Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 37, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at May 4, 2021, 4:38 PM EDT for Edgefield County, McCormick County, Saluda County, South Carolina; Columbia County, Lincoln County, McDuffie County, Georgia. It was in force for 53 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
- May 4, 2021, 4:38 PM EDT (20:38 UTC)
- Expired
- May 4, 2021, 5:31 PM EDT
- In force
- 53 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Edgefield County, SC, McCormick County, SC, Saluda County, SC
The radar
The Columbia radar (KCAE), 95 km from the middle of the area, began a volume at 20:38 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 |
|---|---|---|---|
| May 4, 5:00 PM EDT | TSTM WND DMG | 1 Ene Martinez, GA | PUBLIC REPORT OF TREES DOWN ON BASTON ROAD IN MARTINEZ. TIME ESTIMATED BY RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 8.6 hours before the alert went out and 223 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
- 573 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
295
WUUS52 KCAE 042038
SVRCAE
GAC073-181-189-SCC037-065-081-042145-
/O.NEW.KCAE.SV.W.0037.210504T2038Z-210504T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
438 PM EDT Tue May 4 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
McDuffie County in east central Georgia...
Columbia County in east central Georgia...
Lincoln County in east central Georgia...
Edgefield County in central South Carolina...
Saluda County in central South Carolina...
Eastern McCormick County in central South Carolina...
* Until 545 PM EDT.
* At 437 PM EDT, severe thunderstorms were located along a line
extending from near Saluda County Airport to near Wrightsboro,
moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
North Augusta, Grovetown, Evans, Thomson, Batesburg-Leesville,
Martinez, Edgefield, Saluda, McCormick, Harlem, Johnston,
Lincolnton, Ridge Spring, Clarks Hill Recreation Area, Edgefield
County Airport, Elijah Clark State Park, Mistletoe State Park,
Wrightsboro, Village Plaza Shopping Center and J. Strom Thurmond
Dam.
This includes Interstate 20 in Georgia between mile markers 167 and
198.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways or
walk through high water.
&&
LAT...LON 3365 8258 3365 8249 3377 8256 3390 8232
3399 8222 3398 8205 3395 8204 3396 8202
3413 8187 3418 8186 3417 8177 3419 8173
3408 8154 3407 8147 3388 8157 3353 8202
3331 8235 3336 8255 3341 8255 3360 8265
TIME...MOT...LOC 2037Z 268DEG 15KT 3389 8186 3358 8267
HAIL...0.75IN
WIND...60MPH
$$
JAQ2 follow-up statements
322
WWUS52 KCAE 042120
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
520 PM EDT Tue May 4 2021
GAC181-042129-
/O.CAN.KCAE.SV.W.0037.000000T0000Z-210504T2145Z/
Lincoln GA-
520 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR LINCOLN COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
east central Georgia...and central South Carolina.
Report any hail, damaging winds or flooding directly to the Columbia
National Weather Service at 803 234 4115 when it is safe to do so.
You can also send reports by Facebook or Twitter to NWSColumbia or
by e-mail at NWS.Columbia@noaa.gov.
LAT...LON 3376 8207 3408 8154 3407 8147 3388 8157
3353 8202 3331 8235 3336 8255 3341 8255
3350 8260
TIME...MOT...LOC 2119Z 285DEG 21KT 3388 8162 3350 8237
$$
GAC073-189-SCC037-065-081-042145-
/O.CON.KCAE.SV.W.0037.000000T0000Z-210504T2145Z/
McDuffie GA-Columbia GA-Edgefield SC-Saluda SC-McCormick SC-
520 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR MCDUFFIE...COLUMBIA...EDGEFIELD...SOUTHEASTERN SALUDA AND
SOUTHEASTERN MCCORMICK COUNTIES...
At 519 PM EDT, severe thunderstorms were located along a line
extending from near Ridge Spring to near Appling, moving east at 25
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
North Augusta, Grovetown, Evans, Thomson, Batesburg-Leesville,
Martinez, Edgefield, Harlem, Johnston, Ridge Spring, Appling, Clarks
Hill Recreation Area, Edgefield County Airport, Riverwood, Village
Plaza Shopping Center, J. Strom Thurmond Dam, Thomson-McDuffie County
Airport, Saluda County Airport, Dearing and Monetta.
This includes Interstate 20 in Georgia between mile markers 167 and
198.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways
or walk through high water.
Report any hail, damaging winds or flooding directly to the Columbia
National Weather Service at 803 234 4115 when it is safe to do so.
You can also send reports by Facebook or Twitter to NWSColumbia or
by e-mail at NWS.Columbia@noaa.gov.
&&
LAT...LON 3376 8207 3408 8154 3407 8147 3388 8157
3353 8202 3331 8235 3336 8255 3341 8255
3350 8260
TIME...MOT...LOC 2119Z 285DEG 21KT 3388 8162 3350 8237
HAIL...<.75IN
WIND...60MPH
$$
JAQ392
WWUS52 KCAE 042131
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
531 PM EDT Tue May 4 2021
GAC073-189-SCC037-065-081-042141-
/O.CAN.KCAE.SV.W.0037.000000T0000Z-210504T2145Z/
McDuffie GA-Columbia GA-Edgefield SC-Saluda SC-McCormick SC-
531 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR MCDUFFIE...COLUMBIA...
EDGEFIELD...SOUTHEASTERN SALUDA AND SOUTHEASTERN MCCORMICK COUNTIES
IS CANCELLED...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
east central Georgia...and central South Carolina.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Columbia.
LAT...LON 3376 8207 3408 8154 3407 8147 3388 8157
3353 8202 3331 8235 3336 8255 3341 8255
3350 8260
TIME...MOT...LOC 2129Z 268DEG 15KT 3388 8157 3350 8232
$$
JAQThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:29 PM EDT | Special Weather Statement | CAE | Saluda | 31 min |
| May 4, 3:42 PM EDT | Special Weather Statement | CAE | Lexington | 33 min |
| May 4, 3:45 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Newberry, Richland, Saluda | 45 min |
| May 4, 3:50 PM EDT | Special Weather Statement | CAE | Newberry | 25 min |
| May 4, 3:52 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Richland | 41 min |
| May 4, 3:54 PM EDT | Special Weather Statement | CAE | McCormick | 36 min |
| May 4, 3:54 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 36 min |
| May 4, 4:00 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry, Saluda | 45 min |
| May 4, 4:16 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Kershaw, Lancaster, Newberry, Richland | 59 min |
| May 4, 4:22 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Fairfield, Kershaw, Lancaster, Lee | 53 min |
| May 4, 4:46 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Lexington, Newberry, Richland | 44 min |
| May 4, 5:03 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster, Lee | 57 min |
| May 4, 5:30 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Lexington, Orangeburg | 60 min |
| May 4, 6:03 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Barnwell, Calhoun, Orangeburg, Richland | 57 min |
| May 4, 6:07 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Richland, Sumter | 53 min |
| May 4, 6:57 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon | 48 min |
| May 4, 6:37 PM EDT | Special Weather Statement | CAE | Burke | 23 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2021Severe Thunderstorm Warnings in Georgia, 2021Every severe thunderstorm warning in 2021
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.