Alert archive / Georgia / Brantley County
Weather alerts in Brantley County, Georgia, 2020
159 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Brantley County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 159
- Warnings
- 55
- Watches
- 19
- Advisories
- 26
- Busiest month
- April31 alerts
- Busiest day
- April 23, 202010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
4 of 8 tornado warnings covering Brantley County in 2020 had a tornado report inside them.
Brantley County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 8 | 4 | 50% | 0 | ||
| Severe thunderstorm warnings | 26 | 11 | 58% | 13 | 62% | 43 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jacksonville, FL: tornado warnings | 44 | 11 | 75% | 34 | 53% | 19 min |
| NWS Jacksonville, FL: severe thunderstorm warnings | 236 | 83 | 65% | 300 | 68% | 26 min |
| NWS Jacksonville, FL: flash flood warnings | 19 | 5 | 74% | 14 | 86% | 49 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 5, 1:53 PM EST | Frost Advisory | JAX | 18 hr |
| Jan 9, 1:48 AM EST | Frost Advisory | JAX | 7 hr |
| Jan 12, 9:32 PM EST | Dense Fog Advisory | JAX | 12 hr |
| Jan 15, 1:09 AM EST | Dense Fog Advisory | JAX | 8 hr |
| Jan 19, 1:59 PM EST | Freeze Watch | JAX | 24 hr |
| Jan 20, 2:26 PM EST | Freeze Warning | JAX | 19 hr |
| Jan 21, 3:44 AM EST | Freeze Watch | JAX | 5 hr |
| Jan 21, 8:55 AM EST | Wind Chill Advisory | JAX | 23 hr |
| Jan 21, 8:56 AM EST | Freeze Warning | JAX | 23 hr |
| Jan 21, 1:57 PM EST | Hard Freeze Warning | JAX | 18 hr |
| Feb 6, 2:09 AM EST | Wind Advisory | JAX | 22 hr |
| Feb 6, 12:17 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 6, 2:32 PM EST | Mesoscale Discussion | SPC | 58 min |
| Feb 6, 4:29 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 6, 5:30 PM EST | Tornado Watch | SPC | 7 hr |
| Feb 6, 7:32 PM EST | Mesoscale Discussion | SPC | 118 min |
| Feb 6, 7:58 PM EST | Severe Thunderstorm Warning | JAX | 47 min |
| Feb 6, 8:45 PM EST | Severe Thunderstorm Warning | JAX | 45 min |
| Feb 6, 9:07 PM EST | Severe Thunderstorm Warning | JAX | 38 min |
| Feb 6, 9:18 PM EST | Severe Thunderstorm Warning | JAX | 42 min |
| Feb 7, 3:29 AM EST | Wind Advisory | JAX | 10 hr |
| Feb 7, 1:52 PM EST | Frost Advisory | JAX | 19 hr |
| Feb 17, 1:52 AM EST | Dense Fog Advisory | JAX | 6 hr |
| Feb 20, 3:15 PM EST | Freeze Watch | JAX | 19 hr |
| Feb 21, 9:56 AM EST | Freeze Warning | JAX | 23 hr |
| Feb 22, 2:00 AM EST | Freeze Watch | JAX | 12 hr |
| Feb 22, 2:25 PM EST | Frost Advisory | JAX | 18 hr |
| Feb 25, 8:28 PM EST | River Flood Warning | JAX | 25 days |
| Feb 26, 1:29 PM EST | Freeze Watch | JAX | 26 hr |
| Feb 27, 3:07 PM EST | Freeze Warning | JAX | 17 hr |
| Feb 29, 12:55 AM EST | Freeze Watch | JAX | 13 hr |
| Feb 29, 1:05 PM EST | Wind Advisory | JAX | 3 hr |
| Feb 29, 2:17 PM EST | Freeze Warning | JAX | 18 hr |
| Mar 4, 6:30 AM EST | Special Weather Statement | JAX | 30 min |
| Mar 4, 10:16 AM EST | Tornado Watch | SPC | 6 hr |
| Mar 4, 12:34 PM EST | Mesoscale Discussion | SPC | 86 min |
| Mar 5, 1:28 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 5, 3:50 PM EST | Severe Thunderstorm Warning | JAX | 27 min |
| Mar 5, 3:58 PM EST | Severe Thunderstorm Warning | JAX | 28 min |
| Mar 5, 4:10 PM EST | Severe Thunderstorm Warning | JAX | 50 min |
| Mar 29, 2:14 AM EDT | Dense Fog Advisory | JAX | 7 hr |
| Mar 31, 2:22 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 6, 4:04 AM EDT | Dense Fog Advisory | JAX | 5 hr |
| Apr 8, 6:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 8, 8:58 PM EDT | Special Weather Statement | JAX | 47 min |
| Apr 13, 3:20 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 6:17 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 13, 7:09 AM EDT | Severe Thunderstorm Warning | JAX | 66 min |
| Apr 13, 7:20 AM EDT | Severe Thunderstorm Warning | JAX | 55 min |
| Apr 13, 8:12 AM EDT | Severe Thunderstorm Warning | JAX | 63 min |
| Apr 13, 8:15 AM EDT | Severe Thunderstorm Warning | JAX | 45 min |
| Apr 13, 8:44 AM EDT | Severe Thunderstorm Warning | JAX | 47 min |
| Apr 13, 9:08 AM EDT | Severe Thunderstorm Warning | JAX | 67 min |
| Apr 14, 10:14 AM EDT | Special Weather Statement | JAX | 46 min |
| Apr 20, 1:52 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 20, 2:19 AM EDT | Tornado Watch | SPC | 9 hr |
| Apr 20, 2:59 AM EDT | Severe Thunderstorm Warning | JAX | 46 min |
| Apr 20, 3:35 AM EDT | Severe Thunderstorm Warning | JAX | 40 min |
| Apr 20, 3:58 AM EDT | Severe Thunderstorm Warning | JAX | 47 min |
| Apr 20, 5:10 AM EDT | Severe Thunderstorm Warning | JAX | 24 min |
| Apr 20, 5:34 AM EDT | Severe Thunderstorm Warning | JAX | 30 min |
| Apr 23, 10:29 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 23, 10:52 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 23, 1:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 23, 1:34 PM EDT | Severe Thunderstorm Warning | JAX | 56 min |
| Apr 23, 1:41 PM EDT | Tornado Warning | JAX | 49 min |
| Apr 23, 2:15 PM EDT | Tornado Warning | JAX | 45 min |
| Apr 23, 2:41 PM EDT | Severe Thunderstorm Warning | JAX | 49 min |
| Apr 23, 2:45 PM EDT | Tornado Warning | JAX | 30 min |
| Apr 23, 2:52 PM EDT | Tornado Warning | JAX | 38 min |
| Apr 23, 3:21 PM EDT | Tornado Warning | JAX | 54 min |
| Apr 23, 8:46 PM EDT | Special Weather Statement | JAX | 44 min |
| Apr 25, 9:01 AM EDT | River Flood Warning | JAX | 13 days |
| May 20, 10:12 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 21, 2:48 PM EDT | Special Weather Statement | JAX | 57 min |
| May 21, 3:08 PM EDT | Severe Thunderstorm Warning | JAX | 41 min |
| May 21, 3:42 PM EDT | Special Weather Statement | JAX | 48 min |
| Jun 7, 12:16 PM EDT | Areal Flood Warning | JAX | 3 hr |
| Jun 12, 5:11 PM EDT | Special Weather Statement | JAX | 49 min |
| Jun 12, 5:44 PM EDT | Areal Flood Warning | JAX | 2 hr |
| Jun 13, 2:00 AM EDT | Flash Flood Watch | JAX | 24 hr |
| Jun 19, 9:30 PM EDT | Tornado Warning | JAX | 30 min |
| Jun 19, 9:55 PM EDT | Tornado Warning | JAX | 35 min |
| Jun 19, 10:27 PM EDT | Tornado Warning | JAX | 33 min |
| Jun 19, 10:53 PM EDT | Severe Thunderstorm Warning | JAX | 37 min |
| Jun 19, 11:28 PM EDT | Severe Thunderstorm Warning | JAX | 32 min |
| Jun 19, 11:57 PM EDT | Special Weather Statement | JAX | 33 min |
| Jun 20, 7:09 PM EDT | Special Weather Statement | JAX | 51 min |
| Jun 24, 5:59 PM EDT | Special Weather Statement | JAX | 46 min |
| Jun 24, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 30, 3:57 PM EDT | Severe Thunderstorm Warning | JAX | 48 min |
| Jul 6, 12:31 PM EDT | Special Weather Statement | JAX | 59 min |
| Jul 11, 1:53 AM EDT | Heat Advisory | JAX | 14 hr |
| Jul 27, 5:42 PM EDT | Special Weather Statement | JAX | 18 min |
| Jul 27, 6:12 PM EDT | Special Weather Statement | JAX | 33 min |
| Jul 27, 6:24 PM EDT | Areal Flood Warning | JAX | 2 hr |
| Aug 4, 4:54 PM EDT | Special Weather Statement | JAX | 51 min |
| Aug 5, 6:22 PM EDT | Special Weather Statement | JAX | 23 min |
| Aug 7, 3:47 PM EDT | Special Weather Statement | JAX | 58 min |
| Aug 7, 4:36 PM EDT | Areal Flood Warning | JAX | 114 min |
| Aug 8, 6:52 PM EDT | Special Weather Statement | JAX | 53 min |
| Aug 9, 5:01 PM EDT | Special Weather Statement | JAX | 44 min |
| Aug 9, 5:42 PM EDT | Special Weather Statement | JAX | 63 min |
| Aug 9, 6:56 PM EDT | Special Weather Statement | JAX | 49 min |
| Aug 11, 6:22 PM EDT | Special Weather Statement | JAX | 38 min |
| Aug 11, 6:59 PM EDT | Special Weather Statement | JAX | 31 min |
| Aug 18, 4:21 PM EDT | Special Weather Statement | JAX | 24 min |
| Aug 18, 4:50 PM EDT | Special Weather Statement | JAX | 40 min |
| Aug 24, 2:11 PM EDT | Special Weather Statement | JAX | 34 min |
| Aug 24, 9:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 31, 4:13 PM EDT | Special Weather Statement | JAX | 47 min |
| Aug 31, 6:09 PM EDT | Areal Flood Warning | JAX | 68 min |
| Sep 1, 7:01 PM EDT | Special Weather Statement | JAX | 44 min |
| Sep 1, 7:32 PM EDT | Areal Flood Warning | JAX | 33 min |
| Sep 1, 7:47 PM EDT | Areal Flood Warning | JAX | 88 min |
| Sep 10, 2:37 PM EDT | Special Weather Statement | JAX | 68 min |
| Sep 13, 11:45 AM EDT | Special Weather Statement | JAX | 45 min |
| Sep 13, 12:30 PM EDT | Special Weather Statement | JAX | 60 min |
| Sep 13, 1:53 PM EDT | Special Weather Statement | JAX | 52 min |
| Sep 15, 1:16 PM EDT | Special Weather Statement | JAX | 59 min |
| Sep 15, 4:41 PM EDT | Special Weather Statement | JAX | 49 min |
| Sep 15, 6:06 PM EDT | Special Weather Statement | JAX | 39 min |
| Sep 15, 11:15 PM EDT | Special Weather Statement | JAX | 60 min |
| Sep 16, 7:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 16, 7:35 PM EDT | Special Weather Statement | JAX | 40 min |
| Sep 16, 8:16 PM EDT | Special Weather Statement | JAX | 44 min |
| Sep 16, 8:57 PM EDT | Severe Thunderstorm Warning | JAX | 33 min |
| Sep 17, 12:18 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 27, 4:18 AM EDT | Dense Fog Advisory | JAX | 5 hr |
| Sep 29, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 29, 3:21 PM EDT | Special Weather Statement | JAX | 39 min |
| Oct 7, 4:54 AM EDT | Dense Fog Advisory | JAX | 5 hr |
| Oct 8, 4:02 AM EDT | Dense Fog Advisory | JAX | 5 hr |
| Oct 9, 2:51 AM EDT | Dense Fog Advisory | JAX | 6 hr |
| Oct 10, 6:51 PM EDT | Special Weather Statement | JAX | 54 min |
| Oct 15, 4:11 AM EDT | Dense Fog Advisory | JAX | 6 hr |
| Oct 16, 7:47 AM EDT | Dense Fog Advisory | JAX | 2 hr |
| Oct 26, 5:30 AM EDT | Dense Fog Advisory | JAX | 4 hr |
| Oct 29, 1:53 PM EDT | Special Weather Statement | JAX | 52 min |
| Nov 30, 5:09 AM EST | Special Weather Statement | JAX | 36 min |
| Nov 30, 3:49 PM EST | Freeze Watch | JAX | 10 hr |
| Dec 1, 1:53 AM EST | Freeze Warning | JAX | 30 hr |
| Dec 2, 2:46 PM EST | Frost Advisory | JAX | 17 hr |
| Dec 8, 2:33 AM EST | Frost Advisory | JAX | 30 hr |
| Dec 8, 8:05 PM EST | Freeze Warning | JAX | 13 hr |
| Dec 13, 12:18 AM EST | Dense Fog Advisory | JAX | 10 hr |
| Dec 17, 3:11 AM EST | Freeze Watch | JAX | 8 hr |
| Dec 17, 11:39 AM EST | Freeze Warning | JAX | 21 hr |
| Dec 18, 1:35 PM EST | Frost Advisory | JAX | 18 hr |
| Dec 23, 2:45 PM EST | Freeze Watch | JAX | 23 hr |
| Dec 24, 3:36 AM EST | Hard Freeze Watch | JAX | 23 hr |
| Dec 24, 1:41 PM EST | Wind Chill Advisory | JAX | 19 hr |
| Dec 24, 1:50 PM EST | Freeze Warning | JAX | 19 hr |
| Dec 24, 4:28 PM EST | Mesoscale Discussion | SPC | 92 min |
| Dec 24, 5:14 PM EST | Special Weather Statement | JAX | 46 min |
| Dec 24, 5:33 PM EST | Severe Thunderstorm Warning | JAX | 57 min |
| Dec 25, 2:16 AM EST | Hard Freeze Warning | JAX | 31 hr |
| Dec 25, 2:40 PM EST | Hard Freeze Watch | JAX | 24 hr |
| Dec 26, 2:29 PM EST | Hard Freeze Warning | JAX | 19 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 | 8 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 42 |
| Flooding | |
| Areal Flood Warning | 7 |
| River Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 9 |
| Hard Freeze Warning | 3 |
| Freeze Watch | 9 |
| Hard Freeze Watch | 2 |
| Frost Advisory | 7 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.