Alert archive / Alabama / Chilton County
Weather alerts in Chilton County, Alabama, 2019
116 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Chilton County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 116
- Warnings
- 15
- Watches
- 13
- Advisories
- 36
- Busiest month
- April16 alerts
- Busiest day
- April 14, 20196 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 Chilton County in 2019 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 17 minutes after it went out.
Chilton County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 2 | 100% | 17 min |
| Severe thunderstorm warnings | 6 | 5 | 17% | 13 | 54% | 15 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 17, 9:37 PM CST | Dense Fog Advisory | BMX | 12 hr |
| Jan 19, 3:25 AM CST | Wind Advisory | BMX | 33 hr |
| Jan 19, 9:43 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 19, 11:37 AM CST | Mesoscale Discussion | SPC | 83 min |
| Jan 23, 4:19 AM CST | Wind Advisory | BMX | 16 hr |
| Jan 23, 4:33 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Jan 27, 3:14 PM CST | Winter Storm Watch | BMX | 13 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, 9:38 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 19, 12:31 PM CST | Special Weather Statement | BMX | 29 min |
| Feb 20, 10:24 PM CST | Dense Fog Advisory | BMX | 11 hr |
| Feb 21, 10:10 AM CST | River Flood Warning | BMX | 21 days |
| Feb 21, 5:40 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 21, 6:24 PM CST | Special Weather Statement | BMX | 36 min |
| Feb 21, 7:48 PM CST | River Flood Warning | BMX | 15 days |
| Feb 23, 3:01 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 3, 9:59 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 11:03 AM CST | Tornado Watch | SPC | 7 hr |
| Mar 3, 12:24 PM CST | Areal Flood Advisory | BMX | 4 hr |
| Mar 4, 4:19 AM CST | Freeze Warning | BMX | 3 days |
| Mar 14, 5:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 14, 6:41 PM CDT | Tornado Watch | SPC | 5 hr |
| Mar 14, 6:50 PM CDT | Tornado Warning | BMX | 40 min |
| Mar 14, 7:22 PM CDT | Tornado Warning | BMX | 34 min |
| Mar 14, 8:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 25, 4:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 25, 4:45 PM CDT | Special Weather Statement | BMX | 30 min |
| Mar 25, 4:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Mar 25, 4:58 PM CDT | Severe Thunderstorm Warning | BMX | 47 min |
| Mar 25, 5:07 PM CDT | Severe Thunderstorm Warning | BMX | 38 min |
| Mar 31, 2:58 AM CDT | Special Weather Statement | BMX | 32 min |
| Apr 6, 7:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 6, 8:46 PM CDT | Special Weather Statement | BMX | 29 min |
| Apr 6, 8:55 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Apr 6, 10:40 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Apr 10, 12:38 AM CDT | Dense Fog Advisory | BMX | 8 hr |
| Apr 13, 5:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 9:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 14, 12:15 AM CDT | Wind Advisory | BMX | 21 hr |
| Apr 14, 1:04 AM CDT | Tornado Watch | SPC | 9 hr |
| Apr 14, 4:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 14, 5:15 AM CDT | Special Weather Statement | BMX | 45 min |
| Apr 14, 5:36 AM CDT | Mesoscale Discussion | SPC | 54 min |
| 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, 6:53 PM CDT | Severe Thunderstorm Warning | BMX | 82 min |
| May 4, 11:58 AM CDT | Mesoscale Discussion | SPC | 77 min |
| May 9, 12:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 11, 3:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 6, 8:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 7, 11:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 12:17 PM CDT | Special Weather Statement | BMX | 43 min |
| Jun 9, 5:19 AM CDT | Areal Flood Advisory | BMX | 116 min |
| Jun 17, 5:53 PM CDT | Special Weather Statement | BMX | 37 min |
| Jun 19, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 2:34 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 20, 3:06 AM CDT | Special Weather Statement | BMX | 54 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 22, 1:27 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 10:19 PM CDT | Severe Thunderstorm Warning | BMX | 26 min |
| Jun 25, 10:43 PM CDT | Special Weather Statement | BMX | 32 min |
| Jun 27, 4:50 PM CDT | Special Weather Statement | BMX | 25 min |
| Jun 29, 5:06 PM CDT | Special Weather Statement | BMX | 24 min |
| Jun 30, 4:20 AM CDT | Dense Fog Advisory | BMX | 4 hr |
| Jul 6, 3:02 AM CDT | Heat Advisory | BMX | 16 hr |
| Jul 7, 12:21 PM CDT | Special Weather Statement | BMX | 39 min |
| Jul 7, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 12:56 PM CDT | Special Weather Statement | BMX | 49 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, 6:52 PM CDT | Special Weather Statement | BMX | 38 min |
| Jul 18, 4:49 PM CDT | Areal Flood Advisory | BMX | 116 min |
| Jul 19, 11:54 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 19, 2:03 PM CDT | Areal Flood Advisory | BMX | 117 min |
| Jul 31, 12:30 PM CDT | Special Weather Statement | BMX | 30 min |
| Aug 1, 1:53 PM CDT | Special Weather Statement | BMX | 37 min |
| Aug 3, 2:16 PM CDT | Special Weather Statement | BMX | 29 min |
| Aug 3, 3:22 PM CDT | Special Weather Statement | BMX | 38 min |
| Aug 4, 2:32 PM CDT | Special Weather Statement | BMX | 28 min |
| Aug 8, 3:53 AM CDT | Heat Advisory | BMX | 60 hr |
| 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 14, 12:42 AM CDT | Special Weather Statement | BMX | 33 min |
| Aug 18, 6:28 PM CDT | Special Weather Statement | BMX | 32 min |
| Aug 19, 4:48 AM CDT | Heat Advisory | BMX | 16 hr |
| Aug 20, 4:46 PM CDT | Special Weather Statement | BMX | 29 min |
| Aug 24, 2:08 PM CDT | Special Weather Statement | BMX | 37 min |
| Aug 27, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 6:37 PM CDT | Special Weather Statement | BMX | 53 min |
| Sep 6, 2:12 PM CDT | Heat Advisory | BMX | 3 days |
| Sep 9, 2:53 PM CDT | Severe Thunderstorm Warning | BMX | 35 min |
| Sep 9, 3:39 PM CDT | Special Weather Statement | BMX | 36 min |
| Sep 9, 4:14 PM CDT | Special Weather Statement | BMX | 46 min |
| Sep 14, 4:55 PM CDT | Special Weather Statement | BMX | 35 min |
| Oct 26, 4:27 AM CDT | Wind Advisory | BMX | 14 hr |
| Oct 27, 9:53 PM CDT | Dense Fog Advisory | BMX | 13 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 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 1, 12:20 AM CST | Special Weather Statement | BMX | 55 min |
| Dec 7, 12:38 AM CST | Dense Fog Advisory | BMX | 5 hr |
| Dec 16, 3:47 PM CST | Tornado Watch | SPC | 10 hr |
| Dec 16, 8:58 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 16, 9:38 PM CST | Severe Thunderstorm Warning | BMX | 67 min |
| Dec 16, 9:47 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 16, 9:59 PM CST | Tornado Warning | BMX | 31 min |
| Dec 22, 3:53 AM CST | Wind Advisory | BMX | 20 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 | 6 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 29 |
| Flooding | |
| River Flood Warning | 2 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
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.