Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 50, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Apr 22, 1998, 2:42 PM EDT for Aiken County, South Carolina. It was in force for 63 min. 4 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
- Apr 22, 1998, 2:42 PM EDT (18:42 UTC)
- Expired
- Apr 22, 1998, 3:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Aiken County, SC
The radar
The Columbia radar (KCAE), 66 km from the middle of the area, began a volume at 18:42 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 2:58 PM EDT | Hail 0.75 | North Augusta, SC | TV 12 spotters report 3/4 inch hail in North Augusta. |
| Apr 22, 3:05 PM EDT | Hail 0.75 | Clearwater, SC | SKYWARN spotters report 3/4 inch hail. |
| Apr 22, 3:25 PM EDT | Hail 0.88 | Aiken, SC | SKYWARN spotter reported nickel size hail at highways 302 and 278. |
| Apr 22, 3:30 PM EDT | Hail 0.88 | Aiken, SC | SKYWARN spotter reported nickel size hail at highways 302 and 78. |
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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 6.7 hours before the alert went out and 168 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1422 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
776 WUUS1 KCAE 221843 RRA SVRCAE SCC003-221945- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 242 PM EDT WED APR 22 1998 THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... AIKEN COUNTY IN SOUTH CAROLINA * UNTIL 345 PM EDT * AT 243 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM IN THE AUGUSTA VICINITY MOVING EAST AT 25 MPH ALONG HIGHWAY 1. * THE SEVERE THUNDERSTORM WILL BE NEAR... NORTH AUGUSTA AT 250 PM AIKEN AT 315 AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE. HG
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
Special weather statement, Apr 22, 2:22 PM EDT, 20 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035- 036-037-038-041-GAZ040-063-064-065-077-230222- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 222 PM EDT WED APR 22 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 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... AN UPPER LEVEL DISTURBANCE WILL MOVE OVER CENTRAL SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF EAST CENTRAL GEORGIA THIS AFTERNOON AND EVENING. THIS WILL HELP TO DESTABLIZE THE ATMOSPHERE AND AID IN THE DEVELOPMENT OF THUNDERSTORMS. THE MAIN THREAT WILL BE FROM HAIL 3/4 TO 1 INCH IN SIZE. THESE STORMS COULD PRODUCE BRIEF HEAVY RAINFALL AMOUNTS OF AROUND 1 INCH WITH WIND GUSTS TO 30 MPH. 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. TTH
Special weather statement, Apr 22, 2:22 PM EDT, 20 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035- 036-037-038-041-GAZ040-063-064-065-077-230222- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 222 PM EDT WED APR 22 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 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... AN UPPER LEVEL DISTURBANCE WILL MOVE OVER CENTRAL SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF EAST CENTRAL GEORGIA THIS AFTERNOON AND EVENING. THIS WILL HELP TO DESTABLIZE THE ATMOSPHERE AND AID IN THE DEVELOPMENT OF THUNDERSTORMS. THE MAIN THREAT WILL BE FROM HAIL 3/4 TO 1 INCH IN SIZE. THESE STORMS COULD PRODUCE BRIEF HEAVY RAINFALL AMOUNTS OF AROUND 1 INCH WITH WIND GUSTS TO 30 MPH. 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. TTH
Local storm report, Apr 22, 2:25 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
225 PM EDT WED APR 22 1998
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
223 PM GROVETOWN GA .75 INCH HAIL
04/22/98 RICHMOND DIME SIZE HAIL COVERING
THE GROUND
225 PM SOUTHERN COLUMBIA COUNTY GA .75 INCH HAIL
04/22/98 COLUMBIA DIME SIZE HAIL REPORTED BY
SPOTTER SCOTT SHERMAN
HGThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:26 PM EDT | Severe Thunderstorm Warning | CAE | Saluda | 64 min |
| Apr 22, 3:54 PM EDT | Severe Thunderstorm Warning | CAE | Lexington | 66 min |
| Apr 22, 5:12 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Richland | 33 min |
| Apr 22, 6:44 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield | 46 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; radar from the NEXRAD Level II archive.