Alert archive / South Carolina / Colleton County
Weather alerts in Colleton County, South Carolina, 2016
140 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 140
- Warnings
- 43
- Watches
- 15
- Advisories
- 34
- Busiest month
- July34 alerts
- Busiest day
- June 17, 201611 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Colleton County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 32 | 27 | 16% | 33 | 82% | 20 min |
| Flash flood warnings | 3 | 3 | 0% | 2 | 0% |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 12 | 2 | 83% | 5 | 20% | 27 min |
| NWS Charleston, SC: severe thunderstorm warnings | 128 | 88 | 31% | 334 | 80% | 22 min |
| NWS Charleston, SC: flash flood warnings | 12 | 10 | 17% | 59 | 66% | 211 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 |
|---|---|---|---|
| Feb 4, 10:27 AM EST | Areal Flood Advisory | CHS | 93 min |
| Feb 4, 11:13 AM EST | River Flood Warning | CHS | 14 days |
| Feb 4, 11:57 AM EST | Areal Flood Advisory | CHS | 2 hr |
| Feb 4, 1:52 PM EST | Areal Flood Advisory | CHS | 83 min |
| Feb 8, 4:09 PM EST | Special Weather Statement | CHS | 51 min |
| Feb 16, 1:41 AM EST | Mesoscale Discussion | SPC | 64 min |
| Feb 16, 2:44 AM EST | Special Weather Statement | CHS | 46 min |
| Feb 16, 3:15 AM EST | Special Weather Statement | CHS | 60 min |
| Feb 23, 4:36 PM EST | Wind Advisory | CHS | 27 hr |
| Feb 24, 6:48 AM EST | Mesoscale Discussion | SPC | 87 min |
| Mar 12, 7:10 AM EST | Dense Fog Advisory | CHS | 2 hr |
| Mar 21, 1:55 PM EDT | Frost Advisory | CHS | 19 hr |
| Mar 26, 3:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 1, 7:26 AM EDT | Tornado Watch | SPC | 12 hr |
| Apr 1, 11:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 1, 2:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 1, 2:48 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 1, 5:40 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 8, 3:49 AM EDT | Freeze Watch | CHS | 35 hr |
| Apr 13, 1:12 AM EDT | Dense Fog Advisory | CHS | 5 hr |
| Apr 22, 3:45 PM EDT | Special Weather Statement | CHS | 15 min |
| Apr 22, 3:55 PM EDT | Special Weather Statement | CHS | 35 min |
| Apr 22, 6:55 PM EDT | Special Weather Statement | CHS | 35 min |
| Apr 27, 6:09 PM EDT | Special Weather Statement | CHS | 36 min |
| Apr 28, 4:04 PM EDT | Special Weather Statement | CHS | 26 min |
| Apr 30, 4:00 AM EDT | Dense Fog Advisory | CHS | 5 hr |
| May 3, 4:04 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 3, 4:05 PM EDT | Severe Thunderstorm Warning | CHS | 40 min |
| May 3, 5:24 PM EDT | Special Weather Statement | CHS | 36 min |
| May 3, 6:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 3, 8:14 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| May 3, 9:16 PM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| May 3, 9:21 PM EDT | Special Weather Statement | CHS | 54 min |
| May 12, 9:51 PM EDT | Severe Thunderstorm Warning | CHS | 39 min |
| May 29, 10:52 AM EDT | Areal Flood Advisory | CHS | 113 min |
| May 29, 12:13 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| May 29, 7:24 PM EDT | Areal Flood Advisory | CHS | 66 min |
| Jun 5, 3:08 PM EDT | Areal Flood Advisory | CHS | 97 min |
| Jun 5, 3:27 PM EDT | Areal Flood Advisory | CHS | 93 min |
| Jun 5, 6:11 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Jun 5, 10:57 PM EDT | Flash Flood Watch | CHS | 30 hr |
| Jun 6, 8:08 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Jun 12, 4:12 PM EDT | Severe Thunderstorm Warning | CHS | 48 min |
| Jun 12, 4:37 PM EDT | Severe Thunderstorm Warning | CHS | 42 min |
| Jun 14, 3:50 AM EDT | Heat Advisory | CHS | 14 hr |
| Jun 15, 5:09 PM EDT | Special Weather Statement | CHS | 51 min |
| Jun 17, 12:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 17, 2:51 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Jun 17, 3:23 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jun 17, 3:36 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Jun 17, 3:44 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jun 17, 3:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 17, 4:08 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jun 17, 4:27 PM EDT | Severe Thunderstorm Warning | CHS | 63 min |
| Jun 17, 4:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jun 17, 4:50 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Jun 28, 4:59 PM EDT | Special Weather Statement | CHS | 61 min |
| Jun 28, 5:13 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Jun 28, 6:25 PM EDT | Areal Flood Advisory | CHS | 65 min |
| Jul 3, 6:20 PM EDT | Special Weather Statement | CHS | 40 min |
| Jul 3, 6:59 PM EDT | Special Weather Statement | CHS | 46 min |
| Jul 3, 7:07 PM EDT | Areal Flood Advisory | CHS | 83 min |
| Jul 4, 5:42 PM EDT | Special Weather Statement | CHS | 48 min |
| Jul 4, 5:53 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jul 4, 6:20 PM EDT | Special Weather Statement | CHS | 40 min |
| Jul 5, 3:13 AM EDT | Heat Advisory | CHS | 15 hr |
| Jul 5, 7:06 PM EDT | Special Weather Statement | CHS | 39 min |
| Jul 6, 3:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 6, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 6, 5:21 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Jul 6, 5:58 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Jul 8, 3:32 AM EDT | Heat Advisory | CHS | 16 hr |
| Jul 8, 11:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 9, 12:53 AM EDT | Severe Thunderstorm Warning | CHS | 52 min |
| Jul 9, 1:56 AM EDT | Special Weather Statement | CHS | 49 min |
| Jul 9, 3:34 AM EDT | Heat Advisory | CHS | 12 hr |
| Jul 9, 11:01 AM EDT | Special Weather Statement | CHS | 29 min |
| Jul 9, 3:52 PM EDT | Severe Thunderstorm Warning | CHS | 53 min |
| Jul 15, 6:34 PM EDT | Special Weather Statement | CHS | 26 min |
| Jul 19, 6:14 PM EDT | Areal Flood Advisory | CHS | 91 min |
| Jul 19, 6:32 PM EDT | Severe Thunderstorm Warning | CHS | 43 min |
| Jul 19, 7:16 PM EDT | Special Weather Statement | CHS | 29 min |
| Jul 19, 7:38 PM EDT | Severe Thunderstorm Warning | CHS | 52 min |
| Jul 19, 8:13 PM EDT | Severe Thunderstorm Warning | CHS | 34 min |
| Jul 20, 3:14 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jul 20, 3:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jul 20, 4:06 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Jul 20, 4:12 PM EDT | Special Weather Statement | CHS | 48 min |
| Jul 20, 5:02 PM EDT | Severe Thunderstorm Warning | CHS | 43 min |
| Jul 21, 2:15 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Jul 21, 3:22 PM EDT | Severe Thunderstorm Warning | CHS | 68 min |
| Jul 21, 4:53 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jul 30, 8:14 PM EDT | Special Weather Statement | CHS | 31 min |
| Aug 3, 5:51 PM EDT | Special Weather Statement | CHS | 24 min |
| Aug 11, 6:46 AM EDT | Areal Flood Advisory | CHS | 89 min |
| Aug 11, 8:53 AM EDT | Areal Flood Advisory | CHS | 52 min |
| Aug 18, 5:22 PM EDT | Special Weather Statement | CHS | 38 min |
| Aug 18, 5:33 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Aug 18, 6:35 PM EDT | Special Weather Statement | CHS | 25 min |
| Aug 19, 10:20 PM EDT | Special Weather Statement | CHS | 25 min |
| Aug 31, 11:41 PM EDT | Tropical Storm Watch | CHS | 6 hr |
| Sep 1, 2:50 AM EDT | Flash Flood Watch | CHS | 37 hr |
| Sep 1, 5:40 AM EDT | Tropical Storm Warning | CHS | 44 hr |
| Sep 2, 5:05 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 7:51 AM EDT | Tornado Watch | SPC | 8 hr |
| Sep 2, 12:10 PM EDT | Areal Flood Advisory | CHS | 110 min |
| Sep 2, 12:24 PM EDT | Special Weather Statement | CHS | 36 min |
| Sep 2, 12:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 1:09 PM EDT | Special Weather Statement | CHS | 66 min |
| Sep 2, 1:56 PM EDT | Areal Flood Advisory | CHS | 64 min |
| Sep 11, 5:13 PM EDT | Special Weather Statement | CHS | 47 min |
| Sep 11, 5:33 PM EDT | Special Weather Statement | CHS | 42 min |
| Sep 14, 2:36 AM EDT | Flash Flood Watch | CHS | 25 hr |
| Sep 14, 3:24 AM EDT | Areal Flood Advisory | CHS | 96 min |
| Sep 14, 2:29 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Sep 29, 9:41 PM EDT | Special Weather Statement | CHS | 49 min |
| Sep 29, 10:18 PM EDT | Special Weather Statement | CHS | 42 min |
| Sep 29, 10:56 PM EDT | Special Weather Statement | CHS | 49 min |
| Oct 6, 5:09 AM EDT | Flash Flood Watch | CHS | 55 hr |
| Oct 6, 5:48 AM EDT | Tropical Storm Watch | CHS | 12 hr |
| Oct 6, 12:28 PM EDT | Tropical Storm Warning | CHS | 50 hr |
| Oct 7, 3:17 PM EDT | Tornado Watch | SPC | 9 hr |
| Oct 7, 3:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Oct 7, 7:53 PM EDT | Flash Flood Warning | CHS | 14 hr |
| Oct 8, 12:20 AM EDT | Flash Flood Warning | CHS | 10 hr |
| Oct 8, 3:54 AM EDT | River Flood Warning | CHS | 13 days |
| Oct 8, 9:42 AM EDT | Flash Flood Warning | CHS | 108 min |
| Oct 8, 10:45 AM EDT | Areal Flood Warning | CHS | 6 hr |
| Oct 8, 11:27 AM EDT | Areal Flood Warning | CHS | 5 hr |
| Oct 12, 2:59 PM EDT | Areal Flood Warning | CHS | 46 hr |
| Oct 21, 4:53 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| Oct 30, 3:34 AM EDT | Dense Fog Advisory | CHS | 6 hr |
| Nov 16, 3:19 AM EST | Dense Fog Advisory | CHS | 7 hr |
| Nov 19, 3:27 PM EST | Freeze Watch | CHS | 24 hr |
| Nov 20, 3:20 PM EST | Freeze Warning | CHS | 17 hr |
| Nov 25, 3:48 AM EST | Dense Fog Advisory | CHS | 6 hr |
| Dec 13, 7:04 PM EST | Dense Fog Advisory | CHS | 6 hr |
| Dec 26, 8:59 PM EST | Dense Fog Advisory | CHS | 14 hr |
| Dec 28, 12:37 AM EST | Dense Fog Advisory | CHS | 3 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 32 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 3 |
| River Flood Warning | 2 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 18 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Tropical Storm Watch | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.