Alert archive / Alabama / Crenshaw County
Weather alerts in Crenshaw County, Alabama, 2019
112 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Crenshaw County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 112
- Warnings
- 21
- Watches
- 11
- Advisories
- 25
- Busiest month
- April27 alerts
- Busiest day
- April 19, 201911 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 Crenshaw County in 2019 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 9 minutes after it went out.
Crenshaw County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 2 | 100% | 9 min |
| Severe thunderstorm warnings | 13 | 4 | 69% | 6 | 100% | 22 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 Mobile, AL: tornado warnings | 57 | 6 | 89% | 16 | 88% | 13 min |
| NWS Mobile, AL: severe thunderstorm warnings | 174 | 51 | 71% | 112 | 79% | 22 min |
| NWS Mobile, AL: flash flood warnings | 27 | 14 | 48% | 50 | 96% | 111 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, 11:44 AM CST | Dense Fog Advisory | MOB | 43 hr |
| Jan 8, 1:07 AM CST | Dense Fog Advisory | MOB | 8 hr |
| Jan 18, 8:12 PM CST | Wind Advisory | MOB | 34 hr |
| Jan 19, 9:43 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 19, 3:14 PM CST | Severe Thunderstorm Warning | MOB | 30 min |
| Jan 19, 5:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Jan 22, 2:45 PM CST | Wind Advisory | MOB | 29 hr |
| Feb 3, 10:20 PM CST | Dense Fog Advisory | MOB | 11 hr |
| Feb 12, 9:38 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 20, 1:52 PM CST | Dense Fog Advisory | MOB | 19 hr |
| Feb 24, 2:55 AM CST | Special Weather Statement | MOB | 50 min |
| Feb 24, 3:25 AM CST | Severe Thunderstorm Warning | MOB | 20 min |
| Mar 3, 9:59 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 11:03 AM CST | Tornado Watch | SPC | 7 hr |
| Mar 3, 1:20 PM CST | Mesoscale Discussion | SPC | 115 min |
| Mar 3, 1:49 PM CST | Severe Thunderstorm Warning | MOB | 41 min |
| Mar 3, 2:23 PM CST | Severe Thunderstorm Warning | MOB | 67 min |
| Mar 3, 2:31 PM CST | Tornado Warning | MOB | 29 min |
| Mar 3, 2:53 PM CST | Tornado Warning | MOB | 23 min |
| Mar 4, 4:19 AM CST | Freeze Watch | MOB | 24 hr |
| Mar 4, 4:19 AM CST | Freeze Warning | MOB | 29 hr |
| Mar 5, 3:58 AM CST | Freeze Warning | MOB | 29 hr |
| Mar 6, 2:49 AM CST | Frost Advisory | MOB | 28 hr |
| Mar 6, 9:53 AM CST | Freeze Warning | MOB | 21 hr |
| Mar 25, 4:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 25, 4:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 6, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 6, 5:01 PM CDT | Special Weather Statement | MOB | 44 min |
| Apr 12, 3:32 PM CDT | Wind Advisory | MOB | 51 hr |
| Apr 14, 2:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 14, 2:45 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 14, 4:48 AM CDT | Severe Thunderstorm Warning | MOB | 42 min |
| Apr 14, 5:26 AM CDT | Severe Thunderstorm Warning | MOB | 49 min |
| Apr 14, 6:11 AM CDT | Severe Thunderstorm Warning | MOB | 49 min |
| Apr 14, 6:25 AM CDT | Areal Flood Advisory | MOB | 3 hr |
| Apr 14, 6:43 AM CDT | Tornado Warning | MOB | 17 min |
| Apr 14, 7:25 AM CDT | Special Weather Statement | MOB | 35 min |
| Apr 18, 4:49 AM CDT | Wind Advisory | MOB | 22 hr |
| Apr 18, 3:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 3:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 18, 9:10 PM CDT | Severe Thunderstorm Warning | MOB | 65 min |
| Apr 18, 11:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 11:59 PM CDT | Special Weather Statement | MOB | 46 min |
| Apr 19, 12:12 AM CDT | Severe Thunderstorm Warning | MOB | 48 min |
| Apr 19, 12:33 AM CDT | Tornado Watch | SPC | 9 hr |
| Apr 19, 1:02 AM CDT | Special Weather Statement | MOB | 58 min |
| Apr 19, 1:28 AM CDT | Severe Thunderstorm Warning | MOB | 27 min |
| Apr 19, 2:09 AM CDT | Special Weather Statement | MOB | 51 min |
| Apr 19, 2:14 AM CDT | Areal Flood Advisory | MOB | 3 hr |
| Apr 19, 2:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 3:11 AM CDT | Special Weather Statement | MOB | 49 min |
| Apr 25, 5:19 PM CDT | Special Weather Statement | MOB | 41 min |
| Apr 25, 6:12 PM CDT | Areal Flood Advisory | MOB | 3 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 4, 3:34 PM CDT | Special Weather Statement | MOB | 56 min |
| May 8, 6:04 PM CDT | Special Weather Statement | MOB | 26 min |
| May 9, 3:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 9, 3:40 PM CDT | Special Weather Statement | MOB | 65 min |
| May 11, 10:34 PM CDT | Special Weather Statement | MOB | 41 min |
| May 19, 5:17 AM CDT | Dense Fog Advisory | MOB | 4 hr |
| May 21, 6:04 AM CDT | Dense Fog Advisory | MOB | 3 hr |
| Jun 7, 11:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 1:52 PM CDT | Special Weather Statement | MOB | 38 min |
| Jun 8, 3:25 PM CDT | Special Weather Statement | MOB | 20 min |
| Jun 9, 2:21 PM CDT | Special Weather Statement | MOB | 39 min |
| Jun 9, 2:59 PM CDT | Special Weather Statement | MOB | 46 min |
| Jun 10, 4:55 AM CDT | Dense Fog Advisory | MOB | 2 hr |
| Jun 18, 9:45 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 11:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 20, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 20, 3:34 PM CDT | Special Weather Statement | MOB | 26 min |
| Jun 20, 6:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 21, 3:25 AM CDT | Heat Advisory | MOB | 16 hr |
| Jul 5, 3:35 PM CDT | Heat Advisory | MOB | 27 hr |
| Jul 7, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 4:32 PM CDT | Special Weather Statement | MOB | 58 min |
| Jul 8, 5:53 PM CDT | Special Weather Statement | MOB | 67 min |
| Jul 9, 1:15 PM CDT | Special Weather Statement | MOB | 45 min |
| Aug 3, 1:28 PM CDT | Special Weather Statement | MOB | 62 min |
| Aug 4, 1:01 PM CDT | Special Weather Statement | MOB | 44 min |
| Aug 4, 1:37 PM CDT | Severe Thunderstorm Warning | MOB | 33 min |
| Aug 4, 2:19 PM CDT | Severe Thunderstorm Warning | MOB | 41 min |
| Aug 9, 3:03 PM CDT | Heat Advisory | MOB | 4 days |
| Aug 13, 4:38 AM CDT | Excessive Heat Warning | MOB | 14 hr |
| Aug 13, 4:38 AM CDT | Heat Advisory | MOB | 38 hr |
| Aug 14, 12:50 PM CDT | Special Weather Statement | MOB | 40 min |
| Aug 14, 1:32 PM CDT | Special Weather Statement | MOB | 43 min |
| Aug 14, 1:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 1:58 PM CDT | Areal Flood Advisory | MOB | 2 hr |
| Aug 23, 4:33 PM CDT | Special Weather Statement | MOB | 42 min |
| Aug 23, 4:57 PM CDT | Special Weather Statement | MOB | 48 min |
| Aug 25, 5:00 PM CDT | Special Weather Statement | MOB | 45 min |
| Aug 25, 5:32 PM CDT | Special Weather Statement | MOB | 43 min |
| Aug 31, 6:59 PM CDT | Special Weather Statement | MOB | 61 min |
| Sep 6, 2:41 PM CDT | Heat Advisory | MOB | 52 hr |
| Sep 9, 2:27 PM CDT | Severe Thunderstorm Warning | MOB | 27 min |
| Oct 26, 5:56 AM CDT | Wind Advisory | MOB | 7 hr |
| Nov 1, 4:48 AM CDT | Frost Advisory | MOB | 26 hr |
| Nov 7, 6:52 PM CST | Special Weather Statement | MOB | 53 min |
| Nov 11, 4:06 AM CST | Freeze Watch | MOB | 10 hr |
| Nov 11, 2:13 PM CST | Freeze Warning | MOB | 43 hr |
| Nov 11, 2:13 PM CST | Wind Advisory | MOB | 28 hr |
| Nov 27, 7:30 AM CST | Special Weather Statement | MOB | 45 min |
| Dec 1, 2:24 AM CST | Special Weather Statement | MOB | 51 min |
| Dec 13, 3:47 PM CST | Mesoscale Discussion | SPC | 118 min |
| Dec 14, 9:09 PM CST | Dense Fog Advisory | MOB | 13 hr |
| Dec 16, 8:58 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 16, 9:47 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 17, 2:13 AM CST | Mesoscale Discussion | SPC | 92 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 | 13 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
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.