Alert archive / Alabama / Jefferson County
Weather alerts in Jefferson County, Alabama, 2026
184 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 184
- Warnings
- 41
- Watches
- 19
- Advisories
- 53
- Busiest month
- July36 alerts
- Busiest day
- July 1, 202610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 3 tornado reports fell inside a warning.
Jefferson County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 3 | 0% | |||
| Severe thunderstorm warnings | 21 | 19 | 10% | 56 | 77% | 23 min |
| Flash flood warnings | 13 | 10 | 23% | 26 | 92% | 72 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 9 | 2 | 78% | 12 | 17% | 0 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 191 | 131 | 31% | 562 | 65% | 24 min |
| NWS Birmingham, AL: flash flood warnings | 35 | 23 | 34% | 58 | 88% | 76 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 3, 9:59 PM CST | Dense Fog Advisory | BMX | 10 hr |
| Jan 6, 5:26 PM CST | Dense Fog Advisory | BMX | 18 hr |
| Jan 7, 8:52 PM CST | Dense Fog Advisory | BMX | 13 hr |
| Jan 8, 11:53 AM CST | Flood Watch | BMX | 51 hr |
| Jan 9, 3:53 PM CST | Areal Flood Advisory | BMX | 112 min |
| Jan 9, 4:10 PM CST | Flash Flood Warning | BMX | 3 hr |
| Jan 10, 3:49 AM CST | Tornado Watch | SPC | 9 hr |
| Jan 10, 4:31 AM CST | Areal Flood Advisory | BMX | 6 hr |
| Jan 10, 5:05 AM CST | Flash Flood Warning | BMX | 6 hr |
| Jan 10, 5:37 AM CST | Areal Flood Advisory | BMX | 7 hr |
| Jan 10, 7:26 AM CST | Areal Flood Advisory | BMX | 2 hr |
| Jan 23, 3:15 PM CST | Extreme Cold Watch | BMX | 20 hr |
| Jan 24, 10:48 AM CST | Cold Weather Advisory | BMX | 47 hr |
| Jan 24, 10:25 PM CST | Cold Weather Advisory | BMX | 59 hr |
| Jan 25, 10:19 AM CST | Areal Flood Advisory | BMX | 4 hr |
| Jan 28, 11:24 PM CST | Extreme Cold Watch | BMX | 35 hr |
| Jan 29, 11:29 AM CST | Cold Weather Advisory | BMX | 49 hr |
| Jan 29, 11:29 AM CST | Extreme Cold Warning | BMX | 3 days |
| Jan 30, 10:53 AM CST | Wind Advisory | BMX | 33 hr |
| Feb 4, 6:07 AM CST | Dense Fog Advisory | BMX | 3 hr |
| Feb 9, 9:27 PM CST | Dense Fog Advisory | BMX | 13 hr |
| Feb 21, 10:27 PM CST | Wind Advisory | BMX | 20 hr |
| Feb 26, 12:36 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 3:21 PM CST | Severe Thunderstorm Warning | BMX | 39 min |
| Feb 26, 5:23 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 6:05 PM CST | Areal Flood Advisory | BMX | 8 hr |
| Feb 26, 6:09 PM CST | Special Weather Statement | BMX | 51 min |
| Feb 27, 12:23 AM CST | Areal Flood Advisory | BMX | 4 hr |
| Mar 7, 5:48 PM CST | Special Weather Statement | BMX | 72 min |
| Mar 7, 6:00 PM CST | Severe Thunderstorm Warning | BMX | 60 min |
| Mar 8, 9:46 PM CDT | Dense Fog Advisory | BMX | 12 hr |
| Mar 9, 3:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 9, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 9, 6:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 9, 6:40 PM CDT | Special Weather Statement | BMX | 50 min |
| Mar 9, 7:27 PM CDT | Severe Thunderstorm Warning | BMX | 63 min |
| Mar 9, 7:47 PM CDT | Areal Flood Advisory | BMX | 118 min |
| Mar 9, 8:10 PM CDT | Severe Thunderstorm Warning | BMX | 65 min |
| Mar 9, 8:26 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Mar 9, 8:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 9, 11:36 PM CDT | Special Weather Statement | BMX | 24 min |
| Mar 11, 8:12 PM CDT | Special Weather Statement | BMX | 48 min |
| Mar 11, 11:44 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Mar 11, 11:47 PM CDT | Wind Advisory | BMX | 19 hr |
| Mar 12, 10:59 AM CDT | Frost Advisory | BMX | 23 hr |
| Mar 14, 10:20 PM CDT | Wind Advisory | BMX | 45 hr |
| Mar 14, 10:24 PM CDT | Freeze Warning | BMX | 3 days |
| Mar 15, 7:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 9:28 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 16, 1:00 AM CDT | Special Weather Statement | BMX | 60 min |
| Mar 26, 1:43 PM CDT | Fire Weather Watch | BMX | 21 hr |
| Mar 27, 10:58 AM CDT | Red Flag Warning | BMX | 32 hr |
| Apr 11, 10:57 AM CDT | Fire Weather Watch | BMX | 11 hr |
| Apr 11, 10:01 PM CDT | Red Flag Warning | BMX | 21 hr |
| Apr 26, 1:20 AM CDT | Dense Fog Advisory | BMX | 8 hr |
| Apr 29, 12:48 AM CDT | Severe Thunderstorm Warning | BMX | 42 min |
| Apr 29, 7:47 AM CDT | Special Weather Statement | BMX | 43 min |
| Apr 29, 6:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 29, 8:46 PM CDT | Special Weather Statement | BMX | 29 min |
| Apr 29, 9:12 PM CDT | Special Weather Statement | BMX | 33 min |
| Apr 29, 10:11 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 6, 4:52 AM CDT | Flood Watch | BMX | 26 hr |
| May 6, 2:39 PM CDT | Tornado Watch | SPC | 8 hr |
| May 6, 4:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 6, 8:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 9, 8:44 PM CDT | Dense Fog Advisory | BMX | 13 hr |
| May 22, 9:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 12:48 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 11:18 AM CDT | Flood Watch | BMX | 7 hr |
| May 24, 12:37 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 24, 11:29 PM CDT | Flood Watch | BMX | 47 hr |
| May 25, 5:21 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| May 28, 3:27 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 28, 3:59 PM CDT | Flash Flood Warning | BMX | 2 hr |
| May 31, 6:16 PM CDT | Special Weather Statement | BMX | 44 min |
| May 31, 6:51 PM CDT | Special Weather Statement | BMX | 24 min |
| Jun 1, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| Jun 1, 2:01 PM CDT | Severe Thunderstorm Warning | BMX | 59 min |
| Jun 1, 2:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 1, 2:27 PM CDT | Severe Thunderstorm Warning | BMX | 78 min |
| Jun 7, 8:07 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 7, 8:47 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Jun 8, 3:09 AM CDT | Flood Watch | BMX | 17 hr |
| Jun 8, 1:48 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 16, 3:06 PM CDT | Flood Watch | BMX | 3 days |
| Jun 18, 10:57 AM CDT | Areal Flood Advisory | BMX | 22 min |
| Jun 18, 11:08 AM CDT | Special Weather Statement | BMX | 52 min |
| Jun 18, 11:19 AM CDT | Flash Flood Warning | BMX | 78 min |
| Jun 18, 5:19 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 19, 8:26 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jun 20, 3:36 AM CDT | Flood Watch | BMX | 15 hr |
| Jun 20, 11:59 AM CDT | Flash Flood Warning | BMX | 3 hr |
| Jun 20, 2:14 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Jun 20, 2:18 PM CDT | Flash Flood Warning | BMX | 5 hr |
| Jun 20, 3:39 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 20, 5:09 PM CDT | Areal Flood Warning | BMX | 3 hr |
| Jun 20, 7:21 PM CDT | Areal Flood Warning | BMX | 3 hr |
| Jun 21, 4:41 PM CDT | Special Weather Statement | BMX | 49 min |
| Jun 22, 11:01 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 12:20 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 28, 11:53 AM CDT | Heat Advisory | BMX | 4 days |
| Jul 1, 12:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 12:41 PM CDT | Special Weather Statement | BMX | 49 min |
| Jul 1, 12:47 PM CDT | Severe Thunderstorm Warning | BMX | 43 min |
| Jul 1, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 1:28 PM CDT | Special Weather Statement | BMX | 47 min |
| Jul 1, 1:31 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 1, 2:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 1, 2:48 PM CDT | Special Weather Statement | BMX | 42 min |
| Jul 1, 3:31 PM CDT | Special Weather Statement | BMX | 29 min |
| Jul 1, 3:49 PM CDT | Severe Thunderstorm Warning | BMX | 41 min |
| Jul 2, 10:52 AM CDT | Heat Advisory | BMX | 58 hr |
| Jul 3, 12:54 PM CDT | Special Weather Statement | BMX | 51 min |
| Jul 3, 6:26 PM CDT | Special Weather Statement | BMX | 34 min |
| Jul 3, 6:30 PM CDT | Severe Thunderstorm Warning | BMX | 26 min |
| Jul 3, 6:52 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 3, 7:12 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Jul 4, 7:48 PM CDT | Special Weather Statement | BMX | 27 min |
| Jul 9, 3:35 PM CDT | Special Weather Statement | BMX | 25 min |
| Jul 9, 4:04 PM CDT | Severe Thunderstorm Warning | BMX | 30 min |
| Jul 14, 5:41 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 17, 1:56 PM CDT | Special Weather Statement | BMX | 34 min |
| Jul 17, 5:17 PM CDT | Special Weather Statement | BMX | 43 min |
| Jul 19, 11:45 AM CDT | Special Weather Statement | BMX | 45 min |
| Jul 19, 12:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 19, 12:21 PM CDT | Special Weather Statement | BMX | 39 min |
| Jul 19, 12:49 PM CDT | Special Weather Statement | BMX | 41 min |
| Jul 19, 10:29 PM CDT | Heat Advisory | BMX | 71 hr |
| Jul 22, 10:39 AM CDT | Flood Watch | BMX | 3 days |
| Jul 23, 4:04 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 24, 1:37 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 24, 2:03 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Jul 25, 2:02 PM CDT | Severe Thunderstorm Warning | BMX | 58 min |
| Jul 25, 2:41 PM CDT | Severe Thunderstorm Warning | BMX | 49 min |
| Jul 26, 11:25 AM CDT | Heat Advisory | BMX | 58 hr |
| Jul 27, 6:35 AM CDT | Special Weather Statement | BMX | 40 min |
| Jul 29, 6:09 PM CDT | Special Weather Statement | BMX | 36 min |
| Aug 1, 3:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 11:08 PM CDT | Special Weather Statement | BMX | 52 min |
| Aug 6, 2:01 PM CDT | Special Weather Statement | BMX | 29 min |
| Aug 6, 2:37 PM CDT | Special Weather Statement | BMX | 23 min |
| Aug 6, 3:33 PM CDT | Special Weather Statement | BMX | 27 min |
| Aug 6, 3:46 PM CDT | Areal Flood Advisory | BMX | 119 min |
| Aug 7, 2:10 PM CDT | Special Weather Statement | BMX | 35 min |
| Aug 7, 2:15 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Aug 7, 2:43 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Aug 8, 4:24 PM CDT | Special Weather Statement | BMX | 36 min |
| Aug 8, 4:42 PM CDT | Special Weather Statement | BMX | 33 min |
| Aug 9, 3:31 PM CDT | Special Weather Statement | BMX | 29 min |
| Aug 9, 3:37 PM CDT | Severe Thunderstorm Warning | BMX | 53 min |
| Aug 9, 3:45 PM CDT | Areal Flood Advisory | BMX | 20 min |
| Aug 9, 4:05 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Aug 9, 4:14 PM CDT | Special Weather Statement | BMX | 31 min |
| Aug 9, 5:26 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Aug 11, 10:24 AM CDT | Heat Advisory | BMX | 5 days |
| Aug 16, 10:16 AM CDT | Extreme Heat Warning | BMX | 35 hr |
| Aug 17, 1:02 PM CDT | Heat Advisory | BMX | 4 days |
| Aug 17, 8:03 PM CDT | Special Weather Statement | BMX | 42 min |
| Aug 17, 8:41 PM CDT | Severe Thunderstorm Warning | BMX | 49 min |
| Aug 17, 9:18 PM CDT | Special Weather Statement | BMX | 42 min |
| Aug 20, 9:40 PM CDT | Heat Advisory | BMX | 23 hr |
| Aug 22, 9:08 PM CDT | Severe Thunderstorm Warning | BMX | 52 min |
| Aug 22, 9:48 PM CDT | Severe Thunderstorm Warning | BMX | 26 min |
| Aug 26, 12:02 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 4:50 PM CDT | Severe Thunderstorm Warning | BMX | 23 min |
| Aug 26, 4:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 5:09 PM CDT | Special Weather Statement | BMX | 36 min |
| Sep 1, 9:42 AM CDT | Heat Advisory | BMX | 5 days |
| Sep 5, 4:57 PM CDT | Special Weather Statement | BMX | 48 min |
| Sep 6, 12:05 AM CDT | Special Weather Statement | BMX | 40 min |
| Sep 6, 2:07 AM CDT | Special Weather Statement | BMX | 38 min |
| Sep 6, 1:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 2:03 PM CDT | Special Weather Statement | BMX | 27 min |
| Sep 12, 5:42 PM CDT | Special Weather Statement | BMX | 33 min |
| Sep 18, 12:43 PM CDT | Heat Advisory | BMX | 31 hr |
| Sep 19, 3:07 PM CDT | Special Weather Statement | BMX | 38 min |
| Sep 19, 3:09 PM CDT | Special Weather Statement | BMX | 36 min |
| Sep 19, 3:31 PM CDT | Special Weather Statement | BMX | 29 min |
| Sep 19, 3:37 PM CDT | Severe Thunderstorm Warning | BMX | 38 min |
| Sep 19, 3:53 PM CDT | Severe Thunderstorm Warning | BMX | 28 min |
| Sep 20, 3:32 PM CDT | Special Weather Statement | BMX | 28 min |
| Sep 21, 12:20 PM CDT | Special Weather Statement | BMX | 25 min |
| Sep 21, 12:45 PM CDT | Special Weather Statement | BMX | 45 min |
| Sep 21, 1:00 PM CDT | Severe Thunderstorm Warning | BMX | 45 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 | 4 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 51 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 13 |
| Flood Watch | 8 |
| Areal Flood Advisory | 27 |
| Heat | |
| Extreme Heat Warning | 1 |
| Heat Advisory | 9 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 2 |
| Cold Weather Advisory | 3 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
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.