Alert archive / Alabama / Jefferson County
Weather alerts in Jefferson County, Alabama, 2009
316 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 316
- Warnings
- 118
- Watches
- 58
- Advisories
- 84
- Busiest month
- April51 alerts
- Busiest day
- May 3, 200914 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
5 of 12 tornado warnings covering Jefferson County in 2009 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 29 minutes after it went out.
Jefferson County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 12 | 5 | 58% | 1 | 100% | 29 min |
| Severe thunderstorm warnings | 53 | 28 | 47% | 36 | 81% | 24 min |
| Flash flood warnings | 18 | 15 | 17% | 12 | 100% | 67 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Birmingham, AL: tornado warnings | 174 | 36 | 79% | 90 | 66% | 27 min |
| NWS Birmingham, AL: severe thunderstorm warnings | 454 | 185 | 59% | 663 | 66% | 27 min |
| NWS Birmingham, AL: flash flood warnings | 124 | 78 | 37% | 149 | 89% | 77 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, 4:09 AM CST | Dense Fog Advisory | BMX | 4 hr |
| Jan 3, 9:06 AM CST | Dense Fog Advisory | BMX | 2 hr |
| Jan 4, 4:19 AM CST | Dense Fog Advisory | BMX | 5 hr |
| Jan 5, 3:47 PM CST | Flash Flood Watch | BMX | 26 hr |
| Jan 6, 9:51 AM CST | River Flood Warning | BMX | 4 days |
| Jan 6, 11:58 AM CST | Areal Flood Advisory | BMX | 4 hr |
| Jan 6, 1:06 PM CST | Flash Flood Warning | BMX | 4 hr |
| Jan 6, 1:37 PM CST | Tornado Warning | BMX | 23 min |
| Jan 6, 1:59 PM CST | Tornado Warning | BMX | 31 min |
| Jan 6, 2:03 PM CST | Tornado Watch | SPC | 5 hr |
| Jan 6, 5:09 PM CST | Flash Flood Warning | BMX | 3 hr |
| Jan 6, 7:37 PM CST | River Flood Warning | BMX | 38 hr |
| Jan 6, 8:06 PM CST | River Flood Warning | BMX | 34 hr |
| Jan 7, 4:12 AM CST | Lake Wind Advisory | BMX | 14 hr |
| Jan 10, 6:08 PM CST | Areal Flood Advisory | BMX | 3 hr |
| Jan 13, 9:26 AM CST | Lake Wind Advisory | BMX | 11 hr |
| Jan 14, 5:24 AM CST | Fire Weather Watch | BMX | 33 hr |
| Jan 14, 5:41 AM CST | Hard Freeze Watch | BMX | 25 hr |
| Jan 15, 6:00 AM CST | Wind Chill Advisory | BMX | 22 hr |
| Jan 15, 6:37 AM CST | Hard Freeze Watch | BMX | 22 hr |
| Jan 15, 6:37 AM CST | Hard Freeze Warning | BMX | 25 hr |
| Jan 15, 6:37 AM CST | Lake Wind Advisory | BMX | 9 hr |
| Jan 15, 8:45 AM CST | Fire Weather Watch | BMX | 20 hr |
| Jan 16, 4:37 AM CST | Hard Freeze Warning | BMX | 23 hr |
| Jan 17, 5:50 AM CST | Red Flag Warning | BMX | 12 hr |
| Jan 19, 10:53 AM CST | Lake Wind Advisory | BMX | 13 hr |
| Jan 20, 3:41 AM CST | Lake Wind Advisory | BMX | 14 hr |
| Jan 23, 1:01 PM CST | Lake Wind Advisory | BMX | 5 hr |
| Jan 27, 10:19 PM CST | Lake Wind Advisory | BMX | 14 hr |
| Feb 3, 9:13 AM CST | Lake Wind Advisory | BMX | 15 hr |
| Feb 3, 2:54 PM CST | Fire Weather Watch | BMX | 37 hr |
| Feb 3, 3:47 PM CST | Hard Freeze Watch | BMX | 20 hr |
| Feb 4, 11:24 AM CST | Hard Freeze Warning | BMX | 22 hr |
| Feb 5, 4:03 AM CST | Red Flag Warning | BMX | 14 hr |
| Feb 10, 4:02 AM CST | Lake Wind Advisory | BMX | 33 hr |
| Feb 10, 3:29 PM CST | Wind Advisory | BMX | 27 hr |
| Feb 11, 11:10 AM CST | Tornado Watch | SPC | 6 hr |
| Feb 11, 1:04 PM CST | Severe Thunderstorm Warning | BMX | 26 min |
| Feb 11, 1:29 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 16, 5:57 AM CST | Red Flag Warning | BMX | 11 hr |
| Feb 18, 4:01 AM CST | Lake Wind Advisory | BMX | 14 hr |
| Feb 18, 12:42 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 18, 2:31 PM CST | Severe Thunderstorm Warning | BMX | 29 min |
| Feb 18, 2:39 PM CST | Tornado Warning | BMX | 51 min |
| Feb 18, 3:12 PM CST | Severe Thunderstorm Warning | BMX | 24 min |
| Feb 18, 3:22 PM CST | Mesoscale Discussion | SPC | 83 min |
| Feb 18, 3:53 PM CST | Severe Thunderstorm Warning | BMX | 37 min |
| Feb 18, 4:42 PM CST | Severe Thunderstorm Warning | BMX | 33 min |
| Feb 18, 5:13 PM CST | Severe Thunderstorm Warning | BMX | 47 min |
| Feb 18, 5:39 PM CST | Severe Thunderstorm Warning | BMX | 51 min |
| Feb 18, 6:13 PM CST | Severe Thunderstorm Warning | BMX | 47 min |
| Feb 18, 6:29 PM CST | Severe Thunderstorm Warning | BMX | 46 min |
| Feb 19, 4:10 AM CST | Lake Wind Advisory | BMX | 12 hr |
| Feb 19, 2:54 PM CST | Red Flag Warning | BMX | 27 hr |
| Feb 21, 6:06 PM CST | Fire Weather Watch | BMX | 10 hr |
| Feb 21, 6:06 PM CST | Fire Weather Watch | BMX | 21 hr |
| Feb 22, 2:50 PM CST | Red Flag Warning | BMX | 27 hr |
| Feb 23, 2:56 PM CST | Fire Weather Watch | BMX | 12 hr |
| Feb 24, 3:05 AM CST | Red Flag Warning | BMX | 15 hr |
| Feb 26, 12:13 PM CST | Lake Wind Advisory | BMX | 6 hr |
| Feb 27, 4:56 AM CST | Flash Flood Watch | BMX | 25 hr |
| Feb 27, 8:29 AM CST | Mesoscale Discussion | SPC | 31 min |
| Feb 27, 8:40 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 27, 10:25 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Feb 27, 11:26 AM CST | Lake Wind Advisory | BMX | 7 hr |
| Feb 27, 12:38 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 27, 2:16 PM CST | Flash Flood Warning | BMX | 3 hr |
| Feb 27, 3:48 PM CST | Severe Thunderstorm Warning | BMX | 57 min |
| Feb 27, 4:52 PM CST | Flash Flood Warning | BMX | 6 hr |
| Feb 27, 6:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Feb 27, 7:45 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 27, 10:47 PM CST | Mesoscale Discussion | SPC | 118 min |
| Feb 28, 2:15 AM CST | Mesoscale Discussion | SPC | 90 min |
| Feb 28, 4:46 AM CST | River Flood Warning | BMX | 47 hr |
| Feb 28, 4:55 AM CST | Severe Thunderstorm Warning | BMX | 50 min |
| Feb 28, 6:24 AM CST | River Flood Warning | BMX | 52 hr |
| Feb 28, 3:16 PM CST | Winter Storm Watch | BMX | 13 hr |
| Feb 28, 3:16 PM CST | Winter Weather Advisory | BMX | 26 hr |
| Mar 1, 3:28 AM CST | Wind Advisory | BMX | 18 hr |
| Mar 1, 3:47 AM CST | Winter Storm Warning | BMX | 11 hr |
| Mar 1, 11:19 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 2, 4:22 AM CST | Lake Wind Advisory | BMX | 14 hr |
| Mar 2, 4:35 AM CST | Fire Weather Watch | BMX | 23 hr |
| Mar 3, 3:55 AM CST | Red Flag Warning | BMX | 14 hr |
| Mar 3, 5:57 AM CST | Fire Weather Watch | BMX | 22 hr |
| Mar 4, 4:02 AM CST | Red Flag Warning | BMX | 14 hr |
| Mar 16, 11:52 AM CDT | Dense Fog Advisory | BMX | 21 hr |
| Mar 20, 11:10 AM CDT | Red Flag Warning | BMX | 7 hr |
| Mar 20, 2:31 PM CDT | Fire Weather Watch | BMX | 13 hr |
| Mar 21, 3:43 AM CDT | Red Flag Warning | BMX | 9 hr |
| Mar 25, 5:00 AM CDT | Lake Wind Advisory | BMX | 13 hr |
| Mar 25, 3:22 PM CDT | Flash Flood Watch | BMX | 18 hr |
| Mar 26, 1:36 AM CDT | Tornado Watch | SPC | 9 hr |
| Mar 26, 3:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Mar 28, 4:25 AM CDT | Mesoscale Discussion | SPC | 35 min |
| Mar 28, 4:59 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Mar 29, 4:21 AM CDT | Lake Wind Advisory | BMX | 14 hr |
| Mar 29, 8:56 PM CDT | Frost Advisory | BMX | 8 hr |
| Mar 31, 9:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 2, 4:35 AM CDT | Lake Wind Advisory | BMX | 15 hr |
| 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 | Severe Thunderstorm Warning | BMX | 48 min |
| Apr 2, 3:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 2, 4:14 PM CDT | Severe Thunderstorm Warning | BMX | 46 min |
| Apr 2, 4:42 PM CDT | Severe Thunderstorm Warning | BMX | 48 min |
| Apr 2, 6:02 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 2, 7:14 PM CDT | Wind Advisory | BMX | 9 hr |
| Apr 2, 8:48 PM CDT | Severe Thunderstorm Warning | BMX | 57 min |
| Apr 2, 9:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 2, 9:40 PM CDT | Severe Thunderstorm Warning | BMX | 65 min |
| Apr 2, 9:50 PM CDT | Severe Thunderstorm Warning | BMX | 55 min |
| Apr 3, 3:59 AM CDT | Lake Wind Advisory | BMX | 8 hr |
| Apr 5, 3:16 PM CDT | Freeze Watch | BMX | 23 hr |
| Apr 5, 3:16 PM CDT | Freeze Watch | BMX | 47 hr |
| Apr 6, 4:49 AM CDT | Lake Wind Advisory | BMX | 15 hr |
| Apr 6, 2:12 PM CDT | Freeze Warning | BMX | 18 hr |
| Apr 7, 4:16 AM CDT | Lake Wind Advisory | BMX | 12 hr |
| Apr 7, 1:59 PM CDT | Freeze Warning | BMX | 18 hr |
| Apr 8, 6:28 AM CDT | Lake Wind Advisory | BMX | 12 hr |
| Apr 10, 1:43 AM CDT | Tornado Watch | SPC | 5 hr |
| Apr 10, 4:25 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 10, 5:40 AM CDT | Lake Wind Advisory | BMX | 7 hr |
| Apr 10, 11:23 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 10, 12:35 PM CDT | Wind Advisory | BMX | 6 hr |
| Apr 10, 2:39 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 10, 3:30 PM CDT | Severe Thunderstorm Warning | BMX | 30 min |
| Apr 10, 3:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 10, 4:31 PM CDT | Severe Thunderstorm Warning | BMX | 44 min |
| Apr 10, 4:43 PM CDT | Severe Thunderstorm Warning | BMX | 47 min |
| Apr 10, 4:57 PM CDT | Severe Thunderstorm Warning | BMX | 48 min |
| Apr 12, 8:45 PM CDT | Wind Advisory | BMX | 4 hr |
| Apr 12, 10:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 13, 12:41 AM CDT | High Wind Warning | BMX | 7 hr |
| Apr 13, 5:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 13, 6:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 19, 4:36 AM CDT | Lake Wind Advisory | BMX | 13 hr |
| Apr 19, 2:19 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 4:10 PM CDT | Severe Thunderstorm Warning | BMX | 28 min |
| Apr 19, 4:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 19, 4:52 PM CDT | Severe Thunderstorm Warning | BMX | 38 min |
| Apr 19, 5:04 PM CDT | Tornado Warning | BMX | 24 min |
| Apr 19, 7:38 PM CDT | Severe Thunderstorm Warning | BMX | 52 min |
| Apr 19, 7:47 PM CDT | Tornado Warning | BMX | 17 min |
| Apr 19, 7:52 PM CDT | Severe Thunderstorm Warning | BMX | 38 min |
| Apr 19, 8:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 19, 8:23 PM CDT | Severe Thunderstorm Warning | BMX | 52 min |
| Apr 19, 8:45 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 21, 3:56 AM CDT | Wind Advisory | BMX | 14 hr |
| May 2, 2:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 2, 2:55 PM CDT | Tornado Watch | SPC | 6 hr |
| May 2, 5:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 2, 7:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 2, 7:34 PM CDT | Tornado Warning | BMX | 56 min |
| May 2, 8:19 PM CDT | Tornado Warning | BMX | 41 min |
| May 2, 8:43 PM CDT | Tornado Watch | SPC | 6 hr |
| May 2, 10:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 3, 7:18 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 3, 7:44 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 3, 10:56 AM CDT | Mesoscale Discussion | SPC | 64 min |
| May 3, 12:54 PM CDT | Tornado Warning | BMX | 51 min |
| May 3, 1:23 PM CDT | Tornado Warning | BMX | 67 min |
| May 3, 1:40 PM CDT | Severe Thunderstorm Warning | BMX | 50 min |
| May 3, 1:42 PM CDT | Flash Flood Warning | BMX | 2 hr |
| May 3, 1:46 PM CDT | Tornado Warning | BMX | 44 min |
| May 3, 2:02 PM CDT | Tornado Warning | BMX | 58 min |
| May 5, 11:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 6, 1:27 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 6, 3:05 AM CDT | Mesoscale Discussion | SPC | 115 min |
| May 6, 4:03 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 6, 4:50 AM CDT | Flash Flood Watch | BMX | 13 hr |
| May 6, 7:22 AM CDT | Mesoscale Discussion | SPC | 83 min |
| May 6, 9:04 AM CDT | Mesoscale Discussion | SPC | 56 min |
| May 6, 9:13 AM CDT | Severe Thunderstorm Warning | BMX | 62 min |
| May 6, 9:27 AM CDT | Tornado Watch | SPC | 9 hr |
| May 6, 9:44 AM CDT | Tornado Warning | BMX | 9 min |
| May 6, 10:08 AM CDT | Severe Thunderstorm Warning | BMX | 52 min |
| May 6, 10:27 AM CDT | Severe Thunderstorm Warning | BMX | 33 min |
| May 8, 3:40 AM CDT | Lake Wind Advisory | BMX | 14 hr |
| May 9, 5:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 9, 7:01 PM CDT | Flash Flood Watch | BMX | 22 hr |
| May 10, 11:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| May 12, 6:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 15, 11:14 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 16, 9:54 AM CDT | Flash Flood Watch | BMX | 33 hr |
| May 16, 9:58 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| May 16, 6:23 PM CDT | Severe Thunderstorm Warning | BMX | 37 min |
| May 26, 9:13 AM CDT | Areal Flood Advisory | BMX | 3 hr |
| Jun 12, 2:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 12, 3:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 12, 4:23 PM CDT | Severe Thunderstorm Warning | BMX | 37 min |
| Jun 12, 4:51 PM CDT | Areal Flood Advisory | BMX | 114 min |
| Jun 12, 4:55 PM CDT | Severe Thunderstorm Warning | BMX | 50 min |
| Jun 12, 5:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 12, 6:01 PM CDT | Severe Thunderstorm Warning | BMX | 29 min |
| Jun 12, 7:39 PM CDT | Severe Thunderstorm Warning | BMX | 51 min |
| Jun 12, 7:47 PM CDT | Severe Thunderstorm Warning | BMX | 43 min |
| Jun 12, 8:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 12, 8:14 PM CDT | Severe Thunderstorm Warning | BMX | 46 min |
| Jun 12, 8:36 PM CDT | Severe Thunderstorm Warning | BMX | 39 min |
| Jun 13, 8:13 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jun 14, 8:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 14, 8:50 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 10:45 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 14, 10:48 AM CDT | Severe Thunderstorm Warning | BMX | 27 min |
| Jun 14, 11:16 AM CDT | Severe Thunderstorm Warning | BMX | 59 min |
| Jun 14, 11:21 AM CDT | Flash Flood Warning | BMX | 114 min |
| Jun 14, 11:27 AM CDT | Severe Thunderstorm Warning | BMX | 48 min |
| Jun 15, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 7:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 15, 9:25 PM CDT | Severe Thunderstorm Warning | BMX | 50 min |
| Jun 15, 9:56 PM CDT | Severe Thunderstorm Warning | BMX | 49 min |
| Jun 28, 11:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 28, 12:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 2:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 28, 3:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 28, 3:58 PM CDT | Severe Thunderstorm Warning | BMX | 17 min |
| Jun 28, 6:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 6:05 AM CDT | Red Flag Warning | BMX | 13 hr |
| Jul 12, 5:48 PM CDT | Severe Thunderstorm Warning | BMX | 27 min |
| Jul 12, 6:15 PM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 12, 6:31 PM CDT | Severe Thunderstorm Warning | BMX | 29 min |
| Jul 12, 7:01 PM CDT | Areal Flood Advisory | BMX | 119 min |
| Jul 13, 1:45 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 13, 7:28 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Jul 13, 7:45 AM CDT | Flash Flood Warning | BMX | 3 hr |
| Jul 13, 7:53 AM CDT | Flash Flood Warning | BMX | 3 hr |
| Jul 30, 5:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 30, 5:38 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 30, 6:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Aug 1, 4:55 AM CDT | Dense Fog Advisory | BMX | 3 hr |
| Aug 16, 7:40 PM CDT | Lake Wind Advisory | BMX | 17 hr |
| Aug 20, 4:51 PM CDT | Severe Thunderstorm Warning | BMX | 39 min |
| Aug 20, 4:59 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 5, 9:53 AM CDT | Areal Flood Advisory | BMX | 112 min |
| Sep 11, 3:29 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 17, 5:46 PM CDT | Severe Thunderstorm Warning | BMX | 44 min |
| Sep 17, 6:19 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 17, 6:37 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 17, 8:06 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 17, 9:26 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 18, 12:33 AM CDT | Flash Flood Warning | BMX | 5 hr |
| Sep 18, 2:57 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Sep 18, 5:02 AM CDT | Flash Flood Watch | BMX | 5 days |
| Sep 18, 6:48 AM CDT | River Flood Warning | BMX | 14 hr |
| Sep 19, 2:54 AM CDT | Areal Flood Advisory | BMX | 111 min |
| Sep 19, 6:33 AM CDT | River Flood Warning | BMX | 3 hr |
| Sep 19, 8:23 AM CDT | River Flood Warning | BMX | 24 hr |
| Sep 19, 12:18 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 20, 9:19 AM CDT | Areal Flood Advisory | BMX | 116 min |
| Sep 20, 2:06 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Sep 20, 8:56 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 21, 12:05 AM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 21, 9:56 AM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 21, 12:53 PM CDT | Flash Flood Warning | BMX | 3 hr |
| Sep 26, 4:15 AM CDT | Flash Flood Watch | BMX | 16 hr |
| Sep 26, 8:33 AM CDT | Severe Thunderstorm Warning | BMX | 21 min |
| Sep 26, 10:25 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 26, 11:23 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 26, 12:24 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Oct 9, 1:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Oct 9, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Oct 9, 5:12 PM CDT | Severe Thunderstorm Warning | BMX | 34 min |
| Oct 9, 5:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 11, 9:20 PM CDT | Flash Flood Watch | BMX | 19 hr |
| Oct 12, 2:30 AM CDT | Areal Flood Advisory | BMX | 2 hr |
| Oct 12, 5:47 AM CDT | Flash Flood Warning | BMX | 4 hr |
| Oct 12, 10:02 AM CDT | River Flood Warning | BMX | 13 hr |
| Oct 13, 9:06 AM CDT | Flash Flood Watch | BMX | 19 hr |
| Oct 13, 9:07 PM CDT | River Flood Warning | BMX | 13 hr |
| Oct 13, 11:04 PM CDT | Areal Flood Advisory | BMX | 3 hr |
| Oct 17, 9:27 AM CDT | Lake Wind Advisory | BMX | 9 hr |
| Oct 17, 2:53 PM CDT | Freeze Watch | BMX | 22 hr |
| Oct 18, 12:26 PM CDT | Frost Advisory | BMX | 21 hr |
| Oct 18, 5:02 PM CDT | Freeze Warning | BMX | 16 hr |
| Oct 22, 2:44 PM CDT | Lake Wind Advisory | BMX | 20 hr |
| Oct 23, 2:26 AM CDT | Wind Advisory | BMX | 7 hr |
| Oct 24, 3:35 PM CDT | Frost Advisory | BMX | 5 hr |
| Oct 30, 3:41 AM CDT | Lake Wind Advisory | BMX | 27 hr |
| Oct 30, 2:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Oct 30, 5:20 PM CDT | Tornado Watch | SPC | 3 hr |
| Oct 30, 7:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Nov 5, 10:55 AM CST | Fire Weather Watch | BMX | 4 hr |
| Nov 5, 2:55 PM CST | Red Flag Warning | BMX | 27 hr |
| Nov 5, 3:29 PM CST | Frost Advisory | BMX | 17 hr |
| Nov 8, 2:32 PM CST | Lake Wind Advisory | BMX | 29 hr |
| Nov 8, 2:32 PM CST | Wind Advisory | BMX | 52 hr |
| Nov 9, 4:17 AM CST | Flood Watch | BMX | 44 hr |
| Nov 10, 8:49 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Nov 10, 12:42 PM CST | Areal Flood Warning | BMX | 4 hr |
| Nov 10, 3:29 PM CST | Areal Flood Warning | BMX | 3 hr |
| Nov 10, 6:02 PM CST | Lake Wind Advisory | BMX | 21 hr |
| Nov 10, 6:22 PM CST | Areal Flood Warning | BMX | 4 hr |
| Nov 10, 8:55 PM CST | River Flood Warning | BMX | 33 hr |
| Nov 18, 3:09 AM CST | Frost Advisory | BMX | 28 hr |
| Nov 19, 12:47 PM CST | Frost Advisory | BMX | 19 hr |
| Dec 1, 2:41 PM CST | Wind Advisory | BMX | 30 hr |
| Dec 4, 11:18 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 8, 4:36 AM CST | Lake Wind Advisory | BMX | 24 hr |
| Dec 8, 5:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Dec 8, 6:12 PM CST | Tornado Watch | SPC | 8 hr |
| Dec 8, 9:47 PM CST | Mesoscale Discussion | SPC | 88 min |
| Dec 8, 10:22 PM CST | Severe Thunderstorm Warning | BMX | 33 min |
| Dec 8, 10:37 PM CST | Severe Thunderstorm Warning | BMX | 38 min |
| Dec 9, 12:09 AM CST | Severe Thunderstorm Warning | BMX | 51 min |
| Dec 9, 12:25 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Dec 9, 4:16 AM CST | Wind Advisory | BMX | 13 hr |
| Dec 10, 4:10 PM CST | Fire Weather Watch | BMX | 13 hr |
| Dec 11, 4:56 AM CST | Red Flag Warning | BMX | 13 hr |
| Dec 13, 2:42 PM CST | Dense Fog Advisory | BMX | 21 hr |
| Dec 14, 2:49 PM CST | Dense Fog Advisory | BMX | 12 hr |
| Dec 17, 8:52 AM CST | Flash Flood Watch | BMX | 27 hr |
| Dec 17, 9:00 PM CST | Wind Advisory | BMX | 15 hr |
| Dec 18, 7:24 AM CST | Areal Flood Advisory | BMX | 3 hr |
| Dec 23, 2:46 PM CST | Wind Advisory | BMX | 36 hr |
| Dec 25, 4:08 AM CST | Wind Advisory | BMX | 8 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.