Alert archive / South Carolina / Tornado Warnings in 2003

Tornado Warning 11, NWS Columbia, SC

July 2, 2003Clarendon County, South Carolina

NWS Columbia, SC issued this tornado warning at Jul 2, 2003, 2:43 AM EDT for Clarendon County, South Carolina. It was in force for 47 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: Jul 2, 2003, 2:43 AM EDT (06:43 UTC)
Expired: Jul 2, 2003, 3:30 AM EDT
In force: 47 min
Issued by: NWS Columbia, SC
Area: Counties, with a storm outline in the text

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 99 km from the middle of the area, began a volume at 06:45 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 1, 9:55 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 6.7 hours before the alert went out and 99 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 257 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 769 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

005 
WFUS52 KCAE 020643
TORCAE
SCC027-020730-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
243 AM EDT WED JUL 2 2003

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
    NORTHEASTERN CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 330 AM EDT.

* AT 235 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A DEVELOPING TORNADO 6 MILES SOUTHEAST OF
  MANNING..MOVING NORTHEAST AT 20 MPH.


GO TO A BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR.

LAT...LON 3375 8034 3355 8009 3385 7967 3403 7988

AWP

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 1, 10:38 PM EDT	Flash Flood Warning	CAE	Barnwell, Orangeburg	2 hr
Jul 1, 10:59 PM EDT	Tornado Warning	CAE	Barnwell	31 min
Jul 2, 12:49 AM EDT	Severe Thunderstorm Warning	CAE	Richland	41 min
Jul 2, 12:52 AM EDT	Tornado Warning	CAE	Orangeburg	38 min
Jul 2, 1:40 AM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Sumter	50 min
Jul 2, 1:47 AM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Orangeburg	43 min
Jul 2, 2:36 AM EDT	Severe Thunderstorm Warning	CAE	Clarendon	39 min
Jul 2, 7:10 AM EDT	Flash Flood Warning	CAE	Lee	3 hr

Nearby

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