Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 26, NWS Columbia, SC

April 3, 1998Sumter County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Apr 3, 1998, 11:04 PM EST for Sumter County, South Carolina. It was in force for 56 min. 1 report 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: Apr 3, 1998, 11:04 PM EST (04:04 UTC)
Expired: Apr 4, 1998, 12:00 AM EST
In force: 56 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Sumter County, SC

What was reported inside it

Time	Report	Where	Remark
Apr 3, 11:10 PM EST	Thunderstorm Wind 50	Sumter, SC	WIS TV reports trees down along highway 378 in western Sumter county.

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.

Issued	Product	Office	Lasted
Apr 3, 10:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 4.1 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

416 
WUUS1 KCAE 040401 RRA
SVRCAE
SCC003-085-GAC245-040500-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1104 PM EST FRI APR 3 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AIKEN COUNTY IN SOUTH CAROLINA
  SUMTER COUNTY IN SOUTH CAROLINA
  RICHMOND COUNTY IN GEORGIA

* UNTIL 1200 AM EST

* NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A SEVERE 
  THUNDERSTORM OVER EASTERN RICHLAND COUNTY NEAR FORT JACKSON 
  MOVING EAST AT INTO SUMTER COUNTY. ANOTHER SEVERE THUNDERSTORM 
  WAS LOCATED OVER COLUMBIA COUNTY, GEORGIA MOVING INTO THE 
  AUGUSTA AREA OF RICHMOND COUNTY AND INTO AIKEN COUNTY. THE 
  STORMS ARE MOVING EAST AT 45 MPH.

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

CTC/MWS

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, Apr 3, 10:22 PM EST, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1022 PM EST FRI APR 03 1998

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

945 PM     JUST NORTH OF EDGEFIELD   SC   TORNADO
04/03/98   EDGEFIELD                      TORNADO ON GROUND..NO
                                          DAMAGE

TTH

Local storm report, Apr 3, 10:43 PM EST, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1043 PM EST FRI APR 03 1998

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

1030 PM    OAK GROVE-5NW CAE         SC   .75 INCH HAIL
04/03/98   LEXINGTON

1035 PM    COLUMBIA                  SC   .75 INCH HAIL
04/03/98   RICHLAND                       ROSEWOOD DRIVE IN COLUMBIA

1030 PM    CAYCE                     SC   .75 INCH HAIL
04/03/98   LEXINGTON

1030 PM    SOUTH CONGAREE-5SW CAE    SC   1.00 INCH HAIL
04/03/98   LEXINGTON

1043 PM    THOMSON-HARLEM            GA   1.00 INCH HAIL
04/03/98   MCDUFFIE

1047 PM    HERTFORD FARM RD-EVANS RD SC   1.00 INCH HAIL
04/03/98   AIKEN                          IN SOUTHERN AIKEN COUNTY

1047 PM    MARTINEZ-EVANS AREA       GA   1.00 INCH HAIL
04/03/98   COLUMBIA

1040 PM    NORTHEAST RICHLAND CO     SC   .88 INCH HAIL
04/03/98   RICHLAND                       13 NE CAE

1050 PM    GA HWY 232-I20            GA   1.00 INCH HAIL
04/03/98   COLUMBIA                       HAIL COVERING GROUND

TTH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 9:01 PM EST	Severe Thunderstorm Warning	CAE	McCormick	59 min
Apr 3, 9:12 PM EST	Tornado Warning	CAE	McCormick	18 min
Apr 3, 9:36 PM EST	Tornado Warning	CAE	Edgefield, Saluda	39 min
Apr 3, 10:08 PM EST	Severe Thunderstorm Warning	CAE	Lexington, Newberry	67 min
Apr 3, 10:19 PM EST	Tornado Warning	CAE	Lexington	56 min
Apr 3, 10:32 PM EST	Severe Thunderstorm Warning	CAE	Richland	43 min
Apr 3, 11:04 PM EST	Severe Thunderstorm Warning	CAE	Aiken	56 min
Apr 3, 11:45 PM EST	Severe Thunderstorm Warning	CAE	Barnwell	45 min
Apr 3, 11:55 PM EST	Severe Thunderstorm Warning	CAE	Bamberg	35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.