Alert archive / Alabama / Marengo County
Weather alerts in Marengo County, Alabama, 2018
164 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 164
- Warnings
- 40
- Watches
- 12
- Advisories
- 56
- Busiest month
- December27 alerts
- Busiest day
- December 28, 20188 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 2 tornado reports fell inside a warning.
Marengo County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 2 | 0% | |||
| Severe thunderstorm warnings | 5 | 1 | 80% | 3 | 100% | 21 min |
| Flash flood warnings | 4 | 1 | 75% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 24 | 6 | 75% | 29 | 45% | 18 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 119 | 75 | 37% | 363 | 54% | 24 min |
| NWS Birmingham, AL: flash flood warnings | 40 | 22 | 45% | 61 | 92% | 97 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 9, 9:21 PM CST | Dense Fog Advisory | BMX | 8 hr |
| Jan 12, 2:57 AM CST | Wind Advisory | BMX | 11 hr |
| Jan 15, 3:40 AM CST | Hard Freeze Watch | BMX | 32 hr |
| Jan 15, 1:45 PM CST | Winter Weather Advisory | BMX | 42 hr |
| Jan 16, 2:36 AM CST | Wind Chill Advisory | BMX | 33 hr |
| Jan 16, 11:12 AM CST | Hard Freeze Warning | BMX | 46 hr |
| Jan 22, 11:10 AM CST | Special Weather Statement | BMX | 65 min |
| Feb 7, 5:46 AM CST | Severe Thunderstorm Warning | BMX | 44 min |
| Feb 7, 7:45 AM CST | River Flood Warning | BMX | 8 days |
| Feb 7, 8:38 PM CST | River Flood Warning | BMX | 37 hr |
| Feb 7, 8:38 PM CST | River Flood Warning | BMX | 8 days |
| Feb 9, 8:52 AM CST | River Flood Warning | BMX | 6 days |
| Feb 9, 1:45 PM CST | Flood Watch | BMX | 52 hr |
| Feb 10, 7:02 AM CST | Dense Fog Advisory | BMX | 118 min |
| Feb 10, 8:29 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 11, 8:43 AM CST | River Flood Warning | BMX | 3 days |
| Feb 23, 7:20 PM CST | River Flood Warning | BMX | 7 days |
| Feb 26, 8:28 AM CST | River Flood Warning | BMX | 5 days |
| Mar 1, 2:47 AM CST | Wind Advisory | BMX | 14 hr |
| Mar 7, 3:48 AM CST | Freeze Watch | BMX | 24 hr |
| Mar 7, 1:38 PM CST | Frost Advisory | BMX | 18 hr |
| Mar 8, 4:11 AM CST | Freeze Warning | BMX | 28 hr |
| Mar 10, 7:53 AM CST | River Flood Warning | BMX | 4 days |
| Mar 10, 7:12 PM CST | River Flood Warning | BMX | 3 days |
| Mar 12, 3:19 AM CDT | Frost Advisory | BMX | 30 hr |
| Mar 12, 3:19 AM CDT | Freeze Watch | BMX | 24 hr |
| Mar 12, 3:19 AM CDT | Wind Advisory | BMX | 16 hr |
| Mar 13, 3:33 AM CDT | Frost Advisory | BMX | 30 hr |
| Mar 13, 3:33 AM CDT | Freeze Watch | BMX | 24 hr |
| Mar 14, 3:23 AM CDT | Freeze Warning | BMX | 30 hr |
| Mar 19, 5:07 AM CDT | Dense Fog Advisory | BMX | 4 hr |
| Mar 20, 3:06 AM CDT | Wind Advisory | BMX | 19 hr |
| Mar 21, 2:54 AM CDT | Frost Advisory | BMX | 29 hr |
| Mar 28, 8:27 AM CDT | River Flood Warning | BMX | 4 days |
| Apr 3, 11:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 6, 10:39 PM CDT | Special Weather Statement | BMX | 66 min |
| Apr 13, 9:06 AM CDT | River Flood Warning | BMX | 72 hr |
| Apr 13, 9:06 AM CDT | River Flood Warning | BMX | 48 hr |
| Apr 13, 9:06 AM CDT | River Flood Warning | BMX | 24 hr |
| Apr 13, 4:40 PM CDT | Flash Flood Watch | BMX | 36 hr |
| Apr 14, 9:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 14, 10:36 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 14, 12:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 14, 1:02 PM CDT | Special Weather Statement | BMX | 58 min |
| Apr 14, 1:39 PM CDT | Severe Thunderstorm Warning | BMX | 41 min |
| Apr 14, 5:33 PM CDT | Flash Flood Warning | BMX | 4 hr |
| Apr 14, 9:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 15, 8:41 AM CDT | River Flood Warning | BMX | 48 hr |
| Apr 15, 8:44 AM CDT | River Flood Warning | BMX | 4 days |
| Apr 22, 3:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 23, 5:06 AM CDT | Dense Fog Advisory | BMX | 4 hr |
| Apr 23, 8:25 AM CDT | River Flood Warning | BMX | 5 days |
| May 16, 5:25 PM CDT | Special Weather Statement | BMX | 35 min |
| May 16, 5:52 PM CDT | Special Weather Statement | BMX | 23 min |
| May 16, 6:12 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 16, 6:21 PM CDT | Special Weather Statement | BMX | 24 min |
| May 16, 7:18 PM CDT | Flash Flood Warning | BMX | 117 min |
| May 17, 1:16 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 20, 6:35 PM CDT | Special Weather Statement | BMX | 25 min |
| May 20, 6:52 PM CDT | Special Weather Statement | BMX | 38 min |
| May 20, 7:24 PM CDT | Special Weather Statement | BMX | 36 min |
| May 20, 7:55 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| May 24, 3:48 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| May 25, 2:53 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| May 26, 2:15 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| May 29, 4:52 PM CDT | Special Weather Statement | BMX | 23 min |
| May 29, 9:46 PM CDT | Areal Flood Advisory | BMX | 119 min |
| May 30, 5:18 AM CDT | Flash Flood Watch | BMX | 14 hr |
| May 30, 9:38 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 3, 2:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 10, 4:31 PM CDT | Areal Flood Advisory | BMX | 119 min |
| Jun 12, 2:13 PM CDT | Special Weather Statement | BMX | 32 min |
| Jun 12, 2:44 PM CDT | Special Weather Statement | BMX | 31 min |
| Jun 14, 3:58 PM CDT | Special Weather Statement | BMX | 47 min |
| Jun 15, 3:11 PM CDT | Special Weather Statement | BMX | 49 min |
| Jun 16, 5:49 PM CDT | Special Weather Statement | BMX | 26 min |
| Jun 25, 4:40 AM CDT | Heat Advisory | BMX | 14 hr |
| Jun 25, 7:41 PM CDT | Heat Advisory | BMX | 24 hr |
| Jun 26, 3:54 PM CDT | Heat Advisory | BMX | 27 hr |
| Jun 26, 6:15 PM CDT | Special Weather Statement | BMX | 45 min |
| Jun 26, 6:42 PM CDT | Special Weather Statement | BMX | 48 min |
| Jun 27, 7:56 PM CDT | Heat Advisory | BMX | 23 hr |
| Jun 28, 4:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 28, 4:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | 37 min |
| Jun 28, 5:39 PM CDT | Special Weather Statement | BMX | 36 min |
| Jun 28, 5:52 PM CDT | Special Weather Statement | BMX | 68 min |
| Jun 30, 4:54 PM CDT | Special Weather Statement | BMX | 36 min |
| Jun 30, 5:28 PM CDT | Special Weather Statement | BMX | 47 min |
| Jun 30, 6:17 PM CDT | Flash Flood Warning | BMX | 89 min |
| Jul 7, 4:03 PM CDT | Special Weather Statement | BMX | 27 min |
| Jul 7, 4:27 PM CDT | Special Weather Statement | BMX | 33 min |
| Jul 7, 4:57 PM CDT | Special Weather Statement | BMX | 33 min |
| Jul 13, 3:56 AM CDT | Heat Advisory | BMX | 15 hr |
| Jul 14, 3:02 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 14, 3:44 PM CDT | Special Weather Statement | BMX | 31 min |
| Jul 15, 3:09 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 16, 2:49 AM CDT | Heat Advisory | BMX | 7 hr |
| Jul 16, 8:30 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 19, 4:27 PM CDT | Heat Advisory | BMX | 27 hr |
| Jul 22, 11:22 AM CDT | Severe Thunderstorm Warning | BMX | 23 min |
| Jul 22, 11:29 AM CDT | Special Weather Statement | BMX | 16 min |
| Jul 22, 11:38 AM CDT | Severe Thunderstorm Warning | BMX | 22 min |
| Jul 22, 1:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 12:51 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 2:06 PM CDT | Special Weather Statement | BMX | 24 min |
| Jul 31, 2:28 PM CDT | Special Weather Statement | BMX | 32 min |
| Jul 31, 2:51 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 31, 3:46 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Aug 7, 3:18 AM CDT | Heat Advisory | BMX | 16 hr |
| Aug 10, 12:13 PM CDT | Special Weather Statement | BMX | 32 min |
| Aug 10, 12:42 PM CDT | Special Weather Statement | BMX | 33 min |
| Aug 10, 1:26 PM CDT | Special Weather Statement | BMX | 34 min |
| Aug 18, 3:39 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Aug 19, 4:21 PM CDT | Areal Flood Advisory | BMX | 114 min |
| Aug 29, 7:33 PM CDT | Special Weather Statement | BMX | 27 min |
| Aug 29, 8:07 PM CDT | Areal Flood Advisory | BMX | 113 min |
| Sep 5, 5:59 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 5, 9:01 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 5, 1:23 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 6, 5:50 PM CDT | Areal Flood Advisory | BMX | 115 min |
| Sep 9, 6:26 PM CDT | Special Weather Statement | BMX | 34 min |
| Oct 15, 8:14 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Nov 1, 4:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 1, 5:27 AM CDT | Tornado Watch | SPC | 7 hr |
| Nov 1, 7:22 AM CDT | Special Weather Statement | BMX | 38 min |
| Nov 1, 7:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Nov 1, 7:53 AM CDT | Special Weather Statement | BMX | 67 min |
| Nov 7, 10:34 AM CST | Mesoscale Discussion | SPC | 56 min |
| Nov 7, 10:39 AM CST | Special Weather Statement | BMX | 51 min |
| Nov 7, 11:04 AM CST | Special Weather Statement | MOB | 41 min |
| Nov 10, 8:52 AM CST | Frost Advisory | BMX | 23 hr |
| Nov 12, 4:22 PM CST | Areal Flood Advisory | BMX | 113 min |
| Nov 13, 3:05 PM CST | Freeze Watch | BMX | 12 hr |
| Nov 14, 2:58 AM CST | Freeze Warning | BMX | 54 hr |
| Nov 18, 2:39 AM CST | Dense Fog Advisory | BMX | 5 hr |
| Nov 24, 7:22 PM CST | Dense Fog Advisory | BMX | 15 hr |
| Dec 1, 3:07 PM CST | Mesoscale Discussion | SPC | 113 min |
| Dec 7, 8:24 AM CST | River Flood Warning | BMX | 59 hr |
| Dec 7, 7:12 PM CST | River Flood Warning | BMX | 39 hr |
| Dec 7, 7:17 PM CST | River Flood Warning | BMX | 5 days |
| Dec 7, 7:21 PM CST | River Flood Warning | BMX | 38 hr |
| Dec 8, 10:44 PM CST | Wind Advisory | BMX | 3 hr |
| Dec 11, 2:59 AM CST | Freezing Fog Advisory | BMX | 7 hr |
| Dec 17, 2:33 AM CST | Dense Fog Advisory | BMX | 7 hr |
| Dec 18, 12:42 AM CST | Dense Fog Advisory | BMX | 9 hr |
| Dec 26, 1:54 PM CST | Wind Advisory | BMX | 34 hr |
| Dec 26, 2:07 PM CST | Flash Flood Watch | BMX | 45 hr |
| Dec 27, 8:28 AM CST | River Flood Warning | BMX | 3 days |
| Dec 27, 8:28 AM CST | River Flood Warning | BMX | 14 days |
| Dec 27, 8:34 AM CST | River Flood Warning | BMX | 13 days |
| Dec 27, 4:36 PM CST | Special Weather Statement | MOB | 39 min |
| Dec 27, 4:56 PM CST | Special Weather Statement | BMX | 34 min |
| Dec 27, 7:40 PM CST | Areal Flood Advisory | BMX | 2 hr |
| Dec 27, 8:28 PM CST | River Flood Warning | BMX | 4 days |
| Dec 27, 9:42 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Dec 27, 11:04 PM CST | Flash Flood Warning | BMX | 6 hr |
| Dec 28, 2:52 AM CST | Special Weather Statement | BMX | 23 min |
| Dec 28, 8:31 AM CST | River Flood Warning | BMX | 26 hr |
| Dec 28, 9:37 AM CST | River Flood Warning | BMX | 3 days |
| Dec 28, 10:18 AM CST | River Flood Warning | BMX | 20 hr |
| Dec 28, 9:38 PM CST | Dense Fog Advisory | BMX | 10 hr |
| Dec 30, 2:17 AM CST | Dense Fog Advisory | BMX | 8 hr |
| Dec 30, 6:08 PM CST | Dense Fog Advisory | BMX | 13 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 | 5 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 40 |
| Flooding | |
| Flash Flood Warning | 4 |
| River Flood Warning | 27 |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 19 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 10 |
| Cold | |
| Freeze Warning | 3 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 4 |
| Hard Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.