Alert archive / South Carolina / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in South Carolina, 2021
231 severe thunderstorm warnings in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 231
- Busiest month
- August59 severe thunderstorm warnings
- Busiest day
- May 3, 202127 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
129 of 231 severe thunderstorm warnings covering South Carolina in 2021 had a qualifying storm report inside them; 233 of 367 hail, wind and damage reports fell inside a warning, on average 18 minutes after it went out.
South Carolina, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 231 | 129 | 44% | 367 | 63% | 18 min |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Columbia, SC: severe thunderstorm warnings | 80 | 50 | 38% | 156 | 76% | 16 min |
| NWS Charleston, SC: severe thunderstorm warnings | 53 | 30 | 43% | 126 | 40% | 19 min |
| NWS Wilmington, NC: severe thunderstorm warnings | 46 | 23 | 50% | 57 | 79% | 19 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 176 | 95 | 46% | 267 | 63% | 17 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 27, 9:24 AM EST | Severe Thunderstorm Warning | CHS | Beaufort, Hampton, Jasper | 51 min |
| Jan 27, 9:46 AM EST | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 43 min |
| Feb 15, 7:01 PM EST | Severe Thunderstorm Warning | CHS | Jasper | 29 min |
| Feb 15, 7:27 PM EST | Severe Thunderstorm Warning | CHS | Hampton, Jasper | 32 min |
| Feb 15, 11:33 PM EST | Severe Thunderstorm Warning | ILM | Horry | 17 min |
| Mar 18, 3:17 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union | 43 min |
| Mar 18, 3:34 PM EDT | Severe Thunderstorm Warning | CAE | Newberry | 41 min |
| Mar 18, 4:26 PM EDT | Severe Thunderstorm Warning | GSP | York | 34 min |
| Mar 18, 5:24 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 36 min |
| Mar 25, 5:47 PM EDT | Severe Thunderstorm Warning | GSP | Chester | 28 min |
| Mar 25, 5:48 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster | 42 min |
| Mar 25, 6:28 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster | 47 min |
| Mar 25, 7:14 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield | 15 min |
| Mar 26, 1:29 AM EDT | Severe Thunderstorm Warning | GSP | Oconee | 31 min |
| Mar 26, 1:55 AM EDT | Severe Thunderstorm Warning | GSP | Oconee, Pickens | 35 min |
| Mar 26, 3:23 AM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson | 24 min |
| Mar 26, 4:44 AM EDT | Severe Thunderstorm Warning | GSP | Chester | 31 min |
| Mar 26, 8:23 AM EDT | Severe Thunderstorm Warning | CAE | McCormick | 22 min |
| Mar 26, 9:41 AM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood, Laurens | 49 min |
| Mar 26, 2:46 PM EDT | Severe Thunderstorm Warning | CAE | McCormick | 44 min |
| Mar 27, 7:05 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 25 min |
| Mar 28, 1:15 PM EDT | Severe Thunderstorm Warning | CAE | Newberry | 30 min |
| Mar 28, 3:49 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Lexington, Orangeburg, Richland, Sumter | 41 min |
| Mar 28, 4:23 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Sumter | 37 min |
| Mar 31, 5:19 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Saluda | 41 min |
| Mar 31, 5:32 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 58 min |
| Mar 31, 5:39 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Lexington, Saluda | 51 min |
| Mar 31, 5:58 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Colleton, Dorchester | 62 min |
| Mar 31, 5:58 PM EDT | Severe Thunderstorm Warning | ILM | Williamsburg | 32 min |
| Mar 31, 6:25 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 35 min |
| Mar 31, 7:53 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 67 min |
| Mar 31, 7:54 PM EDT | Severe Thunderstorm Warning | CHS | Charleston, Colleton, Dorchester | 66 min |
| Mar 31, 8:31 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Charleston, Colleton | 59 min |
| Apr 8, 9:50 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 25 min |
| Apr 8, 10:14 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee | 46 min |
| Apr 8, 10:30 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 45 min |
| Apr 8, 11:26 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson | 34 min |
| Apr 9, 12:01 AM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenwood, Laurens | 44 min |
| May 3, 1:56 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville | 49 min |
| May 3, 3:23 PM EDT | Severe Thunderstorm Warning | GSP | Greenwood, Laurens | 34 min |
| May 3, 3:24 PM EDT | Severe Thunderstorm Warning | CAE | Newberry, Saluda | 51 min |
| May 3, 3:28 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Saluda | 32 min |
| May 3, 3:28 PM EDT | Severe Thunderstorm Warning | GSP | Greenwood | 32 min |
| May 3, 3:32 PM EDT | Severe Thunderstorm Warning | CAE | Newberry | 43 min |
| May 3, 3:51 PM EDT | Severe Thunderstorm Warning | CAE | McCormick | 39 min |
| May 3, 3:59 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Richland | 31 min |
| May 3, 4:03 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Richland, Sumter | 27 min |
| May 3, 4:05 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Newberry, Richland, Saluda | 40 min |
| May 3, 4:19 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Lee, Sumter | 26 min |
| May 3, 4:22 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Kershaw, Lexington, Richland | 23 min |
| May 3, 4:30 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Richland | 15 min |
| May 3, 4:41 PM EDT | Severe Thunderstorm Warning | CAE | Lee, Sumter | 34 min |
| May 3, 4:44 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Lee, Richland, Sumter | 31 min |
| May 3, 4:45 PM EDT | Severe Thunderstorm Warning | ILM | Darlington, Florence | 60 min |
| May 3, 5:14 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Richland, Sumter | 46 min |
| May 3, 5:25 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Williamsburg | 21 min |
| May 3, 5:50 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 55 min |
| May 3, 5:50 PM EDT | Severe Thunderstorm Warning | ILM | Horry, Marion | 40 min |
| May 3, 6:01 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Barnwell | 44 min |
| May 3, 6:13 PM EDT | Severe Thunderstorm Warning | ILM | Georgetown, Horry, Marion, Williamsburg | 32 min |
| May 3, 6:26 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 49 min |
| May 3, 6:43 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 62 min |
| May 3, 6:43 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 32 min |
| May 3, 6:44 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Orangeburg | 46 min |
| May 3, 7:40 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 65 min |
| May 3, 8:26 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 38 min |
| May 3, 8:47 PM EDT | Severe Thunderstorm Warning | ILM | Georgetown | 43 min |
| May 4, 3:44 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood, Laurens | 13 min |
| May 4, 3:45 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Newberry, Richland, Saluda | 45 min |
| May 4, 3:52 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Richland | 41 min |
| May 4, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | Chester, York | 52 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, 4:15 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 25 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, 4:30 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 20 min |
| May 4, 4:38 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick, Saluda | 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, 5:08 PM EDT | Severe Thunderstorm Warning | ILM | Darlington, Marlboro | 52 min |
| May 4, 5:30 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Lexington, Orangeburg | 60 min |
| May 4, 5:57 PM EDT | Severe Thunderstorm Warning | ILM | Darlington, Dillon, Marlboro | 33 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, 6:17 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston, Colleton, Dorchester | 58 min |
| May 4, 6:30 PM EDT | Severe Thunderstorm Warning | ILM | Dillon | 30 min |
| May 4, 6:57 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon | 48 min |
| May 4, 6:59 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 46 min |
| May 4, 7:04 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Williamsburg | 41 min |
| May 4, 7:42 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Georgetown, Marion, Williamsburg | 33 min |
| May 11, 6:24 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Orangeburg | 36 min |
| May 11, 6:33 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 57 min |
| May 11, 7:13 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 47 min |
| May 28, 8:54 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 51 min |
| May 28, 9:28 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville, Pickens, Spartanburg | 47 min |
| Jun 3, 4:31 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 44 min |
| Jun 3, 5:06 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 26 min |
| Jun 5, 3:23 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston, Dorchester | 39 min |
| Jun 7, 2:58 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Union, York | 47 min |
| Jun 9, 7:54 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 36 min |
| Jun 10, 4:48 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry, Richland | 27 min |
| Jun 10, 7:37 PM EDT | Severe Thunderstorm Warning | ILM | Dillon, Horry, Marion | 23 min |
| Jun 10, 7:58 PM EDT | Severe Thunderstorm Warning | ILM | Dillon, Horry, Marion | 32 min |
| Jun 10, 8:19 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Newberry, Richland, Saluda | 41 min |
| Jun 11, 6:59 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Cherokee, Greenville, Laurens, Pickens, Spartanburg and 1 more | 46 min |
| Jun 12, 1:43 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 47 min |
| Jun 12, 2:21 PM EDT | Severe Thunderstorm Warning | CAE | Newberry | 39 min |
| Jun 12, 2:36 PM EDT | Severe Thunderstorm Warning | GSP | Laurens | 19 min |
| Jun 12, 3:34 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Lexington, Newberry, Richland | 26 min |
| Jun 12, 5:04 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 41 min |
| Jun 14, 2:22 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 38 min |
| Jun 14, 3:31 PM EDT | Severe Thunderstorm Warning | GSP | Pickens | 44 min |
| Jun 14, 3:48 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Pickens | 27 min |
| Jun 14, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 26 min |
| Jun 14, 4:00 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg | 45 min |
| Jun 14, 4:04 PM EDT | Severe Thunderstorm Warning | GSP | York | 41 min |
| Jun 14, 5:00 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee | 27 min |
| Jun 14, 9:27 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Orangeburg, Richland, Sumter | 48 min |
| Jun 15, 3:12 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Horry, Marion | 48 min |
| Jun 15, 3:54 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 36 min |
| Jun 15, 4:37 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 38 min |
| Jun 15, 5:59 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Orangeburg | 31 min |
| Jun 15, 6:27 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Orangeburg | 48 min |
| Jun 15, 7:00 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 45 min |
| Jun 15, 7:46 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 59 min |
| Jun 15, 8:02 PM EDT | Severe Thunderstorm Warning | CHS | Charleston, Colleton | 37 min |
| Jun 15, 10:26 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 64 min |
| Jun 19, 4:58 PM EDT | Severe Thunderstorm Warning | ILM | Horry, Marion | 11 min |
| Jun 21, 5:29 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 32 min |
| Jun 30, 4:53 PM EDT | Severe Thunderstorm Warning | GSP | Laurens, Spartanburg | 33 min |
| Jul 7, 11:23 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton, Jasper | 67 min |
| Jul 8, 2:10 AM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Richland, Sumter | 35 min |
| Jul 8, 3:20 AM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Richland, Sumter | 25 min |
| Jul 9, 12:40 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 26 min |
| Jul 9, 4:48 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Lancaster | 27 min |
| Jul 9, 5:56 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Williamsburg | 21 min |
| Jul 9, 7:38 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton | 50 min |
| Jul 12, 9:47 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville | 32 min |
| Jul 12, 10:14 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville, Pickens | 19 min |
| Jul 16, 12:58 PM EDT | Severe Thunderstorm Warning | GSP | Chester, Union | 32 min |
| Jul 17, 2:23 PM EDT | Severe Thunderstorm Warning | ILM | Marlboro | 22 min |
| Jul 17, 3:09 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 66 min |
| Jul 17, 3:11 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 37 min |
| Jul 17, 3:23 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Sumter | 67 min |
| Jul 18, 12:17 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 43 min |
| Jul 18, 2:50 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Orangeburg, Richland, Sumter | 25 min |
| Jul 18, 3:04 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton | 41 min |
| Jul 18, 3:09 PM EDT | Severe Thunderstorm Warning | CHS | Jasper | 55 min |
| Jul 18, 3:58 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Williamsburg | 32 min |
| Jul 18, 4:56 PM EDT | Severe Thunderstorm Warning | ILM | Dillon, Florence, Horry, Marion | 34 min |
| Jul 18, 8:31 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Edgefield, Lexington, Orangeburg, Saluda | 44 min |
| Jul 22, 3:19 PM EDT | Severe Thunderstorm Warning | CHS | Jasper | 41 min |
| Jul 23, 6:32 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 30 min |
| Jul 26, 4:33 PM EDT | Severe Thunderstorm Warning | GSP | York | 20 min |
| Jul 26, 5:45 PM EDT | Severe Thunderstorm Warning | GSP | York | 30 min |
| Jul 28, 5:45 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield | 60 min |
| Jul 28, 6:14 PM EDT | Severe Thunderstorm Warning | ILM | Darlington, Florence | 19 min |
| Jul 28, 6:19 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lee | 56 min |
| Jul 28, 7:14 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Richland, Sumter | 61 min |
| Jul 28, 9:00 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Lexington, Newberry, Richland, Saluda | 26 min |
| Jul 31, 5:04 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 34 min |
| Jul 31, 5:32 PM EDT | Severe Thunderstorm Warning | CAE | Lee | 28 min |
| Jul 31, 6:13 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Orangeburg | 47 min |
| Jul 31, 7:34 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon | 41 min |
| Aug 1, 4:05 PM EDT | Severe Thunderstorm Warning | ILM | Dillon | 25 min |
| Aug 1, 4:29 PM EDT | Severe Thunderstorm Warning | ILM | Dillon, Florence, Marion | 46 min |
| Aug 1, 4:59 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 46 min |
| Aug 2, 8:25 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 65 min |
| Aug 10, 4:20 PM EDT | Severe Thunderstorm Warning | GSP | Chester, York | 20 min |
| Aug 10, 4:30 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield | 45 min |
| Aug 10, 5:52 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Lexington | 38 min |
| Aug 10, 6:09 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 51 min |
| Aug 10, 6:36 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union | 39 min |
| Aug 10, 7:03 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 23 min |
| Aug 10, 7:11 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee | 49 min |
| Aug 10, 7:12 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 48 min |
| Aug 10, 7:19 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 25 min |
| Aug 10, 7:30 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 45 min |
| Aug 10, 7:37 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 41 min |
| Aug 11, 2:22 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 23 min |
| Aug 11, 3:41 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood | 49 min |
| Aug 11, 4:01 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 44 min |
| Aug 11, 4:04 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 41 min |
| Aug 11, 4:42 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 48 min |
| Aug 11, 4:54 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 32 min |
| Aug 11, 4:59 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 32 min |
| Aug 11, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | Greenwood | 46 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee | 43 min |
| Aug 11, 5:19 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville | 41 min |
| Aug 11, 6:18 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee | 25 min |
| Aug 14, 2:13 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 47 min |
| Aug 14, 2:28 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood | 47 min |
| Aug 14, 2:33 PM EDT | Severe Thunderstorm Warning | GSP | York | 42 min |
| Aug 14, 2:47 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville | 43 min |
| Aug 14, 3:04 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 21 min |
| Aug 14, 3:09 PM EDT | Severe Thunderstorm Warning | GSP | Chester, Union | 51 min |
| Aug 14, 3:11 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood | 49 min |
| Aug 14, 3:13 PM EDT | Severe Thunderstorm Warning | GSP | York | 47 min |
| Aug 14, 3:15 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 45 min |
| Aug 14, 3:17 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 28 min |
| Aug 14, 3:18 PM EDT | Severe Thunderstorm Warning | GSP | Laurens, Spartanburg, Union | 42 min |
| Aug 14, 3:22 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Greenville | 38 min |
| Aug 14, 3:33 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson | 25 min |
| Aug 14, 3:56 PM EDT | Severe Thunderstorm Warning | GSP | Chester | 31 min |
| Aug 14, 4:45 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 30 min |
| Aug 17, 4:25 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 50 min |
| Aug 17, 4:48 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Orangeburg | 42 min |
| Aug 17, 8:40 PM EDT | Severe Thunderstorm Warning | CAE | Aiken | 50 min |
| Aug 19, 5:11 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, York | 49 min |
| Aug 19, 5:36 PM EDT | Severe Thunderstorm Warning | GSP | Laurens, Union | 39 min |
| Aug 19, 6:31 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 59 min |
| Aug 20, 4:44 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 46 min |
| Aug 21, 8:09 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Chester, Union | 51 min |
| Aug 25, 6:47 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Pickens | 43 min |
| Aug 25, 7:06 PM EDT | Severe Thunderstorm Warning | GSP | Pickens | 24 min |
| Aug 31, 2:21 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick | 39 min |
| Aug 31, 2:59 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick, Newberry, Saluda | 46 min |
| Aug 31, 3:01 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood, Laurens | 44 min |
| Aug 31, 3:39 PM EDT | Severe Thunderstorm Warning | GSP | Laurens, Spartanburg, Union | 51 min |
| Aug 31, 3:42 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton, Hampton, Jasper | 48 min |
| Aug 31, 4:23 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union, York | 37 min |
| Aug 31, 4:30 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Spartanburg | 45 min |
| Aug 31, 4:53 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, York | 37 min |
| Sep 8, 2:06 PM EDT | Severe Thunderstorm Warning | GSP | Oconee, Pickens | 39 min |
| Sep 8, 2:10 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 50 min |
| Sep 22, 5:53 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Richland, Sumter | 52 min |
| Dec 30, 1:12 PM EST | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, McCormick | 22 min |
| Dec 30, 4:11 PM EST | Severe Thunderstorm Warning | CHS | Colleton | 25 min |
| Dec 30, 4:25 PM EST | Severe Thunderstorm Warning | CAE | Barnwell | 50 min |
| Dec 30, 4:55 PM EST | Severe Thunderstorm Warning | CHS | Berkeley, Charleston, Dorchester | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Richland County24
- Anderson County22
- Spartanburg County20
- Lexington County19
- Newberry County18
- Greenville County18
- Berkeley County16
- Pickens County15
- Laurens County15
- Sumter County15
- Union County14
- Orangeburg County14
- Colleton County14
- Horry County13
- Kershaw County13
- Cherokee County12
- York County12
- Abbeville County12
- Saluda County12
- Dorchester County12
- Jasper County11
- Calhoun County11
- Lee County11
- Beaufort County10
- Lancaster County10
- Oconee County10
- Greenwood County10
- Clarendon County10
- Charleston County10
- Florence County10
- Fairfield County10
- Marion County9
- Chester County8
- Edgefield County8
- Chesterfield County7
- McCormick County7
- Aiken County7
- Williamsburg County7
- Dillon County7
- Barnwell County5
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.