Alert archive / Georgia / Chatham County
Weather alerts in Chatham County, Georgia, 2026
113 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Chatham County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 113
- Warnings
- 24
- Watches
- 7
- Advisories
- 37
- Busiest month
- July35 alerts
- Busiest day
- June 14, 20266 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Chatham County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 6 | 57% | 28 | 36% | 15 min |
| Flash flood warnings | 3 | 2 | 33% | 8 | 88% | 24 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 3 | 1 | 67% | 4 | 25% | 1 min |
| NWS Charleston, SC: severe thunderstorm warnings | 96 | 48 | 50% | 376 | 48% | 19 min |
| NWS Charleston, SC: flash flood warnings | 19 | 11 | 42% | 63 | 70% | 52 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 21, 1:44 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 8, 5:38 PM EDT | Areal Flood Advisory | CHS | 77 min |
| Mar 12, 7:14 AM EDT | Tornado Watch | SPC | 5 hr |
| Mar 12, 8:50 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Mar 16, 7:59 AM EDT | Tornado Watch | SPC | 7 hr |
| Mar 16, 12:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 11, 2:10 PM EDT | Rip Current Statement | CHS | 30 hr |
| May 27, 4:56 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| May 27, 5:12 PM EDT | Flash Flood Warning | CHS | 3 hr |
| May 28, 2:39 PM EDT | Areal Flood Advisory | CHS | 66 min |
| May 30, 7:32 PM EDT | Areal Flood Advisory | CHS | 73 min |
| May 30, 8:34 PM EDT | Areal Flood Advisory | CHS | 56 min |
| May 30, 10:27 PM EDT | Areal Flood Advisory | CHS | 96 min |
| Jun 2, 2:17 PM EDT | Rip Current Statement | CHS | 30 hr |
| Jun 12, 4:23 PM EDT | Special Weather Statement | CHS | 37 min |
| Jun 12, 4:58 PM EDT | Special Weather Statement | CHS | 32 min |
| Jun 13, 1:46 AM EDT | Heat Advisory | CHS | 15 hr |
| Jun 14, 2:14 AM EDT | Heat Advisory | CHS | 14 hr |
| Jun 14, 2:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:17 PM EDT | Special Weather Statement | CHS | 28 min |
| Jun 14, 3:31 PM EDT | Severe Thunderstorm Warning | CHS | 51 min |
| Jun 14, 6:14 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jun 14, 6:48 PM EDT | Special Weather Statement | CHS | 42 min |
| Jun 18, 3:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 18, 3:52 PM EDT | Severe Thunderstorm Warning | CHS | 38 min |
| Jun 18, 4:08 PM EDT | Special Weather Statement | CHS | 52 min |
| Jun 18, 6:20 PM EDT | Special Weather Statement | CHS | 40 min |
| Jun 27, 5:29 PM EDT | Special Weather Statement | CHS | 31 min |
| Jun 28, 2:12 AM EDT | Heat Advisory | CHS | 16 hr |
| Jun 29, 2:09 AM EDT | Heat Advisory | CHS | 16 hr |
| Jun 29, 2:58 PM EDT | Special Weather Statement | CHS | 47 min |
| Jun 29, 3:09 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 5, 2:10 AM EDT | Heat Advisory | CHS | 16 hr |
| Jul 5, 3:35 PM EDT | Severe Thunderstorm Warning | CHS | 40 min |
| Jul 5, 3:49 PM EDT | Special Weather Statement | CHS | 41 min |
| Jul 5, 4:18 PM EDT | Severe Thunderstorm Warning | CHS | 41 min |
| Jul 6, 1:36 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 7, 12:56 PM EDT | Extreme Heat Watch | CHS | 13 hr |
| Jul 7, 4:42 PM EDT | Special Weather Statement | CHS | 33 min |
| Jul 8, 2:07 AM EDT | Extreme Heat Warning | CHS | 17 hr |
| Jul 8, 2:39 PM EDT | Extreme Heat Warning | CHS | 28 hr |
| Jul 9, 2:20 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 10, 2:16 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 11, 2:42 PM EDT | Heat Advisory | CHS | 28 hr |
| Jul 11, 9:03 PM EDT | Special Weather Statement | CHS | 27 min |
| Jul 11, 9:38 PM EDT | Areal Flood Advisory | CHS | 52 min |
| Jul 11, 9:47 PM EDT | Special Weather Statement | CHS | 28 min |
| Jul 12, 1:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 6:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 12, 7:33 PM EDT | Severe Thunderstorm Warning | CHS | 42 min |
| Jul 14, 2:10 PM EDT | Coastal Flood Advisory | CHS | 8 hr |
| Jul 14, 4:22 PM EDT | Areal Flood Advisory | CHS | 83 min |
| Jul 14, 4:55 PM EDT | Flash Flood Warning | CHS | 2 hr |
| Jul 15, 6:54 PM EDT | Areal Flood Advisory | CHS | 37 min |
| Jul 18, 2:16 AM EDT | Heat Advisory | CHS | 17 hr |
| Jul 24, 2:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 4:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 2:16 AM EDT | Heat Advisory | CHS | 17 hr |
| Jul 27, 2:13 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 27, 2:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 27, 4:08 PM EDT | Areal Flood Advisory | CHS | 40 min |
| Jul 28, 2:19 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 29, 2:19 AM EDT | Extreme Heat Warning | CHS | 17 hr |
| Jul 29, 4:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 8:34 PM EDT | Special Weather Statement | CHS | 26 min |
| Jul 29, 9:51 PM EDT | Special Weather Statement | CHS | 24 min |
| Jul 29, 10:15 PM EDT | Special Weather Statement | CHS | 30 min |
| Aug 10, 1:51 PM EDT | Heat Advisory | CHS | 30 hr |
| Aug 10, 5:41 PM EDT | Special Weather Statement | CHS | 49 min |
| Aug 10, 5:55 PM EDT | Severe Thunderstorm Warning | CHS | 50 min |
| Aug 10, 6:21 PM EDT | Severe Thunderstorm Warning | CHS | 40 min |
| Aug 11, 1:59 PM EDT | Heat Advisory | CHS | 29 hr |
| Aug 11, 5:48 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Aug 12, 2:15 AM EDT | Extreme Heat Watch | CHS | 11 hr |
| Aug 12, 1:30 PM EDT | Extreme Heat Warning | CHS | 55 hr |
| Aug 13, 1:48 AM EDT | Extreme Heat Watch | CHS | 12 hr |
| Aug 13, 3:56 PM EDT | Special Weather Statement | CHS | 34 min |
| Aug 13, 5:28 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Aug 13, 5:49 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Aug 14, 2:00 AM EDT | Extreme Heat Watch | CHS | 11 hr |
| Aug 14, 12:49 PM EDT | Extreme Heat Warning | CHS | 31 hr |
| Aug 15, 12:26 PM EDT | Heat Advisory | CHS | 32 hr |
| Aug 16, 2:11 PM EDT | Heat Advisory | CHS | 30 hr |
| Aug 16, 2:11 PM EDT | Extreme Heat Warning | CHS | 30 hr |
| Aug 17, 1:47 AM EDT | Extreme Heat Watch | CHS | 11 hr |
| Aug 17, 1:16 PM EDT | Extreme Heat Warning | CHS | 31 hr |
| Aug 18, 2:18 PM EDT | Heat Advisory | CHS | 30 hr |
| Aug 19, 2:18 PM EDT | Heat Advisory | CHS | 30 hr |
| Aug 21, 2:04 AM EDT | Heat Advisory | CHS | 17 hr |
| Aug 23, 1:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 24, 12:53 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 24, 2:48 PM EDT | Special Weather Statement | CHS | 27 min |
| Aug 24, 3:17 PM EDT | Special Weather Statement | CHS | 28 min |
| Aug 24, 3:36 PM EDT | Severe Thunderstorm Warning | CHS | 29 min |
| Aug 25, 12:14 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 25, 4:30 PM EDT | Special Weather Statement | CHS | 45 min |
| Aug 25, 5:18 PM EDT | Special Weather Statement | CHS | 27 min |
| Aug 25, 5:53 PM EDT | Areal Flood Advisory | CHS | 97 min |
| Aug 25, 6:02 PM EDT | Severe Thunderstorm Warning | CHS | 43 min |
| Aug 26, 2:43 PM EDT | Special Weather Statement | CHS | 47 min |
| Aug 28, 2:34 PM EDT | Areal Flood Advisory | CHS | 82 min |
| Aug 30, 10:02 AM EDT | Areal Flood Advisory | CHS | 70 min |
| Sep 4, 1:54 PM EDT | Heat Advisory | CHS | 30 hr |
| Sep 6, 1:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 6, 3:38 PM EDT | Flash Flood Warning | CHS | 76 min |
| Sep 6, 4:00 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Sep 6, 4:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Sep 7, 2:28 PM EDT | Rip Current Statement | CHS | 30 hr |
| Sep 8, 6:55 AM EDT | Coastal Flood Advisory | CHS | 14 hr |
| Sep 9, 2:22 AM EDT | Rip Current Statement | CHS | 18 hr |
| Sep 14, 2:06 PM EDT | Rip Current Statement | CHS | 54 hr |
| Sep 23, 1:01 PM EDT | Rip Current Statement | CHS | 31 hr |
| Sep 27, 2:23 AM EDT | Coastal Flood Advisory | CHS | 9 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 | 14 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 22 |
| Flooding | |
| Flash Flood Warning | 3 |
| Areal Flood Advisory | 13 |
| Heat | |
| Extreme Heat Warning | 7 |
| Extreme Heat Watch | 5 |
| Heat Advisory | 21 |
| Coast and beach | |
| Coastal Flood Advisory | 3 |
| Rip Current Statement | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.