Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 40, NWS Columbia, SC

April 8, 1998Calhoun County, Richland County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Apr 8, 1998, 11:41 PM EDT for Calhoun County, Richland County, South Carolina. It was in force for 34 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 8, 1998, 11:41 PM EDT (03:41 UTC)
Expired
Apr 9, 1998, 12:15 AM EDT
In force
34 min
Issued by
NWS Columbia, SC
Area
Whole counties

Counties Calhoun County, SC, Richland County, SC

What was reported inside it

TimeReportWhereRemark
Apr 8, 11:45 PM EDTHail 0.75St Matthews, SCStorm survey found public reporting penny size hail along highway 178.

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
Apr 8, 10:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 3.7 hours before the alert went out and 131 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 1998-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1998-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
942 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
320 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.

988 
WUUS1 KCAE 090339 RRA
SVRCAE
SCC017-079-090415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1141 PM EDT WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CALHOUN COUNTY IN SOUTH CAROLINA
  SOUTHERN RICHLAND COUNTY IN SOUTH CAROLINA

* UNTIL 1215 AM EDT

* WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM DEVELOPING 
  OVER WESTERN CALHOUN COUNTY MOVING EASTNORTHEAST AT 55 MPH. 
  THE STORM WILL MOVE ACROSS SOUTHERN RICHLAND COUNTY AND PRODUCE 
  LARGE HAIL.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SANDY RUN AT 1145 PM
  CONGAREE AT 1155 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.

AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS 
STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER 
SERVICE OFFICE.

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 8, 10:10 PM EDT, 1 hour 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1010 PM EDT WED APR 08 1998

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

1009 PM    APPLING                   GA   .75 INCH HAIL
04/08/98   COLUMBIA                       DIME SIZE HAIL. REPORTED
                                          BY SHERIFF.

940 PM     10 E SALUDA               SC   .75 INCH HAIL
04/08/98   SALUDA                         DIME SIZE HAIL ABOUT 10
                                          MILES E OF SALUDA. HAM
                                          REPORT.

RCC
Local storm report, Apr 8, 10:28 PM EDT, 1 hour 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1028 PM EDT WED APR 08 1998

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

1010 PM    3 N COLUMBIA              SC   .75 INCH HAIL
04/08/98   RICHLAND                       STATE HIGHWAY PATROL
                                          REPORTED DIME SIZE HAIL
                                          EAST OF I-26 NEAR I-20.

RCC
Local storm report, Apr 8, 10:34 PM EDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1034 PM EDT WED APR 08 1998

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

1023 PM    12 SW EDGEFIELD           SC   .75 INCH HAIL
04/08/98   EDGEFIELD                      SHERIFF REPORTED DIME SIZE
                                          HAIL AT COLLIERS...12
                                          MILES SW OF EDGEFIELD.

RCC
Local storm report, Apr 8, 11:34 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1134 PM EDT WED APR 08 1998

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

1130 PM    DEARING                   GA   1.75 INCH HAIL
04/08/98   MCDUFFIE                       PEA TO GOLF BALLSIZED
                                          HAIL. SPOTTER REPORT.

1131 PM    HARLEM                    GA   .50 INCH HAIL
04/08/98   COLUMBIA                       PEA SIZED HAIL. SPOTTER
                                          REPORT.

RCC
Local storm report, Apr 8, 11:39 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1139 PM EDT WED APR 08 1998

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

1130 PM    HARLEM                    GA   .75 INCH HAIL
04/08/98   COLUMBIA                       DIME SIZED HAIL AT HARLEM
                                          GA. SPOTTER

1140 PM    GROVETOWN                 GA   1.00 INCH HAIL
04/08/98   COLUMBIA                       QUARTER SIZED HAIL AT
                                          GROVETOWN. HAM RADIO
                                          REPORT.

RCC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 9:18 PM EDTSevere Thunderstorm WarningCAESaluda42 min
Apr 8, 9:53 PM EDTSevere Thunderstorm WarningCAELexington37 min
Apr 8, 10:03 PM EDTSevere Thunderstorm WarningCAERichland12 min
Apr 8, 10:08 PM EDTSevere Thunderstorm WarningCAEEdgefield37 min
Apr 8, 11:51 PM EDTSevere Thunderstorm WarningCAEAiken39 min
Apr 9, 12:34 AM EDTSevere Thunderstorm WarningCAELexington26 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.