Alert archive / South Carolina / Georgetown County
Weather alerts in Georgetown County, South Carolina, 2021
155 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Georgetown County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 155
- Warnings
- 13
- Watches
- 13
- Advisories
- 41
- Busiest month
- July30 alerts
- Busiest day
- July 8, 20218 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 3 tornado warnings covering Georgetown County in 2021 had a tornado report inside them.
Georgetown County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 3 | 2 | 33% | 1 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, NC: tornado warnings | 12 | 2 | 83% | 5 | 80% | 1 min |
| NWS Wilmington, NC: severe thunderstorm warnings | 46 | 23 | 50% | 57 | 79% | 19 min |
| NWS Wilmington, NC: flash flood warnings | 8 | 5 | 38% | 7 | 86% | 99 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 | Lasted |
|---|---|---|---|
| Dec 31, 11:55 PM EST | Dense Fog Advisory | ILM | 10 hr |
| Jan 13, 10:31 PM EST | Special Weather Statement | ILM | 44 min |
| Feb 4, 9:25 AM EST | River Flood Warning | CHS | 39 days |
| Feb 11, 5:40 AM EST | Dense Fog Advisory | ILM | 3 hr |
| Feb 11, 10:35 PM EST | Dense Fog Advisory | ILM | 4 hr |
| Feb 18, 3:16 AM EST | Flash Flood Watch | ILM | 28 hr |
| Feb 18, 11:00 AM EST | Areal Flood Advisory | ILM | 2 hr |
| Feb 18, 6:12 PM EST | Areal Flood Advisory | ILM | 82 min |
| Feb 22, 11:27 PM EST | Dense Fog Advisory | ILM | 7 hr |
| Feb 27, 7:01 AM EST | Dense Fog Advisory | ILM | 116 min |
| Mar 1, 12:01 PM EST | Special Weather Statement | ILM | 59 min |
| Mar 19, 10:44 AM EDT | River Flood Warning | CHS | 32 days |
| Mar 26, 1:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Mar 28, 5:45 PM EDT | Special Weather Statement | ILM | 45 min |
| Mar 28, 5:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Mar 31, 6:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 9:08 PM EDT | Special Weather Statement | ILM | 52 min |
| Apr 2, 8:21 AM EDT | Freeze Watch | ILM | 6 hr |
| Apr 2, 8:21 AM EDT | Freeze Warning | ILM | 25 hr |
| Apr 10, 8:02 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Apr 20, 8:05 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Apr 21, 3:17 AM EDT | Red Flag Warning | ILM | 16 hr |
| Apr 28, 7:36 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 2, 7:47 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 3, 6:13 PM EDT | Severe Thunderstorm Warning | ILM | 32 min |
| May 3, 6:55 PM EDT | Special Weather Statement | ILM | 65 min |
| May 3, 7:28 PM EDT | Special Weather Statement | ILM | 32 min |
| May 3, 7:59 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 3, 8:47 PM EDT | Severe Thunderstorm Warning | ILM | 43 min |
| May 4, 4:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 4, 4:50 PM EDT | Special Weather Statement | ILM | 40 min |
| May 4, 7:42 PM EDT | Severe Thunderstorm Warning | ILM | 33 min |
| May 4, 8:02 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 4, 8:16 PM EDT | Special Weather Statement | ILM | 44 min |
| May 7, 3:30 PM EDT | Fire Weather Watch | ILM | 15 hr |
| May 9, 7:42 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 11, 7:37 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 12, 7:37 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 13, 7:55 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 22, 7:30 PM EDT | Rip Current Statement | ILM | 25 hr |
| May 27, 8:10 PM EDT | Beach Hazards Statement | ILM | 48 hr |
| May 29, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 2, 7:46 PM EDT | Beach Hazards Statement | ILM | 15 hr |
| Jun 4, 4:10 PM EDT | Special Weather Statement | ILM | 35 min |
| Jun 4, 4:44 PM EDT | Special Weather Statement | ILM | 31 min |
| Jun 5, 2:05 PM EDT | Special Weather Statement | ILM | 25 min |
| Jun 5, 2:40 PM EDT | Special Weather Statement | ILM | 35 min |
| Jun 6, 9:09 AM EDT | Areal Flood Advisory | ILM | 111 min |
| Jun 9, 5:08 PM EDT | Special Weather Statement | ILM | 37 min |
| Jun 9, 8:03 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jun 10, 6:17 PM EDT | Special Weather Statement | ILM | 28 min |
| Jun 15, 12:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 15, 1:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 15, 2:49 PM EDT | Special Weather Statement | ILM | 11 min |
| Jun 15, 4:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 16, 4:12 PM EDT | Special Weather Statement | ILM | 48 min |
| Jun 18, 8:00 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jun 19, 11:08 AM EDT | Tropical Storm Watch | ILM | 42 hr |
| Jun 19, 7:59 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jun 20, 3:35 AM EDT | Flash Flood Watch | ILM | 19 hr |
| Jun 20, 6:28 PM EDT | Special Weather Statement | ILM | 47 min |
| Jun 20, 7:16 PM EDT | Special Weather Statement | ILM | 44 min |
| Jun 20, 7:55 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jun 20, 9:36 PM EDT | Areal Flood Advisory | ILM | 94 min |
| Jun 20, 9:57 PM EDT | Special Weather Statement | ILM | 63 min |
| Jun 21, 8:06 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jun 24, 4:45 AM EDT | Beach Hazards Statement | ILM | 15 hr |
| Jun 24, 1:01 PM EDT | Coastal Flood Advisory | ILM | 11 hr |
| Jun 26, 7:55 PM EDT | Rip Current Statement | ILM | 24 hr |
| Jun 27, 7:25 PM EDT | Rip Current Statement | ILM | 25 hr |
| Jun 28, 2:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 1, 4:54 AM EDT | Beach Hazards Statement | ILM | 15 hr |
| Jul 1, 3:32 PM EDT | Special Weather Statement | ILM | 28 min |
| Jul 1, 8:04 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jul 6, 8:37 PM EDT | Rip Current Statement | ILM | 47 hr |
| Jul 6, 11:16 PM EDT | Tropical Storm Warning | ILM | 45 hr |
| Jul 7, 7:08 PM EDT | Beach Hazards Statement | ILM | 25 hr |
| Jul 8, 1:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 2:01 AM EDT | Tornado Watch | SPC | 7 hr |
| Jul 8, 4:31 AM EDT | Tornado Warning | ILM | 29 min |
| Jul 8, 5:25 AM EDT | Tornado Warning | ILM | 22 min |
| Jul 8, 5:25 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 6:27 AM EDT | Areal Flood Advisory | ILM | 2 hr |
| Jul 8, 7:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 7:46 AM EDT | Tornado Warning | ILM | 29 min |
| Jul 9, 5:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 10, 8:10 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jul 11, 1:59 PM EDT | Special Weather Statement | ILM | 31 min |
| Jul 14, 2:58 PM EDT | Special Weather Statement | ILM | 62 min |
| Jul 15, 3:27 PM EDT | Special Weather Statement | ILM | 33 min |
| Jul 19, 6:14 PM EDT | Special Weather Statement | ILM | 61 min |
| Jul 22, 4:27 PM EDT | Areal Flood Advisory | ILM | 81 min |
| Jul 23, 3:21 PM EDT | Coastal Flood Advisory | ILM | 9 hr |
| Jul 24, 2:51 PM EDT | Coastal Flood Advisory | ILM | 8 hr |
| Jul 28, 6:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 29, 3:16 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 29, 7:55 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Jul 31, 3:13 AM EDT | Heat Advisory | ILM | 16 hr |
| Jul 31, 1:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 3:59 PM EDT | Areal Flood Advisory | ILM | 37 min |
| Jul 31, 5:25 PM EDT | Special Weather Statement | ILM | 65 min |
| Jul 31, 8:26 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Aug 1, 3:47 AM EDT | Heat Advisory | ILM | 15 hr |
| Aug 1, 12:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 1, 9:33 PM EDT | Areal Flood Advisory | ILM | 87 min |
| Aug 1, 10:10 PM EDT | Special Weather Statement | ILM | 50 min |
| Aug 3, 3:20 AM EDT | Flash Flood Watch | ILM | 4 min |
| Aug 3, 3:30 AM EDT | Flash Flood Watch | ILM | 24 hr |
| Aug 3, 12:01 PM EDT | Areal Flood Advisory | ILM | 103 min |
| Aug 6, 12:48 PM EDT | Areal Flood Advisory | ILM | 72 min |
| Aug 19, 7:49 PM EDT | Rip Current Statement | ILM | 48 hr |
| Aug 21, 2:20 PM EDT | Special Weather Statement | ILM | 55 min |
| Aug 21, 3:15 PM EDT | Special Weather Statement | ILM | 45 min |
| Aug 31, 7:33 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| Sep 3, 10:53 AM EDT | Beach Hazards Statement | ILM | 9 hr |
| Sep 7, 5:56 PM EDT | Special Weather Statement | ILM | 34 min |
| Sep 7, 7:42 PM EDT | Rip Current Statement | ILM | 24 hr |
| Sep 8, 8:09 PM EDT | Rip Current Statement | ILM | 48 hr |
| Sep 19, 2:52 AM EDT | Coastal Flood Advisory | ILM | 21 hr |
| Sep 21, 3:12 AM EDT | Flash Flood Watch | ILM | 39 hr |
| Sep 30, 4:49 PM EDT | Special Weather Statement | ILM | 26 min |
| Sep 30, 5:27 PM EDT | Special Weather Statement | ILM | 33 min |
| Sep 30, 5:52 PM EDT | Special Weather Statement | ILM | 38 min |
| Sep 30, 6:04 PM EDT | Special Weather Statement | ILM | 26 min |
| Sep 30, 6:30 PM EDT | Special Weather Statement | ILM | 30 min |
| Sep 30, 7:07 PM EDT | Special Weather Statement | ILM | 23 min |
| Sep 30, 7:30 PM EDT | Special Weather Statement | ILM | 30 min |
| Oct 1, 5:51 PM EDT | Rip Current Statement | ILM | 50 hr |
| Oct 7, 3:51 AM EDT | Coastal Flood Advisory | ILM | 6 hr |
| Oct 8, 3:36 AM EDT | Coastal Flood Advisory | ILM | 9 hr |
| Oct 8, 9:50 AM EDT | Coastal Flood Advisory | ILM | 70 min |
| Oct 9, 4:01 AM EDT | Coastal Flood Advisory | ILM | 10 hr |
| Oct 10, 3:32 AM EDT | Coastal Flood Advisory | ILM | 12 hr |
| Oct 28, 6:36 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 28, 8:17 PM EDT | Rip Current Statement | ILM | 24 hr |
| Nov 3, 2:20 PM EDT | Coastal Flood Advisory | ILM | 22 hr |
| Nov 5, 3:19 AM EDT | Coastal Flood Advisory | ILM | 12 hr |
| Nov 5, 3:03 PM EDT | Coastal Flood Watch | ILM | 14 hr |
| Nov 5, 3:07 PM EDT | Coastal Flood Advisory | ILM | 7 hr |
| Nov 5, 9:45 PM EDT | Coastal Flood Advisory | ILM | 16 hr |
| Nov 6, 3:43 AM EDT | High Surf Advisory | ILM | 57 hr |
| Nov 6, 1:46 PM EDT | Coastal Flood Warning | ILM | 24 hr |
| Nov 6, 1:46 PM EDT | Coastal Flood Advisory | ILM | 12 hr |
| Nov 7, 9:40 PM EST | Coastal Flood Advisory | ILM | 17 hr |
| Nov 15, 2:10 PM EST | Frost Advisory | ILM | 18 hr |
| Nov 22, 4:18 AM EST | Freeze Watch | ILM | 22 hr |
| Nov 23, 2:18 AM EST | Freeze Warning | ILM | 31 hr |
| Dec 4, 4:53 AM EST | Coastal Flood Advisory | ILM | 6 hr |
| Dec 5, 1:24 AM EST | Coastal Flood Advisory | ILM | 10 hr |
| Dec 6, 2:11 AM EST | Dense Fog Advisory | ILM | 8 hr |
| Dec 6, 3:01 AM EST | Coastal Flood Advisory | ILM | 9 hr |
| Dec 8, 10:38 PM EST | Dense Fog Advisory | ILM | 10 hr |
| Dec 18, 3:21 AM EST | Dense Fog Advisory | ILM | 6 hr |
| Dec 30, 12:52 PM EST | Special Weather Statement | ILM | 53 min |
| Dec 30, 3:05 PM EST | Special Weather Statement | ILM | 25 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.