Alert archive / Georgia / Jefferson County
Weather alerts in Jefferson County, Georgia, 2022
113 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 113
- Warnings
- 24
- Watches
- 14
- Advisories
- 31
- Busiest month
- May21 alerts
- Busiest day
- May 23, 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.
Jefferson County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 6 | 50% | 7 | 100% | 17 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 Atlanta, GA: tornado warnings | 33 | 14 | 58% | 47 | 60% | 10 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 292 | 149 | 49% | 553 | 67% | 14 min |
| NWS Atlanta, GA: flash flood warnings | 42 | 14 | 67% | 92 | 66% | 238 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, 3:55 PM EST | Wind Advisory | FFC | 20 hr |
| Jan 2, 11:11 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 9, 7:12 PM EST | Special Weather Statement | FFC | 48 min |
| Jan 15, 4:50 AM EST | Wind Advisory | FFC | 59 hr |
| Jan 21, 1:02 PM EST | Winter Weather Advisory | FFC | 17 hr |
| Jan 28, 4:04 AM EST | Fire Weather Watch | FFC | 11 hr |
| Jan 28, 4:10 AM EST | Wind Advisory | FFC | 29 hr |
| Jan 28, 2:48 PM EST | Red Flag Warning | FFC | 28 hr |
| Feb 17, 3:57 AM EST | Wind Advisory | FFC | 27 hr |
| Feb 24, 6:10 AM EST | Dense Fog Advisory | FFC | 3 hr |
| Mar 9, 6:18 AM EST | Tornado Watch | SPC | 7 hr |
| Mar 11, 3:26 AM EST | Wind Advisory | FFC | 40 hr |
| Mar 12, 3:04 AM EST | Freeze Warning | FFC | 31 hr |
| Mar 12, 3:47 AM EST | Mesoscale Discussion | SPC | 118 min |
| Mar 12, 4:46 AM EST | Special Weather Statement | FFC | 44 min |
| Mar 12, 4:50 AM EST | Special Weather Statement | FFC | 25 min |
| Mar 12, 5:29 AM EST | Special Weather Statement | FFC | 46 min |
| Mar 13, 2:40 PM EDT | Freeze Warning | FFC | 19 hr |
| Mar 16, 11:19 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Mar 16, 7:48 PM EDT | Special Weather Statement | FFC | 42 min |
| Mar 17, 5:07 AM EDT | Dense Fog Advisory | FFC | 5 hr |
| Mar 18, 1:19 PM EDT | Special Weather Statement | FFC | 26 min |
| Mar 25, 3:21 AM EDT | Fire Weather Watch | FFC | 23 hr |
| Mar 25, 2:38 PM EDT | Wind Advisory | FFC | 39 hr |
| Mar 26, 2:39 AM EDT | Red Flag Warning | FFC | 17 hr |
| Mar 27, 1:54 AM EDT | Red Flag Warning | FFC | 18 hr |
| Mar 31, 11:43 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Apr 5, 12:03 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 5, 2:48 PM EDT | Flood Watch | FFC | 40 hr |
| Apr 5, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 5, 4:47 PM EDT | Severe Thunderstorm Warning | FFC | 43 min |
| Apr 5, 5:10 PM EDT | Severe Thunderstorm Warning | FFC | 33 min |
| Apr 5, 5:25 PM EDT | Severe Thunderstorm Warning | FFC | 35 min |
| Apr 6, 12:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 6, 1:32 PM EDT | Tornado Watch | SPC | 10 hr |
| Apr 6, 3:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 9, 2:45 PM EDT | Frost Advisory | FFC | 19 hr |
| Apr 17, 3:27 AM EDT | Dense Fog Advisory | FFC | 7 hr |
| Apr 18, 12:21 AM EDT | Special Weather Statement | FFC | 24 min |
| Apr 26, 1:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 11:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 12:57 PM EDT | Tornado Watch | SPC | 7 hr |
| May 6, 2:32 PM EDT | Wind Advisory | FFC | 6 hr |
| May 6, 3:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 6, 3:37 PM EDT | Severe Thunderstorm Warning | FFC | 38 min |
| May 6, 4:00 PM EDT | Severe Thunderstorm Warning | FFC | 34 min |
| May 6, 6:43 PM EDT | Special Weather Statement | FFC | 17 min |
| May 14, 6:11 AM EDT | Dense Fog Advisory | FFC | 4 hr |
| May 22, 4:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 22, 5:35 PM EDT | Severe Thunderstorm Warning | FFC | 40 min |
| May 22, 6:15 PM EDT | Special Weather Statement | FFC | 30 min |
| May 22, 6:24 PM EDT | Severe Thunderstorm Warning | FFC | 36 min |
| May 23, 9:36 AM EDT | Special Weather Statement | FFC | 24 min |
| May 23, 9:59 AM EDT | Special Weather Statement | FFC | 31 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, 3:17 PM EDT | Special Weather Statement | FFC | 13 min |
| May 23, 4:07 PM EDT | Severe Thunderstorm Warning | FFC | 23 min |
| May 23, 4:26 PM EDT | Special Weather Statement | FFC | 19 min |
| May 23, 4:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 8:06 PM EDT | Special Weather Statement | FFC | 24 min |
| Jun 13, 3:11 PM EDT | Heat Advisory | FFC | 29 hr |
| Jun 14, 11:21 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 14, 12:17 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 12:21 PM EDT | Special Weather Statement | FFC | 24 min |
| Jun 14, 3:39 PM EDT | Excessive Heat Watch | FFC | 12 hr |
| Jun 15, 3:50 AM EDT | Excessive Heat Warning | FFC | 16 hr |
| Jun 15, 2:51 PM EDT | Heat Advisory | FFC | 29 hr |
| Jun 15, 4:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 2:51 PM EDT | Heat Advisory | FFC | 29 hr |
| Jun 17, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 17, 6:03 PM EDT | Special Weather Statement | FFC | 27 min |
| Jun 17, 6:11 PM EDT | Severe Thunderstorm Warning | FFC | 34 min |
| Jun 17, 6:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 6:48 PM EDT | Severe Thunderstorm Warning | FFC | 27 min |
| Jun 17, 7:17 PM EDT | Severe Thunderstorm Warning | FFC | 43 min |
| Jun 22, 3:35 AM EDT | Heat Advisory | FFC | 17 hr |
| Jun 22, 3:20 PM EDT | Heat Advisory | FFC | 29 hr |
| Jun 23, 3:50 AM EDT | Excessive Heat Warning | FFC | 16 hr |
| Jul 6, 3:46 AM EDT | Heat Advisory | FFC | 16 hr |
| Jul 7, 4:39 AM EDT | Heat Advisory | FFC | 14 hr |
| Jul 7, 6:07 PM EDT | Special Weather Statement | FFC | 23 min |
| Jul 7, 6:30 PM EDT | Special Weather Statement | FFC | 45 min |
| Jul 8, 4:20 AM EDT | Heat Advisory | FFC | 15 hr |
| Jul 14, 3:45 PM EDT | Special Weather Statement | FFC | 30 min |
| Jul 14, 4:16 PM EDT | Special Weather Statement | FFC | 29 min |
| Jul 15, 3:55 PM EDT | Special Weather Statement | FFC | 35 min |
| Jul 15, 4:14 PM EDT | Severe Thunderstorm Warning | FFC | 31 min |
| Jul 21, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 24, 5:08 PM EDT | Special Weather Statement | FFC | 37 min |
| Aug 3, 4:57 PM EDT | Special Weather Statement | FFC | 33 min |
| Aug 9, 10:01 PM EDT | Special Weather Statement | FFC | 29 min |
| Aug 10, 6:53 PM EDT | Special Weather Statement | FFC | 37 min |
| Aug 15, 7:49 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 29, 4:57 AM EDT | Wind Advisory | FFC | 39 hr |
| Oct 12, 4:29 PM EDT | Special Weather Statement | FFC | 16 min |
| Oct 17, 3:07 PM EDT | Fire Weather Watch | FFC | 12 hr |
| Oct 18, 3:22 AM EDT | Red Flag Warning | FFC | 17 hr |
| Oct 18, 3:34 AM EDT | Freeze Warning | FFC | 30 hr |
| Oct 18, 2:08 PM EDT | Freeze Watch | FFC | 20 hr |
| Oct 19, 10:23 AM EDT | Freeze Warning | FFC | 24 hr |
| Nov 7, 2:57 AM EST | Dense Fog Advisory | FFC | 7 hr |
| Nov 9, 10:31 AM EST | Wind Advisory | FFC | 49 hr |
| Nov 10, 4:30 AM EST | High Wind Warning | FFC | 15 hr |
| Nov 17, 4:15 AM EST | Freeze Warning | FFC | 28 hr |
| Nov 25, 10:08 PM EST | Dense Fog Advisory | FFC | 11 hr |
| Dec 3, 11:27 PM EST | Dense Fog Advisory | FFC | 11 hr |
| Dec 6, 5:17 PM EST | Dense Fog Advisory | FFC | 18 hr |
| Dec 7, 11:54 PM EST | Dense Fog Advisory | FFC | 9 hr |
| Dec 12, 12:44 AM EST | Dense Fog Advisory | FFC | 8 hr |
| Dec 20, 2:32 PM EST | Wind Chill Watch | FFC | 24 hr |
| Dec 21, 2:55 PM EST | Wind Chill Advisory | FFC | 4 days |
| Dec 22, 2:45 PM EST | Wind Advisory | FFC | 31 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 | 12 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 26 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
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.