREES. TAKE COVER NOW...DO NOT TRY
TO WAIT ON THE STORM AND DO NOT TRY TO OUTRUN IT.

LAT...LON 3417 8230 3399 8237 3388 8199 3410 8190

$$
MCAVOY

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 5:05 PM EDTSevere Thunderstorm WarningGSPAbbeville, Anderson40 min
Apr 21, 5:45 PM EDTTornado WarningGSPAbbeville45 min
Apr 21, 5:57 PM EDTFlash Flood WarningGSPAbbeville3 hr

Nearby

Tornado Warnings in South Carolina, 2003Every tornado warning in 2003Tornadoes in 2003

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; radar from the NEXRAD Level II archive.