Alert archive / South Carolina / Tornado Warnings in 1998

Tornado Warning 6, NWS Columbia, SC

May 7, 1998Edgefield County, South Carolina

NWS Columbia, SC issued this tornado warning at May 7, 1998, 7:10 PM EDT for Edgefield County, South Carolina. It was in force for 35 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 7, 1998, 7:10 PM EDT (23:10 UTC)
Expired
May 7, 1998, 7:45 PM EDT
In force
35 min
Issued by
NWS Columbia, SC
Area
Whole counties

County Edgefield County, SC

What was reported inside it

TimeReportWhereRemark
May 7, 7:15 PM EDTTornado F3Edgefield, SCAn F3 tornado touched down near SC highway 61 and moved east to SC highway 36 taking down numerous trees and causing major and minor damage to several homes.
May 7, 7:47 PM EDTTornado F2Johnston, SCAn F2 tornado touched down west of Johnston and moved into the community just after 8 pm EDT causing major damage to several homes and businesses.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 12:00Z, 11.2 hours before the alert went out and 207 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 12:00Z on 1998-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 280 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 12:00Z on 1998-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
280 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
931 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

284 
WFUS1 KCAE 072311 RRA
TORCAE
SCC037-072345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
710 PM EDT THU MAY 7 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN EDGEFIELD COUNTY IN SOUTH CAROLINA

* UNTIL 745 PM EDT 

* WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO 
  OVER  NORTHERN EDGEFIELD COUNTY NEAR HWY 283 IN NORTHWEST 
  EDGEFIELD COUNTY. THIS STORM WAS MOVING EAST AT 30 MPH. PEOPLE 
  ALONG HWY 283 SHOULD TAKE COVER.

THIS IS A DANGEROUS STORM...TAKE COVER IMMEDIATELY IF YOU ARE IN 
ITS PATH. 

LVCC

What forecasters said that day

The local office's own words before this tornado 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, 1:44 PM EDT, 5 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
144 PM EDT THU MAY 07 1998

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

120 PM     5 S WAYNESBORO            GA   .75 INCH HAIL
05/07/98   BURKE                          COUNTY DIRECTOR REPORTS
                                          HAIL HIGHWAY 56

TA
Special weather statement, May 7, 3:15 PM EDT, 3 hours 55 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-
035-036-037-038-041-GAZ040-063-064-065-077-072011-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
315 PM EDT THU MAY 7 1998

THE THREAT OF SEVERE WEATHER HAS DIMINISHED IN PART OF THE WATCH
AREA. THE WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN
THE NATIONAL WEATHER SERVICE OFFICE COLUMBIA COUNTY WARNING AREA:

AIKEN        BAMBERG      BARNWELL     BURKE        CALHOUN
CHESTERFIELD CLARENDON    COLUMBIA     EDGEFIELD    FAIRFIELD
KERSHAW      LANCASTER    LEE          LEXINGTON    LINCOLN
MCCORMICK    MCDUFFIE     NEWBERRY     ORANGEBURG   RICHLAND
RICHMOND     SALUDA       SUMTER

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO CROSS THE EASTERN MIDLANDS
THROUGH 5 PM...BUT NO SEVERE WEATHER IS EXPECTED.

LM
Special weather statement, May 7, 3:15 PM EDT, 3 hours 55 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-
035-036-037-038-041-GAZ040-063-064-065-077-072011-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
315 PM EDT THU MAY 7 1998

THE THREAT OF SEVERE WEATHER HAS DIMINISHED IN PART OF THE WATCH
AREA. THE WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN
THE NATIONAL WEATHER SERVICE OFFICE COLUMBIA COUNTY WARNING AREA:

AIKEN        BAMBERG      BARNWELL     BURKE        CALHOUN
CHESTERFIELD CLARENDON    COLUMBIA     EDGEFIELD    FAIRFIELD
KERSHAW      LANCASTER    LEE          LEXINGTON    LINCOLN
MCCORMICK    MCDUFFIE     NEWBERRY     ORANGEBURG   RICHLAND
RICHMOND     SALUDA       SUMTER

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO CROSS THE EASTERN MIDLANDS
THROUGH 5 PM...BUT NO SEVERE WEATHER IS EXPECTED.

LM
Special weather statement, May 7, 3:42 PM EDT, 3 hours 28 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035-
036-037-038-041-GAZ040-063-064-065-077-080000-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
342 PM EDT THU MAY 7 1998

THE OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN SOUTH CAROLINA:
AIKEN        BAMBERG      BARNWELL     CALHOUN      CHESTERFIELD
CLARENDON    EDGEFIELD    FAIRFIELD    KERSHAW      LANCASTER
LEE          LEXINGTON    MCCORMICK    NEWBERRY     ORANGEBURG
RICHLAND     SALUDA       SUMTER

THE OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN GEORGIA:
BURKE        COLUMBIA     LINCOLN      MCDUFFIE     RICHMOND

AN UPPER LEVEL DISTURBANCE APPROACHING THE WESTERN CAROLINAS AND
NORTHERN GEORGIA LATE THIS AFTERNOON WILL BE ACCOMPANIED BY A STRONG UPPER
LEVEL FLOW. IN THE LOWER LEVELS, THE AIRMASS IS ALREADY UNSTABLE AHEAD
OF AN APPROACHING FRONT.

THUNDERSTORMS DEVELOPING WEST OF THE STATE THIS AFTERNOON ARE EXPECTED
TO MOVE INTO CENTRAL SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA
OF GEORGIA THIS EVENING AND TONIGHT.

THE SEVERE STORMS ARE EXPECTED TO PRODUCE VERY HEAVY RAIN...DAMAGING
HAIL TO 2 INCHES AND WIND GUST TO 60 MPH. A FEW TORNADOES ARE ALSO
POSSIBLE WITH THE MOST INTENSE STORMS.

EMERGENCY PREPAREDNESS OFFICIALS ARE REQUESTED TO REMAIN ALERT AND
MAKE PRELIMINARY PLANS TO DEAL WITH SEVERE WEATHER SHOULD IT OCCUR.
SEVERE WEATHER SPOTTERS...INCLUDING AMATEUR RADIO OPERATORS...
SHOULD MONITOR THIS WEATHER SITUATION AND RELAY REPORTS PROMPTLY
TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE.

LM
Local storm report, May 7, 6:35 PM EDT, 35 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

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 6:29 PM EDTSevere Thunderstorm WarningCAEMcCormick61 min
May 7, 6:44 PM EDTSevere Thunderstorm WarningCAEEdgefield61 min
May 7, 6:58 PM EDTSevere Thunderstorm WarningCAESaluda62 min
May 7, 7:29 PM EDTSevere Thunderstorm WarningCAEMcCormick61 min
May 7, 7:46 PM EDTTornado WarningCAEEdgefield, Saluda29 min
May 7, 7:57 PM EDTTornado WarningCAEMcCormick33 min

Nearby

Tornado Warnings in South Carolina, 1998Every tornado warning in 1998Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.