Alert archive / Alabama / Winston County
Weather alerts in Winston County, Alabama, 2020
128 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Winston County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 128
- Warnings
- 16
- Watches
- 18
- Advisories
- 49
- Busiest month
- April16 alerts
- Busiest day
- August 28, 202010 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 3 tornado warnings covering Winston County in 2020 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 0 minutes after it went out.
Winston County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 2 | 50% | 0 min |
| Severe thunderstorm warnings | 8 | 6 | 25% | 22 | 59% | 21 min |
| Flash flood warnings | 2 | 1 | 50% | 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 1, 3:35 AM CST | Flood Watch | BMX | 62 hr |
| Jan 2, 7:21 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Jan 2, 10:49 PM CST | Areal Flood Advisory | BMX | 116 min |
| Jan 3, 4:59 AM CST | Dense Fog Advisory | BMX | 4 hr |
| Jan 9, 1:49 PM CST | Wind Advisory | BMX | 55 hr |
| Jan 11, 6:57 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 11, 9:28 AM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 11, 11:50 AM CST | Mesoscale Discussion | SPC | 85 min |
| Jan 11, 12:04 PM CST | Special Weather Statement | BMX | 56 min |
| Jan 11, 12:24 PM CST | Severe Thunderstorm Warning | BMX | 36 min |
| Jan 11, 12:35 PM CST | Areal Flood Advisory | BMX | 115 min |
| Jan 14, 3:03 AM CST | Flash Flood Watch | BMX | 18 hr |
| Jan 14, 10:03 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Jan 24, 5:05 AM CST | Dense Fog Advisory | BMX | 4 hr |
| Jan 27, 5:07 AM CST | Dense Fog Advisory | BMX | 4 hr |
| Feb 5, 3:47 PM CST | Mesoscale Discussion | SPC | 118 min |
| Feb 5, 4:25 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 9, 3:52 AM CST | Flood Watch | BMX | 24 hr |
| Feb 10, 3:40 AM CST | Flash Flood Watch | BMX | 30 hr |
| Feb 10, 10:13 AM CST | Areal Flood Advisory | BMX | 6 hr |
| Feb 10, 11:53 AM CST | Flash Flood Warning | BMX | 6 hr |
| Feb 10, 11:13 PM CST | Areal Flood Advisory | BMX | 6 hr |
| Feb 11, 12:26 AM CST | Areal Flood Warning | BMX | 6 hr |
| Feb 11, 3:43 PM CST | Flash Flood Watch | BMX | 38 hr |
| Feb 12, 4:34 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 12, 5:38 PM CST | Severe Thunderstorm Warning | BMX | 52 min |
| Feb 12, 6:00 PM CST | Mesoscale Discussion | SPC | 90 min |
| Feb 18, 2:57 AM CST | Flash Flood Watch | BMX | 22 hr |
| Feb 18, 10:40 AM CST | Areal Flood Advisory | BMX | 6 hr |
| Feb 18, 4:31 PM CST | Areal Flood Advisory | BMX | 5 hr |
| Mar 5, 9:34 PM CST | Dense Fog Advisory | BMX | 8 hr |
| Mar 11, 12:26 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 11, 2:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Mar 18, 3:08 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| Mar 22, 11:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 24, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 24, 6:27 PM CDT | Special Weather Statement | BMX | 33 min |
| Mar 24, 6:59 PM CDT | Tornado Warning | BMX | 46 min |
| Mar 24, 7:05 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Mar 28, 9:58 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 28, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 29, 2:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Mar 29, 2:27 AM CDT | Severe Thunderstorm Warning | BMX | 48 min |
| Apr 8, 5:50 AM CDT | Dense Fog Advisory | BMX | 3 hr |
| Apr 9, 1:01 AM CDT | Special Weather Statement | BMX | 44 min |
| Apr 9, 1:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 9, 1:44 AM CDT | Special Weather Statement | BMX | 46 min |
| Apr 10, 3:21 PM CDT | Frost Advisory | BMX | 17 hr |
| Apr 11, 2:04 PM CDT | Wind Advisory | BMX | 42 hr |
| Apr 12, 3:07 AM CDT | Flash Flood Watch | BMX | 21 hr |
| Apr 12, 1:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 12, 3:20 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 12, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 12, 8:14 PM CDT | Areal Flood Advisory | BMX | 5 hr |
| Apr 12, 8:15 PM CDT | Tornado Warning | BMX | 15 min |
| Apr 14, 1:48 AM CDT | Frost Advisory | BMX | 30 hr |
| Apr 22, 10:23 PM CDT | Wind Advisory | BMX | 14 hr |
| Apr 25, 4:40 PM CDT | Wind Advisory | BMX | 5 hr |
| 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 9, 2:46 AM CDT | Frost Advisory | BMX | 29 hr |
| May 23, 4:39 PM CDT | Special Weather Statement | BMX | 36 min |
| May 23, 5:10 PM CDT | Special Weather Statement | BMX | 50 min |
| May 23, 5:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 23, 6:02 PM CDT | Special Weather Statement | BMX | 43 min |
| May 23, 7:21 PM CDT | Areal Flood Advisory | BMX | 114 min |
| Jun 5, 9:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 11:06 AM CDT | Special Weather Statement | BMX | 39 min |
| Jun 5, 4:07 PM CDT | Areal Flood Advisory | BMX | 38 min |
| Jun 5, 4:45 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Jun 5, 4:57 PM CDT | Special Weather Statement | BMX | 48 min |
| Jun 5, 5:11 PM CDT | Severe Thunderstorm Warning | BMX | 28 min |
| Jun 5, 5:26 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jun 8, 5:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 12:34 PM CDT | Special Weather Statement | BMX | 26 min |
| Jun 22, 3:39 PM CDT | Special Weather Statement | BMX | 51 min |
| Jun 23, 2:01 PM CDT | Special Weather Statement | BMX | 44 min |
| Jun 25, 4:01 PM CDT | Areal Flood Advisory | BMX | 119 min |
| Jun 25, 6:02 PM CDT | Areal Flood Advisory | BMX | 118 min |
| Jun 27, 6:13 PM CDT | Special Weather Statement | BMX | 32 min |
| Jun 27, 7:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 29, 1:31 PM CDT | Special Weather Statement | BMX | 29 min |
| Jun 30, 7:26 PM CDT | Special Weather Statement | BMX | 64 min |
| Jul 1, 12:53 AM CDT | Special Weather Statement | BMX | 52 min |
| Jul 4, 5:43 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 8, 6:50 PM CDT | Areal Flood Advisory | BMX | 115 min |
| Jul 10, 3:11 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 12, 10:46 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 12, 10:50 AM CDT | Special Weather Statement | BMX | 40 min |
| Jul 12, 10:57 AM CDT | Severe Thunderstorm Warning | BMX | 35 min |
| Jul 12, 11:38 AM CDT | Severe Thunderstorm Warning | BMX | 52 min |
| Jul 12, 12:02 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jul 13, 3:10 AM CDT | Dense Fog Advisory | BMX | 6 hr |
| Jul 15, 1:37 PM CDT | Heat Advisory | BMX | 53 hr |
| Jul 31, 12:58 PM CDT | Special Weather Statement | BMX | 47 min |
| Jul 31, 1:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 31, 5:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 8:05 PM CDT | Areal Flood Advisory | BMX | 115 min |
| Aug 19, 4:35 PM CDT | Areal Flood Advisory | BMX | 115 min |
| Aug 26, 6:02 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Aug 27, 3:26 PM CDT | Special Weather Statement | BMX | 34 min |
| Aug 28, 10:31 AM CDT | Tornado Watch | SPC | 5 hr |
| Aug 28, 3:26 PM CDT | Special Weather Statement | BMX | 49 min |
| Aug 28, 3:46 PM CDT | Tornado Watch | SPC | 4 hr |
| Aug 28, 4:15 PM CDT | Special Weather Statement | BMX | 45 min |
| Aug 28, 4:36 PM CDT | Tornado Warning | BMX | 39 min |
| Aug 28, 5:10 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Aug 28, 5:15 PM CDT | Severe Thunderstorm Warning | BMX | 15 min |
| Aug 28, 5:16 PM CDT | Special Weather Statement | BMX | 44 min |
| Aug 28, 5:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 28, 5:21 PM CDT | Severe Thunderstorm Warning | BMX | 54 min |
| Aug 30, 1:39 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 7:24 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Oct 16, 9:30 PM CDT | Frost Advisory | BMX | 11 hr |
| Oct 31, 3:08 AM CDT | Freeze Watch | BMX | 24 hr |
| Nov 1, 2:14 AM CST | Freeze Warning | BMX | 30 hr |
| Nov 2, 1:22 PM CST | Frost Advisory | BMX | 18 hr |
| Nov 15, 6:54 AM CST | Special Weather Statement | BMX | 66 min |
| Nov 16, 9:21 PM CST | Frost Advisory | BMX | 11 hr |
| Nov 17, 1:40 AM CST | Freeze Watch | BMX | 7 hr |
| Nov 17, 8:51 AM CST | Freeze Warning | BMX | 23 hr |
| Nov 25, 9:26 AM CST | Special Weather Statement | BMX | 49 min |
| Nov 26, 6:26 AM CST | Dense Fog Advisory | BMX | 3 hr |
| Dec 5, 8:21 AM CST | Dense Fog Advisory | BMX | 99 min |
| Dec 6, 3:23 AM CST | Freezing Fog Advisory | BMX | 5 hr |
| Dec 12, 6:57 PM CST | Dense Fog Advisory | BMX | 15 hr |
| Dec 23, 2:43 PM CST | Wind Advisory | BMX | 27 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 | 8 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 22 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Freezing Fog Advisory | 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.