Alert archive / Georgia / Henry County
Weather alerts in Henry County, Georgia, 2024
119 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Henry County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 119
- Warnings
- 37
- Watches
- 12
- Advisories
- 32
- Busiest month
- July25 alerts
- Busiest day
- July 31, 202411 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Henry County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 21 | 18 | 14% | 11 | 91% | 28 min |
| Flash flood warnings | 8 | 7 | 13% | 5 | 100% | 312 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Atlanta, GA: tornado warnings | 39 | 8 | 79% | 23 | 39% | 9 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 298 | 172 | 42% | 901 | 62% | 20 min |
| NWS Atlanta, GA: flash flood warnings | 74 | 39 | 47% | 147 | 66% | 167 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, 5:30 AM EST | Wind Advisory | FFC | 44 hr |
| Jan 8, 10:44 AM EST | Flood Watch | FFC | 28 hr |
| Jan 9, 8:01 AM EST | Areal Flood Warning | FFC | 6 hr |
| Jan 9, 8:46 AM EST | Flash Flood Warning | FFC | 6 hr |
| Jan 9, 10:03 AM EST | Areal Flood Warning | FFC | 6 hr |
| Jan 10, 5:51 AM EST | River Flood Warning | FFC | 9 hr |
| Jan 11, 3:15 AM EST | Wind Advisory | FFC | 46 hr |
| Jan 15, 7:52 PM EST | Wind Chill Advisory | FFC | 38 hr |
| Jan 18, 7:50 PM EST | Wind Chill Advisory | FFC | 40 hr |
| Jan 19, 2:38 PM EST | Wind Chill Advisory | FFC | 43 hr |
| Jan 23, 2:25 PM EST | Flood Watch | FFC | 4 days |
| Jan 24, 5:42 PM EST | Dense Fog Advisory | FFC | 5 hr |
| Jan 25, 5:58 PM EST | Special Weather Statement | FFC | 32 min |
| Jan 25, 6:32 PM EST | Special Weather Statement | FFC | 28 min |
| Jan 27, 9:18 PM EST | Special Weather Statement | FFC | 27 min |
| Feb 4, 2:51 AM EST | Wind Advisory | FFC | 22 hr |
| Feb 11, 11:02 AM EST | Flood Watch | FFC | 32 hr |
| Feb 12, 3:17 AM EST | Flash Flood Warning | FFC | 6 hr |
| Feb 12, 2:29 PM EST | Wind Advisory | FFC | 22 hr |
| Feb 24, 3:40 AM EST | Wind Advisory | FFC | 15 hr |
| Feb 27, 2:05 PM EST | Wind Advisory | FFC | 32 hr |
| Feb 28, 2:59 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 28, 3:26 PM EST | Severe Thunderstorm Warning | FFC | 49 min |
| Feb 28, 3:55 PM EST | Severe Thunderstorm Warning | FFC | 50 min |
| Feb 28, 4:12 PM EST | Severe Thunderstorm Warning | FFC | 48 min |
| Mar 2, 1:25 AM EST | Dense Fog Advisory | FFC | 9 hr |
| Mar 2, 11:51 PM EST | Dense Fog Advisory | FFC | 9 hr |
| Mar 3, 9:04 AM EST | Dense Fog Advisory | FFC | 2 hr |
| Mar 6, 3:33 AM EST | Flash Flood Warning | FFC | 6 hr |
| Mar 7, 2:58 AM EST | Flood Watch | FFC | 57 hr |
| Mar 10, 3:52 AM EDT | Freeze Warning | FFC | 29 hr |
| Mar 11, 2:15 PM EDT | Frost Advisory | FFC | 18 hr |
| Mar 17, 4:50 AM EDT | Freeze Watch | FFC | 22 hr |
| Mar 18, 3:04 AM EDT | Freeze Warning | FFC | 30 hr |
| Apr 2, 7:57 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 3, 1:17 AM EDT | Flash Flood Warning | FFC | 6 hr |
| Apr 3, 2:12 AM EDT | Special Weather Statement | FFC | 48 min |
| Apr 4, 3:30 AM EDT | Wind Advisory | FFC | 17 hr |
| Apr 10, 9:49 PM EDT | Special Weather Statement | FFC | 86 min |
| Apr 10, 10:27 PM EDT | Wind Advisory | FFC | 22 hr |
| Apr 12, 3:47 AM EDT | Wind Advisory | FFC | 16 hr |
| Apr 19, 4:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 4:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 1:16 AM EDT | Dense Fog Advisory | FFC | 9 hr |
| May 9, 5:45 AM EDT | Tornado Watch | SPC | 9 hr |
| May 9, 8:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| May 25, 11:15 AM EDT | Special Weather Statement | FFC | 30 min |
| May 25, 11:50 AM EDT | Special Weather Statement | FFC | 40 min |
| May 27, 6:13 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 7:13 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 7:32 AM EDT | Special Weather Statement | FFC | 28 min |
| May 27, 8:00 AM EDT | Special Weather Statement | FFC | 30 min |
| May 27, 8:27 AM EDT | Severe Thunderstorm Warning | FFC | 48 min |
| May 27, 9:09 AM EDT | Severe Thunderstorm Warning | FFC | 36 min |
| May 27, 6:01 PM EDT | Special Weather Statement | FFC | 44 min |
| May 27, 6:20 PM EDT | Severe Thunderstorm Warning | FFC | 40 min |
| Jun 6, 12:45 AM EDT | Special Weather Statement | FFC | 30 min |
| Jun 6, 1:17 AM EDT | Special Weather Statement | FFC | 28 min |
| Jun 9, 11:05 PM EDT | Special Weather Statement | FFC | 25 min |
| Jun 10, 2:55 AM EDT | Special Weather Statement | FFC | 35 min |
| Jun 10, 3:24 AM EDT | Special Weather Statement | FFC | 36 min |
| Jul 3, 3:31 AM EDT | Heat Advisory | FFC | 39 hr |
| Jul 4, 2:07 PM EDT | Heat Advisory | FFC | 30 hr |
| Jul 5, 2:15 PM EDT | Heat Advisory | FFC | 30 hr |
| Jul 5, 4:44 PM EDT | Special Weather Statement | FFC | 31 min |
| Jul 7, 10:45 PM EDT | Special Weather Statement | FFC | 30 min |
| Jul 9, 3:08 AM EDT | Heat Advisory | FFC | 17 hr |
| Jul 18, 4:24 PM EDT | Special Weather Statement | FFC | 36 min |
| Jul 23, 9:16 PM EDT | Special Weather Statement | FFC | 29 min |
| Jul 23, 9:27 PM EDT | Severe Thunderstorm Warning | FFC | 33 min |
| Jul 29, 3:10 PM EDT | Special Weather Statement | FFC | 35 min |
| Jul 29, 6:46 PM EDT | Severe Thunderstorm Warning | FFC | 44 min |
| Jul 29, 8:44 PM EDT | Severe Thunderstorm Warning | FFC | 46 min |
| Jul 30, 2:28 PM EDT | Heat Advisory | FFC | 30 hr |
| Jul 30, 7:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 8:45 PM EDT | Special Weather Statement | FFC | 30 min |
| Jul 30, 8:56 PM EDT | Severe Thunderstorm Warning | FFC | 32 min |
| Jul 30, 9:15 PM EDT | Severe Thunderstorm Warning | FFC | 45 min |
| Jul 30, 9:28 PM EDT | Severe Thunderstorm Warning | FFC | 35 min |
| Jul 30, 9:33 PM EDT | Special Weather Statement | FFC | 27 min |
| Jul 31, 2:25 PM EDT | Heat Advisory | FFC | 31 hr |
| Jul 31, 3:16 PM EDT | Special Weather Statement | FFC | 29 min |
| Jul 31, 3:30 PM EDT | Special Weather Statement | FFC | 30 min |
| Jul 31, 3:38 PM EDT | Severe Thunderstorm Warning | FFC | 40 min |
| Jul 31, 3:59 PM EDT | Special Weather Statement | FFC | 31 min |
| Jul 31, 4:29 PM EDT | Special Weather Statement | FFC | 31 min |
| Aug 17, 7:21 PM EDT | Special Weather Statement | FFC | 24 min |
| Aug 17, 8:15 PM EDT | Severe Thunderstorm Warning | FFC | 45 min |
| Aug 17, 8:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Aug 17, 8:50 PM EDT | Severe Thunderstorm Warning | FFC | 40 min |
| Aug 18, 3:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 18, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 18, 3:48 PM EDT | Severe Thunderstorm Warning | FFC | 42 min |
| Aug 18, 4:11 PM EDT | Severe Thunderstorm Warning | FFC | 49 min |
| Aug 18, 4:35 PM EDT | Severe Thunderstorm Warning | FFC | 40 min |
| Aug 18, 5:49 PM EDT | Severe Thunderstorm Warning | FFC | 41 min |
| Sep 24, 3:26 PM EDT | Flood Watch | FFC | 71 hr |
| Sep 25, 5:14 AM EDT | Tropical Storm Watch | FFC | 12 hr |
| Sep 25, 11:11 AM EDT | Tropical Storm Warning | FFC | 48 hr |
| Sep 26, 3:11 PM EDT | Flash Flood Warning | FFC | 6 hr |
| Sep 26, 3:18 PM EDT | Flash Flood Warning | FFC | 6 hr |
| Sep 26, 9:20 PM EDT | Flash Flood Warning | FFC | 10 hr |
| Sep 26, 11:27 PM EDT | Special Weather Statement | FFC | 33 min |
| Sep 27, 12:04 AM EDT | Special Weather Statement | FFC | 26 min |
| Sep 27, 6:43 AM EDT | Flash Flood Warning | FFC | 8 hr |
| Sep 27, 6:53 AM EDT | River Flood Warning | FFC | 5 hr |
| Sep 27, 10:00 AM EDT | River Flood Warning | FFC | 35 hr |
| Sep 27, 10:57 AM EDT | Wind Advisory | FFC | 16 hr |
| Oct 16, 3:09 AM EDT | Frost Advisory | FFC | 30 hr |
| Nov 8, 10:42 PM EST | Dense Fog Advisory | FFC | 11 hr |
| Nov 11, 2:11 AM EST | Dense Fog Advisory | FFC | 8 hr |
| Nov 21, 2:48 PM EST | Wind Advisory | FFC | 3 hr |
| Dec 11, 10:47 AM EST | Wind Advisory | FFC | 8 hr |
| Dec 18, 3:06 AM EST | Dense Fog Advisory | FFC | 8 hr |
| Dec 27, 9:07 PM EST | Dense Fog Advisory | FFC | 13 hr |
| Dec 29, 1:54 AM EST | Tornado Watch | SPC | 7 hr |
| Dec 29, 4:02 AM EST | Severe Thunderstorm Warning | FFC | 58 min |
| Dec 29, 4:06 AM EST | Mesoscale Discussion | SPC | 84 min |
| Dec 29, 4:53 AM EST | Severe Thunderstorm Warning | FFC | 67 min |
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 | 21 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 29 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 8 |
| River Flood Warning | 3 |
| Flood Watch | 5 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| 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 archive20232025
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.