Alert archive / Alabama / Calhoun County
Weather alerts in Calhoun County, Alabama, 2023
151 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Calhoun County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 151
- Warnings
- 43
- Watches
- 29
- Advisories
- 35
- Busiest month
- August33 alerts
- Busiest day
- May 18, 20238 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Calhoun County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 27 | 23 | 15% | 30 | 80% | 21 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 44 | 25 | 43% | 93 | 72% | 27 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 451 | 311 | 31% | 916 | 74% | 23 min |
| NWS Birmingham, AL: flash flood warnings | 23 | 17 | 26% | 40 | 93% | 83 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, 12:29 PM CST | Mesoscale Discussion | SPC | 91 min |
| Jan 3, 12:56 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 3, 2:07 PM CST | Mesoscale Discussion | SPC | 113 min |
| Jan 4, 1:14 AM CST | Flash Flood Warning | BMX | 4 hr |
| Jan 4, 2:06 AM CST | Mesoscale Discussion | SPC | 114 min |
| Jan 10, 4:41 AM CST | Freezing Fog Advisory | BMX | 3 hr |
| Jan 11, 2:17 PM CST | Wind Advisory | BMX | 31 hr |
| Jan 12, 6:59 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 12, 10:52 AM CST | Mesoscale Discussion | SPC | 53 min |
| Jan 12, 12:09 PM CST | Severe Thunderstorm Warning | BMX | 45 min |
| Jan 12, 12:29 PM CST | Severe Thunderstorm Warning | BMX | 25 min |
| Jan 17, 6:06 PM CST | Dense Fog Advisory | BMX | 16 hr |
| Jan 18, 1:53 PM CST | Wind Advisory | BMX | 16 hr |
| Jan 19, 1:37 PM CST | Wind Advisory | BMX | 5 hr |
| Jan 23, 2:02 PM CST | Wind Advisory | BMX | 46 hr |
| Feb 8, 3:42 AM CST | Wind Advisory | BMX | 29 hr |
| Feb 11, 2:31 AM CST | Wind Advisory | BMX | 27 hr |
| Feb 22, 2:12 AM CST | Wind Advisory | BMX | 19 hr |
| Feb 26, 2:23 AM CST | Wind Advisory | BMX | 41 hr |
| Mar 2, 4:01 AM CST | Wind Advisory | BMX | 40 hr |
| Mar 3, 10:34 AM CST | Tornado Watch | SPC | 5 hr |
| Mar 3, 12:07 PM CST | Mesoscale Discussion | SPC | 83 min |
| Mar 3, 12:57 PM CST | Severe Thunderstorm Warning | BMX | 45 min |
| Mar 12, 3:08 PM CDT | Freeze Watch | BMX | 36 hr |
| Mar 13, 2:52 AM CDT | Freeze Warning | BMX | 31 hr |
| Mar 14, 3:02 AM CDT | Freeze Watch | BMX | 24 hr |
| Mar 14, 3:02 AM CDT | Freeze Warning | BMX | 30 hr |
| Mar 15, 3:19 AM CDT | Freeze Warning | BMX | 29 hr |
| Mar 17, 4:15 AM CDT | Freeze Watch | BMX | 5 hr |
| Mar 17, 4:15 AM CDT | Freeze Watch | BMX | 23 hr |
| Mar 17, 9:28 AM CDT | Freeze Warning | BMX | 24 hr |
| Mar 18, 3:27 AM CDT | Freeze Warning | BMX | 31 hr |
| Mar 18, 3:27 AM CDT | Freeze Warning | BMX | 55 hr |
| Mar 19, 4:21 AM CDT | Freeze Watch | BMX | 22 hr |
| Mar 20, 2:06 AM CDT | Freeze Warning | BMX | 30 hr |
| Mar 24, 12:07 PM CDT | Wind Advisory | BMX | 19 hr |
| Mar 26, 10:13 AM CDT | Flood Watch | BMX | 27 hr |
| Mar 26, 5:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 31, 2:22 AM CDT | Wind Advisory | BMX | 41 hr |
| Apr 1, 3:19 AM CDT | Tornado Watch | SPC | 5 hr |
| Apr 1, 3:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 1, 5:11 AM CDT | Severe Thunderstorm Warning | BMX | 49 min |
| Apr 1, 5:52 AM CDT | Special Weather Statement | BMX | 53 min |
| Apr 1, 6:18 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 13, 10:04 AM CDT | Wind Advisory | BMX | 9 hr |
| Apr 15, 1:07 AM CDT | Dense Fog Advisory | BMX | 8 hr |
| May 2, 2:19 AM CDT | Wind Advisory | BMX | 17 hr |
| May 10, 5:19 PM CDT | Special Weather Statement | BMX | 26 min |
| May 13, 4:29 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| May 16, 12:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 2:34 PM CDT | Special Weather Statement | BMX | 41 min |
| May 18, 3:42 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 18, 4:12 PM CDT | Special Weather Statement | BMX | 33 min |
| May 18, 4:27 PM CDT | Severe Thunderstorm Warning | BMX | 26 min |
| May 18, 4:32 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 18, 4:52 PM CDT | Special Weather Statement | BMX | 38 min |
| May 18, 5:02 PM CDT | Severe Thunderstorm Warning | BMX | 28 min |
| May 18, 5:24 PM CDT | Severe Thunderstorm Warning | BMX | 16 min |
| May 18, 5:29 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 18, 7:45 PM CDT | Areal Flood Warning | BMX | 3 hr |
| May 18, 8:24 PM CDT | Areal Flood Warning | BMX | 111 min |
| May 20, 1:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 1:40 PM CDT | Special Weather Statement | BMX | 35 min |
| Jun 11, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 11, 9:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 11, 10:57 PM CDT | Special Weather Statement | BMX | 48 min |
| Jun 11, 11:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 14, 12:53 PM CDT | Severe Thunderstorm Warning | BMX | 29 min |
| Jun 14, 1:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 14, 2:10 PM CDT | Severe Thunderstorm Warning | BMX | 34 min |
| Jun 17, 3:29 AM CDT | Dense Fog Advisory | BMX | 7 hr |
| Jun 17, 5:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 2:25 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 25, 2:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 25, 3:57 PM CDT | Severe Thunderstorm Warning | BMX | 25 min |
| Jun 25, 4:37 PM CDT | Severe Thunderstorm Warning | BMX | 83 min |
| Jun 25, 5:11 PM CDT | Severe Thunderstorm Warning | BMX | 64 min |
| Jun 28, 3:00 AM CDT | Heat Advisory | BMX | 5 days |
| Jun 30, 1:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 1:29 PM CDT | Special Weather Statement | BMX | 16 min |
| Jun 30, 1:44 PM CDT | Special Weather Statement | BMX | 46 min |
| Jul 1, 12:22 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 1, 3:39 PM CDT | Severe Thunderstorm Warning | BMX | 51 min |
| Jul 1, 4:07 PM CDT | Severe Thunderstorm Warning | BMX | 38 min |
| Jul 1, 4:54 PM CDT | Severe Thunderstorm Warning | BMX | 31 min |
| Jul 2, 12:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 2, 1:49 PM CDT | Severe Thunderstorm Warning | BMX | 56 min |
| Jul 2, 2:20 PM CDT | Areal Flood Advisory | BMX | 115 min |
| Jul 3, 4:31 PM CDT | Special Weather Statement | BMX | 59 min |
| Jul 18, 2:48 PM CDT | Heat Advisory | BMX | 3 days |
| Jul 18, 5:46 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 20, 2:09 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 3:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 4:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 4:57 PM CDT | Special Weather Statement | BMX | 48 min |
| Jul 21, 5:21 PM CDT | Severe Thunderstorm Warning | BMX | 39 min |
| Jul 21, 5:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 27, 1:48 PM CDT | Heat Advisory | BMX | 3 days |
| Jul 27, 5:43 PM CDT | Special Weather Statement | BMX | 17 min |
| Jul 28, 2:12 PM CDT | Special Weather Statement | BMX | 33 min |
| Jul 29, 6:17 PM CDT | Special Weather Statement | BMX | 28 min |
| Jul 30, 10:50 AM CDT | Special Weather Statement | BMX | 40 min |
| Jul 31, 3:10 AM CDT | Dense Fog Advisory | BMX | 5 hr |
| Aug 3, 4:11 AM CDT | Flood Watch | BMX | 36 hr |
| Aug 3, 12:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 3, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 3, 2:27 PM CDT | Severe Thunderstorm Warning | BMX | 63 min |
| Aug 4, 7:40 PM CDT | Heat Advisory | BMX | 69 hr |
| Aug 5, 5:44 AM CDT | Dense Fog Advisory | BMX | 2 hr |
| Aug 6, 11:49 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 6, 1:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 6, 2:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 6, 3:05 PM CDT | Severe Thunderstorm Warning | BMX | 70 min |
| Aug 6, 3:36 PM CDT | Severe Thunderstorm Warning | BMX | 69 min |
| Aug 6, 3:38 PM CDT | Severe Thunderstorm Warning | BMX | 67 min |
| Aug 7, 10:40 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 7, 1:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 3:06 PM CDT | Severe Thunderstorm Warning | BMX | 69 min |
| Aug 7, 3:14 PM CDT | Severe Thunderstorm Warning | BMX | 61 min |
| Aug 7, 3:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 9, 2:43 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| Aug 9, 1:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 6:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 9, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 9, 7:35 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Aug 11, 12:10 PM CDT | Excessive Heat Warning | BMX | 3 days |
| Aug 11, 12:10 PM CDT | Heat Advisory | BMX | 62 hr |
| Aug 12, 9:39 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 10:50 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 12, 3:29 PM CDT | Severe Thunderstorm Warning | BMX | 76 min |
| Aug 13, 4:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Aug 20, 2:29 PM CDT | Heat Advisory | BMX | 7 days |
| Aug 24, 5:58 PM CDT | Severe Thunderstorm Warning | BMX | 34 min |
| Aug 28, 3:32 PM CDT | Special Weather Statement | BMX | 43 min |
| Aug 28, 3:34 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Oct 21, 3:53 AM CDT | Red Flag Warning | BMX | 15 hr |
| Oct 29, 4:47 PM CDT | Fire Weather Watch | BMX | 20 hr |
| Oct 29, 4:47 PM CDT | Fire Weather Watch | BMX | 58 hr |
| Oct 30, 3:43 AM CDT | Freeze Watch | BMX | 47 hr |
| Oct 30, 12:28 PM CDT | Freeze Warning | BMX | 45 hr |
| Oct 30, 12:37 PM CDT | Red Flag Warning | BMX | 30 hr |
| Oct 31, 2:46 AM CDT | Freeze Watch | BMX | 24 hr |
| Nov 1, 2:17 AM CDT | Freeze Warning | BMX | 31 hr |
| Nov 1, 2:30 AM CDT | Red Flag Warning | BMX | 17 hr |
| Nov 20, 2:22 AM CST | Wind Advisory | BMX | 30 hr |
| Dec 1, 9:01 PM CST | Dense Fog Advisory | BMX | 12 hr |
| Dec 9, 10:10 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 9, 11:53 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 10, 12:44 AM CST | Severe Thunderstorm Warning | BMX | 46 min |
| Dec 10, 1:16 AM CST | Severe Thunderstorm Warning | BMX | 44 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 | 27 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 9 |
| Freeze Watch | 7 |
| Wind and dust | |
| Wind Advisory | 14 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.