Alert archive / Alabama / Marengo County
Weather alerts in Marengo County, Alabama, 2019
150 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Marengo County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 150
- Warnings
- 45
- Watches
- 14
- Advisories
- 40
- Busiest month
- January20 alerts
- Busiest day
- April 14, 20198 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 5 tornado warnings covering Marengo County in 2019 had a tornado report inside them; 1 of 3 tornado reports fell inside a warning, on average 33 minutes after it went out.
Marengo County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 2 | 60% | 3 | 33% | 33 min |
| Severe thunderstorm warnings | 6 | 4 | 33% | 5 | 20% | 25 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 66 | 33 | 50% | 99 | 75% | 19 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 164 | 111 | 32% | 527 | 58% | 22 min |
| NWS Birmingham, AL: flash flood warnings | 6 | 3 | 50% | 9 | 100% | 46 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 1, 8:10 AM CST | River Flood Warning | BMX | 6 days |
| Jan 2, 2:39 PM CST | Flash Flood Watch | BMX | 36 hr |
| Jan 3, 9:10 AM CST | River Flood Warning | BMX | 25 hr |
| Jan 17, 9:37 PM CST | Dense Fog Advisory | BMX | 12 hr |
| Jan 18, 9:13 AM CST | River Flood Warning | BMX | 70 hr |
| Jan 19, 3:25 AM CST | Wind Advisory | BMX | 33 hr |
| Jan 19, 9:08 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 19, 9:43 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 19, 11:37 AM CST | Mesoscale Discussion | SPC | 83 min |
| Jan 19, 8:11 PM CST | River Flood Warning | BMX | 35 hr |
| Jan 23, 4:19 AM CST | Wind Advisory | BMX | 16 hr |
| Jan 23, 8:10 AM CST | River Flood Warning | BMX | 55 hr |
| Jan 23, 8:10 AM CST | River Flood Warning | BMX | 37 hr |
| Jan 23, 8:17 AM CST | River Flood Warning | BMX | 5 days |
| Jan 23, 10:57 AM CST | Special Weather Statement | BMX | 48 min |
| Jan 23, 1:43 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Jan 25, 12:55 AM CST | River Flood Warning | BMX | 55 hr |
| Jan 27, 3:14 PM CST | Winter Storm Watch | BMX | 13 hr |
| Jan 28, 3:52 AM CST | Winter Storm Warning | BMX | 25 hr |
| Jan 28, 3:52 AM CST | Winter Weather Advisory | BMX | 29 hr |
| Feb 3, 10:34 PM CST | Dense Fog Advisory | BMX | 11 hr |
| Feb 5, 7:36 AM CST | Dense Fog Advisory | BMX | 2 hr |
| Feb 12, 6:40 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 18, 7:45 PM CST | River Flood Warning | BMX | 12 days |
| Feb 18, 7:45 PM CST | River Flood Warning | BMX | 21 days |
| Feb 18, 7:45 PM CST | River Flood Warning | BMX | 18 days |
| Feb 18, 7:46 PM CST | River Flood Warning | BMX | 18 days |
| Feb 19, 7:01 AM CST | Special Weather Statement | BMX | 29 min |
| Feb 19, 7:26 AM CST | Special Weather Statement | BMX | 34 min |
| Feb 20, 2:13 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Feb 20, 7:51 PM CST | River Flood Warning | BMX | 5 days |
| Feb 20, 10:24 PM CST | Dense Fog Advisory | BMX | 11 hr |
| Feb 23, 7:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Mar 3, 11:03 AM CST | Tornado Watch | SPC | 7 hr |
| Mar 3, 1:38 PM CST | River Flood Warning | BMX | 31 hr |
| Mar 4, 4:19 AM CST | Freeze Warning | BMX | 3 days |
| Mar 14, 12:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 14, 5:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 14, 6:15 PM CDT | Special Weather Statement | MOB | 15 min |
| Mar 14, 6:41 PM CDT | Tornado Watch | SPC | 5 hr |
| Mar 14, 7:15 PM CDT | Tornado Warning | BMX | 60 min |
| Mar 25, 4:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 25, 4:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Mar 25, 4:58 PM CDT | Severe Thunderstorm Warning | BMX | 32 min |
| Mar 25, 5:28 PM CDT | Severe Thunderstorm Warning | BMX | 32 min |
| Mar 25, 6:03 PM CDT | Special Weather Statement | BMX | 42 min |
| Mar 25, 6:07 PM CDT | Special Weather Statement | MOB | 38 min |
| Mar 25, 6:55 PM CDT | Special Weather Statement | BMX | 35 min |
| Mar 25, 7:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 6, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 6, 8:50 PM CDT | Areal Flood Warning | BMX | 115 min |
| Apr 7, 8:20 PM CDT | River Flood Warning | BMX | 4 days |
| Apr 7, 8:20 PM CDT | River Flood Warning | BMX | 24 hr |
| Apr 13, 5:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 7:11 PM CDT | Tornado Watch | SPC | 11 hr |
| Apr 13, 8:45 PM CDT | River Flood Warning | BMX | 7 days |
| Apr 13, 9:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 13, 11:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 14, 12:15 AM CDT | Wind Advisory | BMX | 21 hr |
| Apr 14, 12:50 AM CDT | Tornado Warning | BMX | 40 min |
| Apr 14, 1:55 AM CDT | Severe Thunderstorm Warning | BMX | 50 min |
| Apr 14, 2:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 14, 7:42 PM CDT | River Flood Warning | BMX | 4 days |
| Apr 14, 7:42 PM CDT | River Flood Warning | BMX | 9 days |
| Apr 18, 3:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 3:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 18, 5:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 18, 8:54 PM CDT | River Flood Warning | BMX | 47 hr |
| Apr 18, 8:58 PM CDT | River Flood Warning | BMX | 47 hr |
| May 4, 11:58 AM CDT | Mesoscale Discussion | SPC | 77 min |
| May 4, 12:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 4, 2:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 3:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 9, 11:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 9, 1:38 PM CDT | Severe Thunderstorm Warning | BMX | 25 min |
| May 9, 2:25 PM CDT | River Flood Warning | BMX | 4 days |
| May 10, 9:13 AM CDT | River Flood Warning | BMX | 35 hr |
| May 10, 9:13 AM CDT | River Flood Warning | BMX | 59 hr |
| May 10, 9:16 AM CDT | River Flood Warning | BMX | 59 hr |
| May 12, 3:14 AM CDT | Special Weather Statement | BMX | 46 min |
| May 21, 6:22 AM CDT | Dense Fog Advisory | BMX | 3 hr |
| Jun 6, 8:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 7, 8:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 7, 9:58 AM CDT | Special Weather Statement | BMX | 62 min |
| Jun 7, 10:17 AM CDT | Severe Thunderstorm Warning | BMX | 43 min |
| Jun 7, 4:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 7, 5:29 PM CDT | Special Weather Statement | BMX | 61 min |
| Jun 20, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 21, 12:05 PM CDT | Heat Advisory | BMX | 7 hr |
| Jun 25, 8:41 PM CDT | Special Weather Statement | BMX | 34 min |
| Jun 25, 9:16 PM CDT | Special Weather Statement | BMX | 44 min |
| Jun 27, 3:52 PM CDT | Special Weather Statement | BMX | 53 min |
| Jun 28, 3:53 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| Jun 28, 1:30 PM CDT | Special Weather Statement | BMX | 45 min |
| Jul 6, 3:02 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 7, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 1:38 PM CDT | Special Weather Statement | BMX | 67 min |
| Jul 7, 2:46 PM CDT | Special Weather Statement | BMX | 29 min |
| Jul 9, 3:04 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 9, 3:02 PM CDT | Heat Advisory | BMX | 28 hr |
| Jul 9, 7:44 PM CDT | Special Weather Statement | BMX | 31 min |
| Jul 10, 2:47 PM CDT | Heat Advisory | BMX | 23 hr |
| Jul 19, 1:36 PM CDT | Special Weather Statement | BMX | 24 min |
| Jul 20, 9:37 AM CDT | Areal Flood Advisory | BMX | 113 min |
| Jul 20, 11:31 AM CDT | Areal Flood Advisory | BMX | 119 min |
| Aug 2, 6:42 PM CDT | Special Weather Statement | BMX | 33 min |
| Aug 4, 4:45 PM CDT | Special Weather Statement | BMX | 45 min |
| Aug 5, 2:58 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| Aug 8, 3:53 AM CDT | Heat Advisory | BMX | 60 hr |
| Aug 8, 5:22 PM CDT | Special Weather Statement | BMX | 38 min |
| Aug 10, 4:03 PM CDT | Heat Advisory | BMX | 4 days |
| Aug 12, 4:21 AM CDT | Heat Advisory | BMX | 15 hr |
| Aug 12, 2:19 PM CDT | Excessive Heat Warning | BMX | 31 hr |
| Aug 20, 6:01 AM CDT | Dense Fog Advisory | BMX | 119 min |
| Aug 23, 8:38 PM CDT | Special Weather Statement | BMX | 37 min |
| Aug 23, 9:19 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Aug 25, 1:22 PM CDT | Areal Flood Advisory | BMX | 113 min |
| Aug 27, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 6:19 PM CDT | Severe Thunderstorm Warning | BMX | 26 min |
| Aug 27, 6:57 PM CDT | Special Weather Statement | BMX | 48 min |
| Sep 6, 2:12 PM CDT | Heat Advisory | BMX | 3 days |
| Sep 8, 3:31 AM CDT | Heat Advisory | BMX | 41 hr |
| Oct 9, 4:20 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| Oct 25, 3:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Oct 25, 5:28 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Oct 25, 7:27 PM CDT | Tornado Warning | BMX | 22 min |
| Oct 25, 8:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Oct 25, 8:21 PM CDT | Tornado Warning | BMX | 23 min |
| Oct 25, 8:46 PM CDT | Areal Flood Advisory | BMX | 119 min |
| Oct 25, 9:19 PM CDT | Flash Flood Watch | BMX | 13 hr |
| Oct 25, 10:55 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Oct 26, 4:27 AM CDT | Wind Advisory | BMX | 14 hr |
| Oct 28, 9:42 PM CDT | Dense Fog Advisory | BMX | 11 hr |
| Nov 1, 3:59 AM CDT | Frost Advisory | BMX | 29 hr |
| Nov 2, 1:22 PM CDT | Frost Advisory | BMX | 20 hr |
| Nov 7, 3:05 PM CST | Freeze Watch | BMX | 12 hr |
| Nov 8, 2:41 AM CST | Freeze Warning | BMX | 29 hr |
| Nov 9, 12:49 PM CST | Frost Advisory | BMX | 18 hr |
| Nov 11, 3:28 AM CST | Freeze Warning | BMX | 55 hr |
| Nov 11, 1:28 PM CST | Wind Advisory | BMX | 28 hr |
| Dec 7, 12:38 AM CST | Dense Fog Advisory | BMX | 5 hr |
| Dec 15, 2:05 AM CST | Dense Fog Advisory | BMX | 7 hr |
| Dec 16, 3:47 PM CST | Tornado Watch | SPC | 10 hr |
| Dec 16, 7:34 PM CST | Tornado Warning | BMX | 56 min |
| Dec 16, 7:57 PM CST | Mesoscale Discussion | SPC | 93 min |
| Dec 16, 8:58 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 21, 11:26 AM CST | River Flood Warning | BMX | 6 days |
| Dec 22, 7:43 AM CST | River Flood Warning | BMX | 21 days |
| Dec 22, 7:18 PM CST | River Flood Warning | BMX | 37 hr |
| Dec 29, 6:05 PM CST | Mesoscale Discussion | SPC | 85 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 | 6 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 23 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 28 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 10 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 12 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.