Alert archive / South Carolina / Tornado Warnings in 1999
Tornado Warning 10, NWS Columbia, SC
NWS Columbia, SC issued this tornado warning at Apr 24, 1999, 5:39 PM EDT for Aiken County, South Carolina. It was in force for 51 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
- Apr 24, 1999, 5:39 PM EDT (21:39 UTC)
- Expired
- Apr 24, 1999, 6:30 PM EDT
- In force
- 51 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Aiken County, SC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 24, 6:00 PM EDT | Thunderstorm Wind 50 | Aiken, SC | Sheriff reported trees down at hwys 39/391. |
| Apr 24, 6:05 PM EDT | Thunderstorm Wind 50 | Kitchings Mill, SC | Sheriff reported a few trees down. |
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 24, 4:30 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 9.7 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
- 1256 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1157 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
999 WFUS1 KCAE 242138 RRA TORCAE SCC003-242230- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 539 PM EDT SAT APR 24 1999 THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A * TORNADO WARNING FOR... AIKEN COUNTY IN SOUTH CAROLINA * UNTIL 630 PM EDT * AT 535 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO JUST NORTH OF KITCHINGS MILL. MOVEMENT WAS SOUTH AT 20 MPH. * THE TORNADO WILL BE NEAR... WINDSOR AT 600 PM IF YOU ARE IN THE PATH OF THIS TORNADO TAKE COVER GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES. DO NOT STAY IN A CAR OR MOBILE HOME DURING A TORNADO. GO TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT. AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE. JDB
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
Special weather statement, Apr 24, 3:47 PM EDT, 1 hour 52 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035-036- 037-038-041-GAZ040-063-064-065-077-250245- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 347 PM EDT SAT APR 24 1999 THE SEVERE WEATHER 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 SEVERE WEATHER OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN GEORGIA: BURKE COLUMBIA LINCOLN MCDUFFIE RICHMOND THE AIRMASS ACROSS CENTRAL SOUTH CAROLINA HAS BECOME UNSTABLE DURING THE PAST FEW HOURS. THE UNSTABLE AIRMASS AND THE AFTERNOON HEATING WILL COMBINE TO PRODUCE SCATTERED THUNDERSTORMS. A FEW THUNDERSTORMS MAY BECOME SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS. ALL INTERESTS SHOULD BE AWARE OF THIS POTENTIAL FOR SEVERE WEATHER AND KEEP POSTED ON WEATHER STATEMENTS...WATCHES... OR WARNINGS WHICH MAY BE ISSUED BY THE NATIONAL WEATHER SERVICE. BE PREPARED TO TAKE QUICK ACTION IF THREATENING WEATHER IS SIGHTED OR A WARNING IS ISSUED FOR YOUR AREA. EMERGENCY PREPAREDNESS OFFICIALS ARE REQUESTED TO REMAIN ALERT AND MAKE PRELIMINARY PLANS TO DEAL WITH SEVERE WEATHER SHOULD IT OCCUR. CDL
Special weather statement, Apr 24, 3:47 PM EDT, 1 hour 52 minutes before
SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035-036- 037-038-041-GAZ040-063-064-065-077-250245- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 347 PM EDT SAT APR 24 1999 THE SEVERE WEATHER 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 SEVERE WEATHER OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN GEORGIA: BURKE COLUMBIA LINCOLN MCDUFFIE RICHMOND THE AIRMASS ACROSS CENTRAL SOUTH CAROLINA HAS BECOME UNSTABLE DURING THE PAST FEW HOURS. THE UNSTABLE AIRMASS AND THE AFTERNOON HEATING WILL COMBINE TO PRODUCE SCATTERED THUNDERSTORMS. A FEW THUNDERSTORMS MAY BECOME SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS. ALL INTERESTS SHOULD BE AWARE OF THIS POTENTIAL FOR SEVERE WEATHER AND KEEP POSTED ON WEATHER STATEMENTS...WATCHES... OR WARNINGS WHICH MAY BE ISSUED BY THE NATIONAL WEATHER SERVICE. BE PREPARED TO TAKE QUICK ACTION IF THREATENING WEATHER IS SIGHTED OR A WARNING IS ISSUED FOR YOUR AREA. EMERGENCY PREPAREDNESS OFFICIALS ARE REQUESTED TO REMAIN ALERT AND MAKE PRELIMINARY PLANS TO DEAL WITH SEVERE WEATHER SHOULD IT OCCUR. CDL
Local storm report, Apr 24, 5:09 PM EDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
509 PM EDT SAT APR 24 1999
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
500 PM SALUDA SC 2.75 INCH HAIL
04/24/99 SALUDA REPORTED BY COUNTY
SHERIFF.
CDLLocal storm report, Apr 24, 5:32 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
532 PM EDT SAT APR 24 1999
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
525 PM 28 NNW AIKEN SC 2.75 INCH HAIL
04/24/99 AIKEN SKYWARN SPOTTER REPORTED
BASEBALL SIZE HAIL NEAR
MONETTA IN AIKEN COUNTY.
AWPThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 3:59 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg | 31 min |
| Apr 24, 4:25 PM EDT | Tornado Warning | CAE | Newberry | 65 min |
| Apr 24, 4:39 PM EDT | Tornado Warning | CAE | Saluda | 66 min |
| Apr 24, 5:20 PM EDT | Tornado Warning | CAE | Aiken | 25 min |
| Apr 24, 6:03 PM EDT | Severe Thunderstorm Warning | CAE | Barnwell | 42 min |
| Apr 24, 6:33 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg | 42 min |
Nearby
Tornado Warnings in South Carolina, 1999Every tornado warning in 1999Tornadoes in 1999
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.