Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 5, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Feb 28, 2011, 7:24 PM EST for Edgefield County, McCormick County, South Carolina; Lincoln County, Georgia. It was in force for 29 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Feb 28, 2011, 7:24 PM EST (00:24 UTC)
- Expired
- Feb 28, 2011, 7:53 PM EST
- In force
- 29 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
Counties Lincoln County, GA, Edgefield County, SC, McCormick County, SC
The radar
The Columbia radar (KCAE), 96 km from the middle of the area, began a volume at 00:27 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 |
|---|---|---|---|
| Feb 28, 7:48 PM EST | TSTM WND DMG | Johnston, SC | TREES DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 28, 5:04 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.4 hours before the alert went out and 225 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
- 363 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 760 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 353 m²/s²
- 0-3 km storm-relative helicity
- 418 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
117
WUUS52 KCAE 010024
SVRCAE
GAC181-SCC037-065-010115-
/O.NEW.KCAE.SV.W.0005.110301T0024Z-110301T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
724 PM EST MON FEB 28 2011
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN LINCOLN COUNTY IN EAST CENTRAL GEORGIA
NORTHERN EDGEFIELD COUNTY IN CENTRAL SOUTH CAROLINA
CENTRAL MCCORMICK COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 815 PM EST
* AT 721 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR LINCOLNTON...OR 18 MILES
EAST OF WASHINGTON...AND MOVING EAST AT 55 MPH.
* SOME COMMUNITIES IN THE WARNING AREA INCLUDE LINCOLNTON...
MCCORMICK...JOHNSTON AND EDGEFIELD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
MONDAY EVENING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.
&&
LAT...LON 3383 8253 3398 8230 3397 8229 3402 8224
3397 8219 3399 8214 3398 8204 3395 8204
3398 8189 3388 8187 3385 8178 3381 8165
3370 8223 3369 8235 3368 8237
TIME...MOT...LOC 0024Z 263DEG 50KT 3380 8234
$$
SJN1 follow-up statement
481
WWUS52 KCAE 010053
SVSCAE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
753 PM EST MON FEB 28 2011
GAC181-SCC037-065-010102-
/O.CAN.KCAE.SV.W.0005.000000T0000Z-110301T0115Z/
LINCOLN GA-EDGEFIELD SC-MCCORMICK SC-
753 PM EST MON FEB 28 2011
...THE SEVERE THUNDERSTORM WARNING FOR MCCORMICK...EDGEFIELD AND
LINCOLN COUNTIES IS CANCELLED...
THE STRONG STORMS IN THE WESTERN CSRA HAVE WEAKENED AND MOVED INTO
THE SOUTHERN MIDLANS OF SOUTH CAROLINA.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
MONDAY EVENING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1...8 7
7...6 3 3...6 7 7 2.
LAT...LON 3383 8253 3398 8230 3397 8229 3402 8224
3397 8219 3399 8214 3398 8204 3395 8204
3398 8189 3388 8187 3385 8178 3381 8165
3370 8223 3369 8235 3368 8237
TIME...MOT...LOC 0052Z 263DEG 50KT 3384 8187
$$
SJNThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 7:13 PM EST | Tornado Warning | CAE | Fairfield, Lexington, Newberry, Richland, Saluda | 47 min |
| Feb 28, 7:18 PM EST | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster | 57 min |
| Feb 28, 7:28 PM EST | Severe Thunderstorm Warning | CAE | Aiken, Chesterfield, Fairfield, Kershaw, Lancaster, Lexington and 3 more | 62 min |
| Feb 28, 8:11 PM EST | Severe Thunderstorm Warning | CAE | Chesterfield | 23 min |
| Feb 28, 8:49 PM EST | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Sumter | 29 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2011Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.