Alert archive / South Carolina / Colleton County
Weather alerts in Colleton County, South Carolina, 2025
145 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Colleton County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 145
- Warnings
- 33
- Watches
- 14
- Advisories
- 46
- Busiest month
- June32 alerts
- Busiest day
- June 8, 20259 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 1 tornado warnings covering Colleton County in 2025 had a tornado report inside them.
Colleton County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 23 | 16 | 30% | 50 | 74% | 29 min |
| Flash flood warnings | 2 | 0 | 100% | 1 | 0% |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 7 | 1 | 86% | 1 | 100% | 1 min |
| NWS Charleston, SC: severe thunderstorm warnings | 107 | 50 | 53% | 243 | 65% | 27 min |
| NWS Charleston, SC: flash flood warnings | 31 | 19 | 39% | 111 | 86% | 56 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 |
|---|---|---|---|
| Jan 8, 2:52 PM EST | Cold Weather Advisory | CHS | 18 hr |
| Jan 10, 2:43 AM EST | Winter Weather Advisory | CHS | 13 hr |
| Jan 19, 2:54 PM EST | Winter Storm Watch | CHS | 24 hr |
| Jan 19, 2:57 PM EST | Cold Weather Advisory | CHS | 4 days |
| Jan 20, 2:34 PM EST | Winter Storm Warning | CHS | 43 hr |
| Jan 21, 9:01 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 23, 2:49 PM EST | Cold Weather Advisory | CHS | 18 hr |
| Feb 2, 2:22 PM EST | Dense Fog Advisory | CHS | 19 hr |
| Feb 3, 9:02 AM EST | Dense Fog Advisory | CHS | 3 hr |
| Feb 8, 3:13 AM EST | Dense Fog Advisory | CHS | 7 hr |
| Feb 11, 8:50 PM EST | Dense Fog Advisory | CHS | 12 hr |
| Feb 12, 6:45 PM EST | Dense Fog Advisory | CHS | 8 hr |
| Feb 15, 3:15 PM EST | Wind Advisory | CHS | 27 hr |
| Feb 16, 7:33 AM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 16, 8:46 AM EST | Special Weather Statement | CHS | 29 min |
| Feb 16, 8:48 AM EST | Mesoscale Discussion | SPC | 117 min |
| Feb 16, 9:14 AM EST | Special Weather Statement | CHS | 91 min |
| Feb 20, 3:03 AM EST | Cold Weather Advisory | CHS | 31 hr |
| Mar 1, 3:29 AM EST | Red Flag Warning | CHS | 17 hr |
| Mar 1, 3:14 PM EST | Freeze Watch | CHS | 24 hr |
| Mar 2, 2:45 PM EST | Freeze Warning | CHS | 17 hr |
| Mar 4, 2:19 PM EST | Wind Advisory | CHS | 24 hr |
| Mar 5, 7:22 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 5, 7:47 AM EST | Tornado Watch | SPC | 7 hr |
| Mar 6, 3:32 AM EST | Frost Advisory | CHS | 28 hr |
| Mar 16, 5:30 AM EDT | Mesoscale Discussion | SPC | 60 min |
| Mar 16, 6:12 AM EDT | Tornado Watch | SPC | 8 hr |
| Mar 16, 9:01 AM EDT | Severe Thunderstorm Warning | CHS | 44 min |
| Mar 16, 9:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Mar 16, 9:39 AM EDT | Special Weather Statement | CHS | 51 min |
| Mar 16, 10:14 AM EDT | Special Weather Statement | CHS | 31 min |
| Mar 16, 10:43 AM EDT | Special Weather Statement | CHS | 47 min |
| Mar 16, 4:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 31, 3:17 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 31, 5:26 PM EDT | Special Weather Statement | CHS | 49 min |
| Mar 31, 5:38 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Mar 31, 6:21 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Apr 1, 11:55 PM EDT | Dense Fog Advisory | CHS | 9 hr |
| Apr 7, 2:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 23, 2:49 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Apr 23, 3:03 PM EDT | Special Weather Statement | CHS | 42 min |
| Apr 23, 3:28 PM EDT | Severe Thunderstorm Warning | CHS | 47 min |
| Apr 23, 4:44 PM EDT | Special Weather Statement | CHS | 31 min |
| Apr 24, 1:55 PM EDT | Special Weather Statement | CHS | 65 min |
| May 8, 1:21 PM EDT | Special Weather Statement | CHS | 39 min |
| May 9, 5:08 AM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| May 9, 6:56 PM EDT | Special Weather Statement | CHS | 34 min |
| May 11, 2:43 AM EDT | Areal Flood Advisory | CHS | 3 hr |
| May 14, 12:23 PM EDT | River Flood Warning | CHS | 8 days |
| May 14, 12:33 PM EDT | Areal Flood Warning | CHS | 3 days |
| May 27, 7:13 PM EDT | Areal Flood Advisory | CHS | 62 min |
| May 27, 8:17 PM EDT | Areal Flood Advisory | CHS | 58 min |
| May 29, 12:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 29, 1:15 PM EDT | Special Weather Statement | CHS | 30 min |
| May 29, 2:04 PM EDT | Areal Flood Advisory | CHS | 116 min |
| May 29, 4:24 PM EDT | Special Weather Statement | CHS | 51 min |
| May 30, 3:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 30, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 30, 6:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 5, 12:45 AM EDT | Areal Flood Advisory | CHS | 90 min |
| Jun 5, 5:25 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jun 7, 8:55 PM EDT | Severe Thunderstorm Warning | CHS | 35 min |
| Jun 7, 9:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 7, 9:49 PM EDT | Special Weather Statement | CHS | 41 min |
| Jun 8, 10:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 11:26 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 8, 12:00 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Jun 8, 12:10 PM EDT | Severe Thunderstorm Warning | CHS | 65 min |
| Jun 8, 12:48 PM EDT | Severe Thunderstorm Warning | CHS | 33 min |
| Jun 8, 1:16 PM EDT | Severe Thunderstorm Warning | CHS | 44 min |
| Jun 9, 6:01 PM EDT | Special Weather Statement | CHS | 29 min |
| Jun 10, 9:26 AM EDT | Severe Thunderstorm Warning | CHS | 49 min |
| Jun 10, 9:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 10, 9:39 AM EDT | Severe Thunderstorm Warning | CHS | 51 min |
| Jun 10, 9:43 AM EDT | Tornado Warning | CHS | 19 min |
| Jun 10, 10:04 AM EDT | Severe Thunderstorm Warning | CHS | 41 min |
| Jun 11, 6:04 PM EDT | Special Weather Statement | CHS | 41 min |
| Jun 13, 4:18 PM EDT | Special Weather Statement | CHS | 27 min |
| Jun 14, 3:31 PM EDT | Special Weather Statement | CHS | 29 min |
| Jun 15, 5:22 PM EDT | Special Weather Statement | CHS | 23 min |
| Jun 18, 6:57 PM EDT | Special Weather Statement | CHS | 33 min |
| Jun 23, 3:09 PM EDT | Heat Advisory | CHS | 29 hr |
| Jun 25, 10:26 AM EDT | Heat Advisory | CHS | 10 hr |
| Jun 25, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 25, 8:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 25, 8:38 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jun 25, 9:27 PM EDT | Special Weather Statement | CHS | 33 min |
| Jun 25, 9:33 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Jun 25, 10:04 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Jun 25, 10:26 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Jun 25, 11:17 PM EDT | Areal Flood Advisory | CHS | 43 min |
| Jul 9, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 6:03 PM EDT | Special Weather Statement | CHS | 42 min |
| Jul 10, 2:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 4:20 PM EDT | Special Weather Statement | CHS | 40 min |
| Jul 11, 7:21 PM EDT | Severe Thunderstorm Warning | CHS | 45 min |
| Jul 14, 4:26 PM EDT | Special Weather Statement | CHS | 34 min |
| Jul 14, 5:02 PM EDT | Special Weather Statement | CHS | 28 min |
| Jul 19, 1:49 AM EDT | Heat Advisory | CHS | 18 hr |
| Jul 19, 8:04 PM EDT | Heat Advisory | CHS | 24 hr |
| Jul 20, 1:19 PM EDT | Heat Advisory | CHS | 31 hr |
| Jul 20, 3:46 PM EDT | Special Weather Statement | CHS | 29 min |
| Jul 20, 4:39 PM EDT | Special Weather Statement | CHS | 36 min |
| Jul 21, 8:18 PM EDT | Severe Thunderstorm Warning | CHS | 45 min |
| Jul 22, 2:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 2:56 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 22, 3:43 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Jul 22, 4:01 PM EDT | Special Weather Statement | CHS | 44 min |
| Jul 25, 1:07 PM EDT | Heat Advisory | CHS | 3 days |
| Jul 25, 1:07 PM EDT | Extreme Heat Watch | CHS | 51 hr |
| Jul 26, 1:03 PM EDT | Extreme Heat Warning | CHS | 55 hr |
| Jul 28, 1:16 AM EDT | Heat Advisory | CHS | 41 hr |
| Jul 29, 2:50 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 29, 3:19 PM EDT | Special Weather Statement | CHS | 26 min |
| Jul 30, 2:17 AM EDT | Areal Flood Advisory | CHS | 118 min |
| Jul 30, 3:12 AM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 30, 1:20 PM EDT | Heat Advisory | CHS | 31 hr |
| Jul 31, 1:13 PM EDT | Heat Advisory | CHS | 29 hr |
| Aug 2, 7:53 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Aug 5, 3:03 PM EDT | Special Weather Statement | CHS | 27 min |
| Aug 5, 5:17 PM EDT | Areal Flood Advisory | CHS | 73 min |
| Aug 5, 5:28 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Aug 5, 5:48 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Aug 5, 6:05 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Aug 5, 7:03 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Aug 5, 8:19 PM EDT | Flash Flood Warning | CHS | 4 hr |
| Aug 10, 12:46 AM EDT | Flood Watch | CHS | 41 hr |
| Aug 11, 8:10 AM EDT | Special Weather Statement | CHS | 35 min |
| Aug 15, 2:43 PM EDT | Special Weather Statement | CHS | 47 min |
| Aug 15, 3:23 PM EDT | Special Weather Statement | CHS | 52 min |
| Aug 17, 4:21 PM EDT | Special Weather Statement | CHS | 24 min |
| Aug 21, 1:02 PM EDT | Flood Watch | CHS | 60 hr |
| Aug 22, 12:31 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Aug 22, 3:48 PM EDT | Areal Flood Advisory | CHS | 18 min |
| Aug 22, 4:06 PM EDT | Flash Flood Warning | CHS | 3 hr |
| Aug 23, 10:12 AM EDT | Areal Flood Advisory | CHS | 2 hr |
| Nov 9, 6:46 AM EST | Freeze Watch | CHS | 5 hr |
| Nov 9, 12:09 PM EST | Freeze Warning | CHS | 45 hr |
| Nov 9, 11:58 PM EST | Cold Weather Advisory | CHS | 32 hr |
| Nov 24, 1:09 AM EST | Dense Fog Advisory | CHS | 8 hr |
| Dec 12, 12:41 PM EST | Cold Weather Advisory | CHS | 69 hr |
| Dec 12, 12:41 PM EST | Extreme Cold Watch | CHS | 36 hr |
| Dec 15, 11:32 AM EST | Cold Weather Advisory | CHS | 21 hr |
| Dec 19, 6:47 AM EST | Special Weather Statement | CHS | 43 min |
| Dec 21, 5:57 AM EST | Dense Fog Advisory | CHS | 4 hr |
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 archive20242026
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.