Alert archive / Alabama / Montgomery County
Weather alerts in Montgomery County, Alabama, 2020
149 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 149
- Warnings
- 30
- Watches
- 19
- Advisories
- 51
- Busiest month
- March24 alerts
- Busiest day
- February 6, 20207 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 1 tornado reports fell inside a warning.
Montgomery County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 11 | 9 | 18% | 27 | 59% | 21 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 0% |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 40 | 16 | 60% | 62 | 68% | 17 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 206 | 150 | 27% | 663 | 66% | 25 min |
| NWS Birmingham, AL: flash flood warnings | 36 | 27 | 25% | 123 | 82% | 117 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 3, 4:40 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Jan 3, 5:44 AM CST | Special Weather Statement | BMX | 46 min |
| Jan 9, 1:49 PM CST | Wind Advisory | BMX | 55 hr |
| Jan 11, 12:42 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 11, 1:29 PM CST | Areal Flood Advisory | BMX | 2 hr |
| Jan 11, 2:09 PM CST | Severe Thunderstorm Warning | BMX | 62 min |
| Jan 11, 2:21 PM CST | Areal Flood Advisory | BMX | 114 min |
| Jan 11, 2:26 PM CST | Mesoscale Discussion | SPC | 94 min |
| Jan 12, 2:51 AM CST | Dense Fog Advisory | BMX | 6 hr |
| Jan 14, 12:02 PM CST | Special Weather Statement | BMX | 43 min |
| Jan 14, 12:47 PM CST | Special Weather Statement | BMX | 43 min |
| Jan 15, 3:18 AM CST | Dense Fog Advisory | BMX | 8 hr |
| Jan 15, 3:13 PM CST | Dense Fog Advisory | BMX | 17 hr |
| Jan 24, 5:05 AM CST | Dense Fog Advisory | BMX | 4 hr |
| Jan 28, 12:20 AM CST | Dense Fog Advisory | BMX | 9 hr |
| Jan 29, 3:08 PM CST | Dense Fog Advisory | BMX | 18 hr |
| Feb 4, 2:08 PM CST | Flash Flood Watch | BMX | 48 hr |
| Feb 4, 9:46 PM CST | River Flood Warning | BMX | 40 hr |
| Feb 6, 2:02 AM CST | Mesoscale Discussion | SPC | 88 min |
| Feb 6, 3:27 AM CST | Tornado Watch | SPC | 9 hr |
| Feb 6, 8:32 AM CST | Special Weather Statement | BMX | 43 min |
| Feb 6, 8:41 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Feb 6, 9:27 AM CST | Severe Thunderstorm Warning | BMX | 40 min |
| Feb 6, 9:54 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Feb 6, 10:00 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 7, 1:30 PM CST | River Flood Warning | BMX | 19 days |
| Feb 8, 4:45 AM CST | River Flood Warning | BMX | 15 hr |
| Feb 8, 10:43 AM CST | River Flood Warning | BMX | 21 hr |
| Feb 8, 9:26 PM CST | Dense Fog Advisory | BMX | 12 hr |
| Feb 12, 5:14 AM CST | River Flood Warning | BMX | 13 days |
| Feb 18, 6:56 AM CST | Dense Fog Advisory | BMX | 3 hr |
| Feb 19, 7:37 PM CST | River Flood Warning | BMX | 4 days |
| Feb 19, 8:27 PM CST | Flash Flood Watch | BMX | 22 hr |
| Feb 20, 2:04 PM CST | Areal Flood Advisory | BMX | 4 hr |
| Mar 3, 5:12 AM CST | Tornado Watch | SPC | 5 hr |
| Mar 3, 7:25 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 12:24 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Mar 3, 12:52 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 1:20 PM CST | River Flood Warning | BMX | 7 days |
| Mar 3, 2:35 PM CST | Flash Flood Watch | BMX | 45 hr |
| Mar 3, 10:19 PM CST | Dense Fog Advisory | BMX | 6 hr |
| Mar 4, 2:39 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 4, 5:32 AM CST | Severe Thunderstorm Warning | BMX | 58 min |
| Mar 4, 8:49 AM CST | River Flood Warning | BMX | 6 days |
| Mar 4, 9:04 AM CST | River Flood Warning | BMX | 71 hr |
| Mar 4, 3:08 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Mar 4, 4:00 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Mar 5, 2:26 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 5, 9:34 PM CST | Dense Fog Advisory | BMX | 8 hr |
| Mar 6, 4:23 AM CST | River Flood Warning | BMX | 15 hr |
| Mar 6, 5:13 AM CST | Wind Advisory | BMX | 13 hr |
| Mar 11, 2:34 AM CDT | Dense Fog Advisory | BMX | 4 hr |
| Mar 14, 6:52 AM CDT | Dense Fog Advisory | BMX | 3 hr |
| Mar 18, 3:08 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| Mar 27, 3:58 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| Mar 31, 7:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 8:51 AM CDT | Tornado Watch | SPC | 6 hr |
| Mar 31, 10:22 AM CDT | Special Weather Statement | BMX | 23 min |
| Apr 8, 5:50 AM CDT | Dense Fog Advisory | BMX | 3 hr |
| Apr 8, 12:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 2:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 11, 2:04 PM CDT | Wind Advisory | BMX | 42 hr |
| Apr 12, 4:38 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 12, 10:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 12, 10:37 PM CDT | Severe Thunderstorm Warning | BMX | 53 min |
| Apr 12, 10:45 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 12, 11:15 PM CDT | Severe Thunderstorm Warning | BMX | 60 min |
| Apr 13, 12:13 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Apr 18, 3:50 AM CDT | Flash Flood Watch | BMX | 48 hr |
| Apr 19, 8:56 AM CDT | River Flood Warning | BMX | 4 days |
| Apr 19, 3:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 19, 3:56 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 19, 5:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 19, 7:03 PM CDT | Special Weather Statement | BMX | 42 min |
| Apr 19, 8:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 19, 8:42 PM CDT | River Flood Warning | BMX | 4 days |
| Apr 20, 6:33 AM CDT | River Flood Warning | BMX | 38 hr |
| Apr 22, 4:48 AM CDT | Flash Flood Watch | BMX | 31 hr |
| Apr 22, 10:23 PM CDT | Wind Advisory | BMX | 14 hr |
| Apr 23, 7:01 AM CDT | Special Weather Statement | BMX | 44 min |
| Apr 26, 2:42 AM CDT | Wind Advisory | BMX | 16 hr |
| May 6, 2:39 AM CDT | Wind Advisory | BMX | 18 hr |
| May 7, 3:12 PM CDT | Wind Advisory | BMX | 26 hr |
| May 22, 1:06 PM CDT | Special Weather Statement | BMX | 39 min |
| May 22, 4:09 PM CDT | Special Weather Statement | BMX | 36 min |
| May 22, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | 19 min |
| May 23, 3:05 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| May 23, 7:43 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 23, 7:50 PM CDT | Special Weather Statement | BMX | 40 min |
| May 27, 12:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 5, 5:54 PM CDT | Special Weather Statement | BMX | 36 min |
| Jun 5, 7:08 PM CDT | Special Weather Statement | BMX | 37 min |
| Jun 10, 2:57 PM CDT | Special Weather Statement | BMX | 33 min |
| Jun 22, 12:49 PM CDT | Special Weather Statement | BMX | 26 min |
| Jun 24, 1:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 5:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 28, 4:40 PM CDT | Severe Thunderstorm Warning | BMX | 33 min |
| Jun 28, 5:01 PM CDT | Special Weather Statement | BMX | 44 min |
| Jul 10, 3:11 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 12, 12:09 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 2:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 12, 3:43 PM CDT | Special Weather Statement | BMX | 62 min |
| Jul 12, 3:49 PM CDT | Severe Thunderstorm Warning | BMX | 60 min |
| Jul 15, 2:36 PM CDT | Special Weather Statement | BMX | 39 min |
| Jul 15, 4:01 PM CDT | Special Weather Statement | BMX | 29 min |
| Jul 15, 4:09 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Aug 10, 6:02 PM CDT | Special Weather Statement | BMX | 28 min |
| Aug 10, 6:51 PM CDT | Special Weather Statement | BMX | 24 min |
| Aug 11, 1:56 PM CDT | Special Weather Statement | BMX | 34 min |
| Aug 11, 2:36 PM CDT | Severe Thunderstorm Warning | BMX | 39 min |
| Aug 12, 6:24 PM CDT | Severe Thunderstorm Warning | BMX | 37 min |
| Aug 12, 6:47 PM CDT | Areal Flood Advisory | BMX | 118 min |
| Aug 15, 6:24 PM CDT | Special Weather Statement | BMX | 36 min |
| Aug 19, 9:20 PM CDT | Special Weather Statement | BMX | 40 min |
| Aug 19, 9:38 PM CDT | Severe Thunderstorm Warning | BMX | 37 min |
| Aug 19, 9:43 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Aug 19, 10:05 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Aug 20, 1:40 PM CDT | Special Weather Statement | BMX | 35 min |
| Aug 20, 3:20 PM CDT | Special Weather Statement | MOB | 25 min |
| Aug 21, 11:12 PM CDT | Areal Flood Advisory | BMX | 4 hr |
| Sep 14, 4:27 AM CDT | Flash Flood Watch | BMX | 3 days |
| Sep 15, 11:52 AM CDT | River Flood Warning | BMX | 4 days |
| Sep 15, 11:55 AM CDT | River Flood Warning | BMX | 3 days |
| Sep 15, 11:56 AM CDT | River Flood Warning | BMX | 70 hr |
| Sep 15, 3:37 PM CDT | Wind Advisory | BMX | 35 hr |
| Sep 16, 11:21 AM CDT | Areal Flood Advisory | BMX | 4 hr |
| Sep 16, 3:03 PM CDT | Areal Flood Advisory | BMX | 6 hr |
| Sep 16, 8:52 PM CDT | Areal Flood Advisory | BMX | 6 hr |
| Sep 24, 3:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 26, 4:54 AM CDT | Dense Fog Advisory | BMX | 4 hr |
| Oct 10, 11:13 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 10, 12:47 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 27, 4:11 AM CDT | Tropical Storm Watch | BMX | 30 hr |
| Oct 28, 10:06 AM CDT | Tropical Storm Warning | BMX | 21 hr |
| Oct 28, 11:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Oct 29, 12:25 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Nov 2, 1:22 PM CST | Frost Advisory | BMX | 18 hr |
| Nov 17, 2:01 PM CST | Red Flag Warning | BMX | 3 hr |
| Nov 17, 4:48 PM CST | Frost Advisory | BMX | 15 hr |
| Nov 25, 1:52 PM CST | Special Weather Statement | BMX | 38 min |
| Nov 25, 11:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Nov 27, 6:34 PM CST | Special Weather Statement | BMX | 41 min |
| Nov 29, 11:11 PM CST | Wind Advisory | BMX | 7 hr |
| Dec 11, 2:17 AM CST | Dense Fog Advisory | BMX | 7 hr |
| Dec 12, 6:57 PM CST | Dense Fog Advisory | BMX | 15 hr |
| Dec 14, 2:38 AM CST | Special Weather Statement | BMX | 52 min |
| Dec 23, 2:43 PM CST | Wind Advisory | BMX | 27 hr |
| Dec 29, 3:57 AM CST | Dense Fog Advisory | BMX | 5 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 | 11 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 28 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 16 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 18 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 20 |
| 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 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.