Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 94, NWS Columbia, SC

June 4, 1998Clarendon County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 4, 1998, 3:30 PM EDT for Clarendon County, South Carolina. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 4, 1998, 3:30 PM EDT (19:30 UTC)
Expired: Jun 4, 1998, 4:15 PM EDT
In force: 45 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 19:31 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
Jun 4, 1:45 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.5 hours before the alert went out and 88 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: 1522 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1198 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

984 
WUUS1 KCAE 041931 RRA
SVRCAE
SCC027-042015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
330 PM EDT THU JUN 4 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLARENDON COUNTY IN SOUTH CAROLINA

* UNTIL 415 PM EDT 

* AT 330 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM 12 MILES NORTHWEST OF SUMMERTON MOVING 
  EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PAXVILLE AT 350 PM
  MANNING AT 355 PM

SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES 
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO 
RAPIDLY CHANGING WEATHER CONDITIONS.

MWC/RJL

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 4, 2:55 PM EDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
255 PM EDT THU JUN 04 1998

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

250 PM     2 E LEXINGTON             SC   WIND DAMAGE
06/04/98   LEXINGTON                      SPOTTER REPORTS LARGE
                                          LIMBS DOWN ON HIGHWAY 378
                                          JUST EAST OF LEXINGTON

HG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 1:52 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, Saluda	53 min
Jun 4, 2:02 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	43 min
Jun 4, 2:21 PM EDT	Severe Thunderstorm Warning	CAE	Saluda	39 min
Jun 4, 2:26 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	64 min
Jun 4, 3:34 PM EDT	Tornado Warning	CAE	Edgefield	56 min
Jun 4, 5:41 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	49 min
Jun 4, 5:54 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	66 min
Jun 4, 6:49 PM EDT	Severe Thunderstorm Warning	CAE	Saluda	26 min
Jun 4, 7:02 PM EDT	Tornado Warning	CAE	Lancaster	28 min
Jun 4, 7:09 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	51 min
Jun 4, 7:17 PM EDT	Severe Thunderstorm Warning	CAE	Richland	58 min
Jun 4, 7:30 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	45 min
Jun 4, 7:38 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	67 min
Jun 4, 7:45 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	30 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1998 Every severe thunderstorm warning in 1998

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.