Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 71, NWS Columbia, SC

May 6, 2003Calhoun County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 6, 2003, 5:14 PM EDT for Calhoun County, South Carolina. It was in force for 46 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: May 6, 2003, 5:14 PM EDT (21:14 UTC)
Expired: May 6, 2003, 6:00 PM EDT
In force: 46 min
Issued by: NWS Columbia, SC
Area: Counties, with a storm outline in the text

County Calhoun County, SC

The watch it was issued in

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

Issued	Product	Office	Lasted
May 6, 2:40 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.2 hours before the alert went out and 118 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: 870 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KCAE 062114
SVRCAE
SCC017-062200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
514 PM EDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
    CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 600 PM EDT.

* AT 508 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES WEST OF ST. MATTHEWS..MOVING NORTHEAST
  AT 20 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
    ST. MATTHEWS.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. REMEMBER...SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED
WARNING.

THIS STORM WILL PRODUCE DAMAGING WINDS IN EXCESS OF 55 MPH AND DIME
SIZE HAIL.

LAT...LON 3372 8106 3364 8091 3358 8064 3371 8065

SJN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 1:23 AM EDT	Tornado Warning	CAE	Edgefield	22 min
May 6, 1:32 AM EDT	Tornado Warning	CAE	Saluda	28 min
May 6, 2:01 AM EDT	Flash Flood Warning	CAE	Edgefield, McCormick, Saluda	4 hr
May 6, 2:09 AM EDT	Tornado Warning	CAE	Lexington	36 min
May 6, 2:26 AM EDT	Tornado Warning	CAE	Aiken	49 min
May 6, 2:47 AM EDT	Severe Thunderstorm Warning	CAE	Lexington	43 min
May 6, 2:55 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	50 min
May 6, 3:18 PM EDT	Tornado Warning	CAE	McCormick	27 min
May 6, 3:30 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, Saluda	45 min
May 6, 3:57 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	48 min
May 6, 4:11 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Lexington	49 min
May 6, 4:14 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield	46 min
May 6, 4:29 PM EDT	Severe Thunderstorm Warning	CAE	Richland	46 min
May 6, 4:33 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	42 min
May 6, 4:59 PM EDT	Severe Thunderstorm Warning	CAE	Lee, Sumter	46 min
May 6, 5:18 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	27 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2003 Every severe thunderstorm warning 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.