Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 63, NWS Columbia, SC

May 4, 1998Clarendon County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 4, 1998, 2:08 PM EDT for Clarendon County, South Carolina. It was in force for 67 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: May 4, 1998, 2:08 PM EDT (18:08 UTC)
Expired: May 4, 1998, 3:15 PM EDT
In force: 67 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Clarendon County, SC

What was reported inside it

Time	Report	Where	Remark
May 4, 2:22 PM EDT	Hail 0.75	Summerton, SC	Spotter reported 3/4 inch hail at Jack's Creek Marina.

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
May 4, 12:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 6.1 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1443 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 11 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.

627 
WUUS1 KCAE 041809 RRA
SVRCAE
SCC027-041915-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
208 PM EDT MON MAY 4 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

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

* UNTIL 315 PM EDT 

* AT 200 PM WEATHER SERVICE RADAR SHOWED SEVERAL SEVERE THUNDERSTORMS 
  SCATTERED OVER CLARENDON COUNTY. THESE STORMS WERE MOVING 
  TO THE NORTHEAST AT 45 MPH AND WILL PRODUCE LARGE HAIL AND 
  DAMAGING WINDS..

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG 
BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. 

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, May 4, 1:43 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
143 PM EDT MON MAY 04 1998

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

135 PM     3 SW SUMTER               SC   1.75 INCH HAIL
05/04/98   SUMTER                         SKYWARN SPOTTER

TA

Local storm report, May 4, 1:54 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
154 PM EDT MON MAY 04 1998

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

145 PM     BAMBERG CITY              SC   .75 INCH HAIL
05/04/98   BAMBERG                        SKYWARN SPOTTER

TA

Local storm report, May 4, 2:00 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
200 PM EDT MON MAY 04 1998

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

150 PM     BRANCHVILLE               SC   1.00 INCH HAIL
05/04/98   ORANGEBURG                     SKYWARN SPOTTER

TA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 8:59 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	46 min
May 4, 1:17 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	58 min
May 4, 1:34 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	41 min
May 4, 1:46 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	44 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.