Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 70, NWS Columbia, SC

May 7, 1998Lexington County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 7, 1998, 8:05 PM EDT for Lexington County, South Carolina. It was in force for 85 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
May 7, 1998, 8:05 PM EDT (00:05 UTC)
Expired
May 7, 1998, 9:30 PM EDT
In force
85 min
Issued by
NWS Columbia, SC
Area
Whole counties

County Lexington County, SC

The watch it was issued in

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

IssuedProductOfficeLasted
May 7, 5:00 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 0.1 hours before the alert went out and 162 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 1998-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 909 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, Charleston AFB, SC at 00:00Z on 1998-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.19395878Sfc1 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
909 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
990 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

598 
WUUS1 KCAE 080007
SVRCAE
SCC063-080130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
805 PM EDT THU MAY 7 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

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

* UNTIL 930 PM EDT

* WEATHER SERVICE RADAR INDICATED  A SEVERE THUNDERSTORM  NEAR
  BATESBURG-LEESVILLE . THIS STORM WAS MOVING EAST AROUND 30
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GILBERT AT 815 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.

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, May 7, 6:35 PM EDT, 1 hour 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
635 PM EDT THU MAY 07 1998

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

634 PM     MCCORMICK                 SC   1.75 INCH HAIL
05/07/98   MCCORMICK                      PUBLIC REPORTS QUARTER TO
                                          GOLF BALL SIZE HAIL

TTH
Local storm report, May 7, 7:16 PM EDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
716 PM EDT THU MAY 07 1998

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

714 PM     LINCOLNTON                GA   .88 INCH HAIL
05/07/98   LINCOLN                        PUBLIC REPORTS NICKEL
                                          SIZED HAIL

TTH
Local storm report, May 7, 7:24 PM EDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
724 PM EDT THU MAY 07 1998

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

724 PM     LINCOLNTON                GA   1.75 INCH HAIL
05/07/98   LINCOLN                        PUBLIC REPORTS GOLF BALL
                                          SIZED HAIL

TTH
Local storm report, May 7, 7:26 PM EDT, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
726 PM EDT THU MAY 07 1998

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

720 PM     25NW EDGEFIELD            SC   TORNADO
05/07/98   EDGEFIELD                      SPOTTER AND FIRE DEPT
                                          REPORTS TORNADO ON THE
                                          GROUND NEAR HIGHWAY 283 25
                                          MILES NORTH OF TOWN OF
                                          EDGEFIELD

TTH
Local storm report, May 7, 7:30 PM EDT, 35 minutes before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE COLUMBIA, SC
730 PM EDT THU MAY 07 1998

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

720 PM     25N EDGEFIELD             SC   TORNADO
05/07/98   EDGEFIELD                      SPOTTER AND FIRE DEPT
                                          REPORTS TORNADO ON THE
                                          GROUND NEAR HIGHWAY 283 25
                                          MILES NORTH OF TOWN OF
                                          EDGEFIELD

TTH
Local storm report, May 7, 7:55 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
755 PM EDT THU MAY 07 1998

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

745 PM     LINCOLNTON                GA   TORNADO
05/07/98   LINCOLN                        POLICE REPORTS DAMAGE FROM
                                          TORNADO IN TOWN OF
                                          LINCOLNTON AT 745 PM

TTH

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 8:07 PM EDTTornado WarningCAEEdgefield53 min
May 7, 8:22 PM EDTTornado WarningCAEAiken53 min
May 7, 9:25 PM EDTSevere Thunderstorm WarningCAEBamberg, Barnwell, Orangeburg65 min
May 7, 9:53 PM EDTSevere Thunderstorm WarningCAEEdgefield67 min
May 7, 11:59 PM EDTTornado WarningCAEMcCormick31 min
May 8, 12:28 AM EDTSevere Thunderstorm WarningCAEOrangeburg47 min
May 8, 2:15 AM EDTSevere Thunderstorm WarningCAEFairfield45 min
May 8, 2:33 AM EDTSevere Thunderstorm WarningCAELexington42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1998Every 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.