Alert archive / Alabama / Crenshaw County
Weather alerts in Crenshaw County, Alabama, 2009
186 weather alerts in 2009, 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 2009. Tap one for its archive.
- Alerts
- 186
- Warnings
- 61
- Watches
- 48
- Advisories
- 29
- Busiest month
- March30 alerts
- Busiest day
- March 28, 20098 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 4 tornado warnings covering Crenshaw County in 2009 had a tornado report inside them.
Crenshaw County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 21 | 7 | 67% | 6 | 67% | 23 min |
| Flash flood warnings | 3 | 2 | 33% | 5 | 20% | 50 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Mobile, AL: tornado warnings | 53 | 2 | 96% | 5 | 60% | 23 min |
| NWS Mobile, AL: severe thunderstorm warnings | 313 | 51 | 84% | 92 | 73% | 24 min |
| NWS Mobile, AL: flash flood warnings | 77 | 28 | 64% | 58 | 78% | 84 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 2, 11:59 PM CST | Dense Fog Advisory | MOB | 10 hr |
| Jan 3, 5:32 PM CST | Areal Flood Advisory | MOB | 2 hr |
| Jan 4, 10:24 PM CST | Dense Fog Advisory | MOB | 11 hr |
| Jan 5, 2:37 PM CST | Flash Flood Watch | MOB | 37 hr |
| Jan 6, 7:02 PM CST | Mesoscale Discussion | SPC | 118 min |
| Jan 6, 10:51 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 10, 4:50 PM CST | Mesoscale Discussion | SPC | 85 min |
| Jan 13, 1:52 PM CST | Fire Weather Watch | MOB | 40 hr |
| Jan 13, 1:52 PM CST | Red Flag Warning | MOB | 28 hr |
| Jan 13, 3:25 PM CST | Hard Freeze Watch | MOB | 29 hr |
| Jan 14, 2:09 PM CST | Fire Weather Watch | MOB | 16 hr |
| Jan 14, 8:44 PM CST | Hard Freeze Warning | MOB | 36 hr |
| Jan 15, 4:41 AM CST | Hard Freeze Watch | MOB | 7 hr |
| Jan 15, 6:08 AM CST | Red Flag Warning | MOB | 42 hr |
| Jan 15, 12:10 PM CST | Hard Freeze Warning | MOB | 45 hr |
| Jan 15, 2:42 PM CST | Fire Weather Watch | MOB | 38 hr |
| Jan 16, 5:32 AM CST | Red Flag Warning | MOB | 36 hr |
| Jan 19, 9:15 PM CST | Hard Freeze Watch | MOB | 6 hr |
| Jan 20, 3:18 AM CST | Hard Freeze Warning | MOB | 29 hr |
| Jan 20, 2:33 PM CST | Red Flag Warning | MOB | 27 hr |
| Jan 21, 2:57 PM CST | Hard Freeze Warning | MOB | 17 hr |
| Jan 26, 4:20 AM CST | Dense Fog Advisory | MOB | 5 hr |
| Jan 26, 11:02 PM CST | Dense Fog Advisory | MOB | 10 hr |
| Feb 2, 5:44 AM CST | Fire Weather Watch | MOB | 24 hr |
| Feb 2, 5:44 AM CST | Red Flag Warning | MOB | 35 hr |
| Feb 2, 5:44 AM CST | Red Flag Warning | MOB | 60 hr |
| Feb 2, 2:52 PM CST | Freeze Watch | MOB | 13 hr |
| Feb 3, 4:11 AM CST | Hard Freeze Watch | MOB | 24 hr |
| Feb 3, 4:11 AM CST | Hard Freeze Warning | MOB | 28 hr |
| Feb 3, 5:53 AM CST | Fire Weather Watch | MOB | 24 hr |
| Feb 3, 5:53 AM CST | Red Flag Warning | MOB | 60 hr |
| Feb 4, 4:08 AM CST | Hard Freeze Warning | MOB | 29 hr |
| Feb 4, 2:07 PM CST | Hard Freeze Watch | MOB | 15 hr |
| Feb 5, 5:16 AM CST | Hard Freeze Warning | MOB | 27 hr |
| Feb 11, 9:36 AM CST | Mesoscale Discussion | SPC | 84 min |
| Feb 18, 2:51 PM CST | Red Flag Warning | MOB | 51 hr |
| Feb 18, 7:14 PM CST | Mesoscale Discussion | SPC | 61 min |
| Feb 18, 7:42 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 18, 10:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Feb 21, 12:51 PM CST | Red Flag Warning | MOB | 3 hr |
| Feb 22, 6:01 AM CST | Fire Weather Watch | MOB | 10 hr |
| Feb 22, 6:01 AM CST | Fire Weather Watch | MOB | 48 hr |
| Feb 22, 6:01 AM CST | Red Flag Warning | MOB | 36 hr |
| Feb 23, 5:46 AM CST | Red Flag Warning | MOB | 35 hr |
| Feb 27, 2:04 PM CST | Mesoscale Discussion | SPC | 56 min |
| Feb 27, 5:29 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 6:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Feb 27, 7:45 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 28, 5:40 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 28, 9:49 AM CST | Mesoscale Discussion | SPC | 86 min |
| Feb 28, 3:02 PM CST | Wind Advisory | MOB | 27 hr |
| Mar 1, 6:31 AM CST | Fire Weather Watch | MOB | 32 hr |
| Mar 1, 8:49 AM CST | Winter Weather Advisory | MOB | 5 hr |
| Mar 2, 2:39 PM CST | Red Flag Warning | MOB | 27 hr |
| Mar 5, 10:27 PM CST | Dense Fog Advisory | MOB | 11 hr |
| Mar 7, 1:18 AM CST | Dense Fog Advisory | MOB | 8 hr |
| Mar 8, 5:02 AM CDT | Dense Fog Advisory | MOB | 4 hr |
| Mar 9, 12:10 PM CDT | Dense Fog Advisory | MOB | 23 hr |
| Mar 10, 11:47 PM CDT | Dense Fog Advisory | MOB | 12 hr |
| Mar 15, 9:47 AM CDT | Areal Flood Advisory | MOB | 103 min |
| Mar 16, 2:42 PM CDT | Dense Fog Advisory | MOB | 15 hr |
| Mar 25, 2:40 PM CDT | Flash Flood Watch | MOB | 70 hr |
| Mar 26, 1:36 AM CDT | Tornado Watch | SPC | 9 hr |
| Mar 26, 6:01 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 26, 7:06 AM CDT | Severe Thunderstorm Warning | MOB | 54 min |
| Mar 26, 7:37 AM CDT | Tornado Warning | MOB | 53 min |
| Mar 26, 7:56 AM CDT | Severe Thunderstorm Warning | MOB | 34 min |
| Mar 27, 5:46 AM CDT | Tornado Warning | MOB | 59 min |
| Mar 27, 5:49 AM CDT | Tornado Warning | MOB | 41 min |
| Mar 27, 10:09 PM CDT | Tornado Watch | SPC | 9 hr |
| Mar 27, 11:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 28, 3:14 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Mar 28, 4:25 AM CDT | Mesoscale Discussion | SPC | 35 min |
| Mar 28, 4:50 AM CDT | Tornado Watch | SPC | 5 hr |
| Mar 28, 6:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| Mar 28, 8:48 AM CDT | River Flood Warning | MOB | 50 hr |
| Mar 28, 12:32 PM CDT | Areal Flood Warning | MOB | 12 hr |
| Mar 30, 3:23 PM CDT | Flash Flood Watch | MOB | 33 hr |
| Mar 31, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 1:42 PM CDT | Severe Thunderstorm Warning | MOB | 44 min |
| Mar 31, 4:25 PM CDT | Areal Flood Advisory | MOB | 6 hr |
| Mar 31, 7:11 PM CDT | River Flood Warning | MOB | 8 hr |
| Apr 1, 9:19 AM CDT | River Flood Warning | MOB | 13 hr |
| Apr 2, 5:57 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 2, 6:29 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 2, 7:21 AM CDT | Tornado Warning | MOB | 39 min |
| Apr 2, 1:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 2, 1:33 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 2, 3:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 5, 5:57 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 5, 6:20 AM CDT | Freeze Watch | MOB | 32 hr |
| Apr 5, 3:46 PM CDT | Wind Advisory | MOB | 27 hr |
| Apr 5, 4:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 5, 5:05 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 5, 8:28 PM CDT | Severe Thunderstorm Warning | MOB | 47 min |
| Apr 6, 5:37 AM CDT | Freeze Watch | MOB | 24 hr |
| Apr 6, 2:06 PM CDT | Freeze Warning | MOB | 16 hr |
| Apr 7, 5:43 AM CDT | Freeze Warning | MOB | 26 hr |
| Apr 7, 7:00 AM CDT | Fire Weather Watch | MOB | 23 hr |
| Apr 10, 10:51 PM CDT | Severe Thunderstorm Warning | MOB | 39 min |
| Apr 12, 10:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 12, 11:01 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 13, 1:57 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 13, 2:15 AM CDT | Severe Thunderstorm Warning | MOB | 45 min |
| Apr 13, 2:33 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 4:32 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 13, 11:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 19, 6:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 20, 12:22 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 24, 3:07 AM CDT | Dense Fog Advisory | MOB | 5 hr |
| May 3, 10:56 AM CDT | Mesoscale Discussion | SPC | 64 min |
| May 3, 11:35 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 3, 1:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 3, 2:51 PM CDT | Severe Thunderstorm Warning | MOB | 54 min |
| May 3, 3:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 4, 1:30 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 4, 2:34 AM CDT | Tornado Watch | SPC | 5 hr |
| May 4, 4:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 7:33 AM CDT | Tornado Watch | SPC | 6 hr |
| May 4, 9:13 AM CDT | Severe Thunderstorm Warning | MOB | 32 min |
| May 6, 12:37 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 6, 3:33 PM CDT | Severe Thunderstorm Warning | MOB | 57 min |
| May 6, 3:34 PM CDT | Flash Flood Watch | MOB | 5 hr |
| May 6, 4:58 PM CDT | Severe Thunderstorm Warning | MOB | 47 min |
| May 7, 1:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 7, 6:21 PM CDT | Severe Thunderstorm Warning | MOB | 39 min |
| May 7, 6:58 PM CDT | Severe Thunderstorm Warning | MOB | 25 min |
| May 10, 11:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 23, 2:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 25, 12:52 PM CDT | Severe Thunderstorm Warning | MOB | 23 min |
| Jun 14, 1:34 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 24, 1:28 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 24, 2:10 PM CDT | Severe Thunderstorm Warning | MOB | 38 min |
| Jun 27, 4:10 PM CDT | Excessive Heat Watch | MOB | 7 hr |
| Jun 27, 11:30 PM CDT | Heat Advisory | MOB | 18 hr |
| Jun 28, 6:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 12:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 5, 1:06 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 3:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 5, 5:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 5, 6:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 8, 12:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 16, 4:00 PM CDT | Severe Thunderstorm Warning | MOB | 30 min |
| Aug 11, 9:21 PM CDT | Severe Thunderstorm Warning | MOB | 24 min |
| Aug 16, 5:39 AM CDT | Inland Tropical Storm Warning | MOB | 23 hr |
| Aug 16, 7:45 PM CDT | Flash Flood Watch | MOB | 23 hr |
| Aug 17, 12:15 AM CDT | Hurricane Local Statement | MOB | 4 hr |
| Aug 21, 4:03 PM CDT | Areal Flood Advisory | MOB | 4 hr |
| Aug 27, 2:11 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 27, 4:48 PM CDT | Areal Flood Advisory | MOB | 117 min |
| Aug 30, 12:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 15, 8:15 PM CDT | Severe Thunderstorm Warning | MOB | 45 min |
| Sep 15, 8:25 PM CDT | Flash Flood Warning | MOB | 2 hr |
| Sep 15, 8:51 PM CDT | Severe Thunderstorm Warning | MOB | 39 min |
| Sep 15, 9:25 PM CDT | Severe Thunderstorm Warning | MOB | 35 min |
| Sep 16, 12:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 16, 1:30 PM CDT | Areal Flood Advisory | MOB | 4 hr |
| Sep 20, 3:11 PM CDT | Severe Thunderstorm Warning | MOB | 49 min |
| Oct 18, 6:11 AM CDT | Frost Advisory | MOB | 27 hr |
| Nov 8, 8:43 PM CST | Inland Tropical Storm Watch | MOB | 2 hr |
| Nov 8, 9:42 PM CST | Flash Flood Watch | MOB | 35 hr |
| Nov 8, 10:23 PM CST | Inland Tropical Storm Warning | MOB | 35 hr |
| Nov 10, 9:31 AM CST | Wind Advisory | MOB | 11 hr |
| Nov 16, 3:55 AM CST | Dense Fog Advisory | MOB | 4 hr |
| Nov 18, 2:43 AM CST | Frost Advisory | MOB | 28 hr |
| Nov 25, 3:34 PM CST | Freeze Watch | MOB | 13 hr |
| Nov 26, 4:55 AM CST | Freeze Warning | MOB | 26 hr |
| Nov 30, 3:54 PM CST | Flash Flood Watch | MOB | 43 hr |
| Dec 1, 3:16 PM CST | Wind Advisory | MOB | 27 hr |
| Dec 2, 5:05 AM CST | Severe Thunderstorm Warning | MOB | 40 min |
| Dec 5, 4:42 AM CST | Hard Freeze Warning | MOB | 24 hr |
| Dec 9, 2:20 AM CST | Mesoscale Discussion | SPC | 85 min |
| Dec 12, 11:12 PM CST | Flash Flood Watch | MOB | 9 hr |
| Dec 13, 12:51 PM CST | Dense Fog Advisory | MOB | 21 hr |
| Dec 13, 3:50 PM CST | Flash Flood Watch | MOB | 50 hr |
| Dec 14, 10:08 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 14, 10:14 AM CST | Dense Fog Advisory | MOB | 106 min |
| Dec 14, 4:53 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 14, 4:59 PM CST | Flash Flood Warning | MOB | 3 hr |
| Dec 14, 7:16 PM CST | River Flood Warning | MOB | 22 hr |
| Dec 14, 7:58 PM CST | Flash Flood Warning | MOB | 3 hr |
| Dec 15, 1:18 AM CST | Areal Flood Warning | MOB | 8 hr |
| Dec 15, 9:22 AM CST | Areal Flood Warning | MOB | 8 hr |
| Dec 17, 5:10 AM CST | Flash Flood Watch | MOB | 30 hr |
| Dec 17, 10:34 AM CST | River Flood Warning | MOB | 65 hr |
| Dec 23, 3:29 PM CST | Wind Advisory | MOB | 30 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.