Alert archive / South Carolina / Hampton County
Weather alerts in Hampton County, South Carolina, 2022
125 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hampton County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 125
- Warnings
- 36
- Watches
- 17
- Advisories
- 24
- Busiest month
- July20 alerts
- Busiest day
- April 5, 20228 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Hampton County in 2022 had a tornado report inside them; 0 of 3 tornado reports fell inside a warning.
Hampton County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 3 | 0% | |
| Severe thunderstorm warnings | 26 | 15 | 42% | 26 | 85% | 24 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 16 | 8 | 50% | 33 | 79% | 27 min |
| NWS Charleston, SC: severe thunderstorm warnings | 130 | 75 | 42% | 389 | 70% | 21 min |
| NWS Charleston, SC: flash flood warnings | 7 | 4 | 43% | 13 | 62% | 356 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 2, 4:10 PM EST | Wind Advisory | CHS | 23 hr |
| Jan 2, 5:01 PM EST | Tornado Watch | SPC | 5 hr |
| Jan 2, 6:52 PM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 2, 9:53 PM EST | Tornado Watch | SPC | 5 hr |
| Jan 3, 12:17 AM EST | Mesoscale Discussion | SPC | 118 min |
| Jan 20, 3:29 PM EST | Winter Weather Advisory | CHS | 40 hr |
| Feb 9, 2:07 AM EST | Freezing Fog Advisory | CHS | 6 hr |
| Mar 11, 6:52 PM EST | Wind Advisory | CHS | 23 hr |
| Mar 12, 3:47 AM EST | Mesoscale Discussion | SPC | 118 min |
| Mar 12, 3:55 AM EST | Freeze Warning | CHS | 30 hr |
| Mar 13, 3:40 AM EDT | Freeze Watch | CHS | 12 hr |
| Mar 13, 3:11 PM EDT | Freeze Warning | CHS | 18 hr |
| Mar 16, 11:19 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Mar 16, 4:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 16, 8:34 PM EDT | Special Weather Statement | CHS | 41 min |
| Mar 17, 5:42 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| Mar 19, 3:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Mar 22, 10:04 PM EDT | River Flood Warning | CHS | 38 days |
| Mar 25, 3:32 PM EDT | Fire Weather Watch | CHS | 12 hr |
| Mar 26, 3:25 AM EDT | Red Flag Warning | CHS | 17 hr |
| Mar 31, 11:43 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 31, 8:25 PM EDT | Special Weather Statement | CHS | 35 min |
| Apr 5, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 5, 3:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 5, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 5, 4:31 PM EDT | Severe Thunderstorm Warning | CHS | 47 min |
| Apr 5, 4:52 PM EDT | Tornado Warning | CHS | 23 min |
| Apr 5, 6:12 PM EDT | Severe Thunderstorm Warning | CHS | 48 min |
| Apr 5, 6:27 PM EDT | Tornado Warning | CHS | 48 min |
| Apr 5, 6:41 PM EDT | Severe Thunderstorm Warning | CHS | 49 min |
| Apr 6, 4:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 6, 4:21 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 6, 5:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Apr 6, 5:54 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| Apr 6, 6:45 PM EDT | Severe Thunderstorm Warning | CHS | 13 min |
| Apr 6, 9:31 PM EDT | Severe Thunderstorm Warning | CHS | 44 min |
| Apr 6, 10:13 PM EDT | Special Weather Statement | CHS | 47 min |
| Apr 9, 5:02 PM EDT | Frost Advisory | CHS | 15 hr |
| Apr 9, 9:37 PM EDT | River Flood Warning | CHS | 20 days |
| Apr 17, 6:25 PM EDT | Special Weather Statement | CHS | 20 min |
| May 1, 7:06 PM EDT | Special Weather Statement | CHS | 24 min |
| May 3, 6:02 PM EDT | Severe Thunderstorm Warning | CHS | 58 min |
| May 6, 3:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 6, 3:47 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 6, 4:49 PM EDT | Severe Thunderstorm Warning | CHS | 30 min |
| May 6, 5:17 PM EDT | Special Weather Statement | CHS | 28 min |
| May 6, 5:41 PM EDT | Severe Thunderstorm Warning | CHS | 29 min |
| May 14, 4:51 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| May 15, 6:00 PM EDT | Special Weather Statement | CHS | 30 min |
| May 22, 5:33 PM EDT | Severe Thunderstorm Warning | CHS | 42 min |
| May 22, 6:03 PM EDT | Special Weather Statement | CHS | 27 min |
| May 23, 2:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 23, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 23, 4:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 5:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| May 23, 6:26 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| May 23, 7:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 4:50 PM EDT | Special Weather Statement | CHS | 40 min |
| Jun 3, 5:24 PM EDT | Severe Thunderstorm Warning | CHS | 35 min |
| Jun 8, 4:42 PM EDT | Special Weather Statement | CHS | 33 min |
| Jun 8, 5:10 PM EDT | Severe Thunderstorm Warning | CHS | 37 min |
| Jun 13, 3:28 PM EDT | Heat Advisory | CHS | 28 hr |
| Jun 14, 11:21 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 14, 11:59 AM EDT | Severe Thunderstorm Warning | CHS | 46 min |
| Jun 14, 12:17 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 3:30 AM EDT | Heat Advisory | CHS | 16 hr |
| Jun 16, 4:00 PM EDT | Heat Advisory | CHS | 26 hr |
| Jun 17, 6:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 7:49 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Jun 17, 8:45 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Jul 3, 5:42 PM EDT | Severe Thunderstorm Warning | CHS | 63 min |
| Jul 7, 3:15 AM EDT | Heat Advisory | CHS | 14 hr |
| Jul 8, 4:19 PM EDT | Special Weather Statement | CHS | 41 min |
| Jul 8, 4:23 PM EDT | Severe Thunderstorm Warning | CHS | 52 min |
| Jul 9, 3:33 PM EDT | Special Weather Statement | CHS | 42 min |
| Jul 10, 3:30 AM EDT | Flood Watch | CHS | 18 hr |
| Jul 13, 1:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 13, 2:56 PM EDT | Special Weather Statement | CHS | 34 min |
| Jul 13, 3:13 PM EDT | Special Weather Statement | CHS | 17 min |
| Jul 13, 3:24 PM EDT | Severe Thunderstorm Warning | CHS | 51 min |
| Jul 14, 7:52 PM EDT | Special Weather Statement | CHS | 23 min |
| Jul 14, 8:21 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 19, 6:04 PM EDT | Special Weather Statement | CHS | 41 min |
| Jul 19, 6:13 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Jul 20, 1:34 PM EDT | Special Weather Statement | CHS | 26 min |
| Jul 20, 1:56 PM EDT | Special Weather Statement | CHS | 34 min |
| Jul 20, 1:58 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Jul 21, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 22, 9:21 PM EDT | Special Weather Statement | CHS | 24 min |
| Jul 24, 4:17 PM EDT | Special Weather Statement | CHS | 43 min |
| Aug 3, 3:14 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Aug 10, 8:20 PM EDT | Special Weather Statement | CHS | 40 min |
| Aug 10, 8:56 PM EDT | Special Weather Statement | CHS | 34 min |
| Aug 11, 4:15 PM EDT | Special Weather Statement | CHS | 30 min |
| Aug 12, 4:06 PM EDT | Special Weather Statement | CHS | 24 min |
| Aug 12, 4:24 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| Aug 15, 7:49 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 18, 5:25 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Aug 19, 4:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 19, 4:48 PM EDT | Special Weather Statement | CHS | 42 min |
| Aug 19, 6:18 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Aug 21, 3:22 PM EDT | Areal Flood Advisory | CHS | 88 min |
| Aug 25, 8:09 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Sep 1, 1:51 PM EDT | Areal Flood Advisory | CHS | 84 min |
| Sep 1, 2:26 PM EDT | Special Weather Statement | CHS | 34 min |
| Sep 27, 11:12 AM EDT | Tropical Storm Watch | CHS | 66 hr |
| Sep 27, 11:16 PM EDT | Tropical Storm Warning | CHS | 69 hr |
| Sep 28, 3:31 PM EDT | Flood Watch | CHS | 52 hr |
| Oct 19, 11:05 AM EDT | Frost Advisory | CHS | 22 hr |
| Oct 19, 3:23 PM EDT | Freeze Warning | CHS | 18 hr |
| Oct 21, 3:03 AM EDT | Frost Advisory | CHS | 6 hr |
| Nov 1, 4:59 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| Nov 10, 12:47 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 10, 5:48 PM EST | Mesoscale Discussion | SPC | 57 min |
| Nov 10, 6:28 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 10, 10:43 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 11, 12:42 AM EST | Tornado Watch | SPC | 8 hr |
| Nov 11, 1:17 AM EST | Special Weather Statement | CHS | 28 min |
| Nov 16, 2:50 PM EST | Freeze Watch | CHS | 12 hr |
| Nov 17, 2:51 AM EST | Freeze Warning | CHS | 29 hr |
| Dec 7, 3:03 AM EST | Dense Fog Advisory | CHS | 6 hr |
| Dec 22, 3:06 PM EST | Wind Advisory | CHS | 27 hr |
| Dec 22, 3:10 PM EST | Wind Chill Advisory | CHS | 46 hr |
| Dec 24, 3:18 PM EST | Wind Chill Advisory | CHS | 19 hr |
| Dec 31, 4:26 AM EST | Dense Fog Advisory | CHS | 5 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 | 26 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 27 |
| Flooding | |
| River Flood Warning | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Freezing Fog Advisory | 1 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.