Alert archive / Missouri / Madison County
Weather alerts in Madison County, Missouri, 2019
108 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Madison County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 108
- Warnings
- 17
- Watches
- 26
- Advisories
- 34
- Busiest month
- May20 alerts
- Busiest day
- May 1, 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.
0 of 1 tornado reports fell inside a warning.
Madison County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 10 | 3 | 70% | 6 | 33% | 30 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS St. Louis, MO: tornado warnings | 49 | 9 | 82% | 29 | 59% | 23 min |
| NWS St. Louis, MO: severe thunderstorm warnings | 241 | 129 | 46% | 389 | 76% | 24 min |
| NWS St. Louis, MO: flash flood warnings | 55 | 31 | 44% | 127 | 94% | 128 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 10, 3:33 AM CST | Winter Storm Watch | LSX | 12 hr |
| Jan 10, 3:31 PM CST | Winter Storm Warning | LSX | 62 hr |
| Jan 11, 10:37 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 2:45 AM CST | Winter Weather Advisory | LSX | 41 hr |
| Jan 28, 3:49 PM CST | Wind Chill Advisory | LSX | 44 hr |
| Jan 30, 3:47 AM CST | Winter Weather Advisory | LSX | 19 hr |
| Jan 31, 2:41 PM CST | Winter Weather Advisory | LSX | 12 hr |
| Feb 2, 3:34 AM CST | Dense Fog Advisory | LSX | 8 hr |
| Feb 5, 3:44 PM CST | Flood Watch | LSX | 44 hr |
| Feb 6, 8:50 PM CST | Dense Fog Advisory | LSX | 9 hr |
| Feb 9, 3:17 AM CST | Winter Weather Advisory | LSX | 35 hr |
| Feb 10, 1:15 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 10, 3:38 AM CST | Flood Watch | LSX | 47 hr |
| Feb 14, 3:01 PM CST | Winter Weather Advisory | LSX | 32 hr |
| Feb 16, 3:25 AM CST | Winter Weather Advisory | LSX | 39 hr |
| Feb 18, 3:20 PM CST | Winter Weather Advisory | LSX | 44 hr |
| Feb 20, 9:09 AM CST | Dense Fog Advisory | LSX | 3 hr |
| Feb 22, 3:45 PM CST | Wind Advisory | LSX | 50 hr |
| Feb 23, 2:47 AM CST | Dense Fog Advisory | LSX | 9 hr |
| Feb 27, 3:16 AM CST | Winter Weather Advisory | LSX | 39 hr |
| Mar 1, 3:36 AM CST | Winter Storm Watch | LSX | 24 hr |
| Mar 2, 3:37 AM CST | Winter Weather Advisory | LSX | 35 hr |
| Mar 8, 3:03 PM CST | Wind Advisory | LSX | 33 hr |
| Mar 12, 3:30 PM CDT | Wind Advisory | LSX | 28 hr |
| Mar 13, 3:42 AM CDT | High Wind Watch | LSX | 24 hr |
| Mar 14, 3:33 AM CDT | High Wind Warning | LSX | 18 hr |
| Mar 24, 1:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 24, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 24, 5:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 24, 8:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 10, 3:37 PM CDT | Wind Advisory | LSX | 27 hr |
| Apr 14, 3:30 AM CDT | Frost Advisory | LSX | 30 hr |
| Apr 18, 1:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 23, 5:33 PM CDT | Severe Thunderstorm Warning | LSX | 42 min |
| Apr 23, 6:13 PM CDT | Special Weather Statement | LSX | 32 min |
| Apr 29, 3:28 PM CDT | Flash Flood Watch | LSX | 3 days |
| Apr 30, 7:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 30, 8:03 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 30, 10:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 30, 11:20 PM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| Apr 30, 11:44 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Apr 30, 11:51 PM CDT | Areal Flood Warning | LSX | 24 hr |
| May 18, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 18, 7:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 21, 12:55 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 21, 3:40 AM CDT | Flash Flood Watch | LSX | 20 hr |
| May 21, 3:10 PM CDT | Tornado Watch | SPC | 8 hr |
| May 21, 5:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 21, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | 76 min |
| May 21, 6:32 PM CDT | Severe Thunderstorm Warning | LSX | 88 min |
| May 21, 7:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 22, 10:26 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 2:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 28, 3:28 AM CDT | Flash Flood Watch | LSX | 41 hr |
| May 29, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 29, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 1, 11:37 PM CDT | Special Weather Statement | LSX | 38 min |
| Jun 2, 12:13 AM CDT | Special Weather Statement | LSX | 32 min |
| Jun 4, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 4, 4:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 16, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 17, 3:16 AM CDT | Flash Flood Watch | LSX | 17 hr |
| Jun 19, 7:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 8:28 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 26, 1:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 26, 6:18 PM CDT | Flash Flood Warning | LSX | 3 hr |
| Jul 9, 1:32 PM CDT | Heat Advisory | LSX | 29 hr |
| Jul 14, 2:35 AM CDT | Flash Flood Watch | LSX | 61 hr |
| Jul 16, 3:32 PM CDT | Heat Advisory | LSX | 5 days |
| Jul 17, 5:50 PM CDT | Areal Flood Advisory | LSX | 3 hr |
| Jul 22, 1:32 AM CDT | Flash Flood Warning | LSX | 8 hr |
| Aug 6, 1:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 6, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 6, 4:15 PM CDT | Severe Thunderstorm Warning | LSX | 45 min |
| Aug 6, 5:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 8, 3:29 AM CDT | Dense Fog Advisory | LSX | 4 hr |
| Aug 11, 3:43 AM CDT | Heat Advisory | LSX | 41 hr |
| Aug 18, 12:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 18, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 18, 3:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 20, 6:18 AM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Aug 20, 2:18 PM CDT | Severe Thunderstorm Warning | LSX | 57 min |
| Aug 20, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | 61 min |
| Aug 21, 3:27 PM CDT | Special Weather Statement | LSX | 48 min |
| Aug 21, 4:16 PM CDT | Special Weather Statement | LSX | 44 min |
| Aug 21, 4:58 PM CDT | Special Weather Statement | LSX | 62 min |
| Aug 21, 7:49 PM CDT | Areal Flood Advisory | LSX | 5 hr |
| Aug 26, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 27, 2:06 AM CDT | Areal Flood Advisory | LSX | 3 hr |
| Aug 30, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 1, 9:41 PM CDT | Dense Fog Advisory | LSX | 12 hr |
| Oct 11, 3:57 AM CDT | Freeze Warning | LSX | 28 hr |
| Oct 21, 1:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 21, 3:06 AM CDT | Tornado Watch | SPC | 6 hr |
| Oct 21, 3:44 AM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Oct 27, 1:54 AM CDT | Dense Fog Advisory | LSX | 8 hr |
| Oct 30, 3:23 AM CDT | Freeze Warning | LSX | 31 hr |
| Nov 10, 2:57 PM CST | Winter Weather Advisory | LSX | 28 hr |
| Nov 26, 3:22 AM CST | Wind Advisory | LSX | 33 hr |
| Nov 26, 6:20 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 26, 9:58 PM CST | Severe Thunderstorm Warning | LSX | 32 min |
| Nov 30, 2:23 PM CST | Wind Advisory | LSX | 28 hr |
| Dec 8, 1:11 AM CST | Dense Fog Advisory | LSX | 8 hr |
| Dec 14, 3:54 AM CST | Winter Storm Watch | LSX | 24 hr |
| Dec 14, 3:15 PM CST | Winter Weather Advisory | LSX | 57 hr |
| Dec 16, 10:36 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 28, 4:30 AM CST | Dense Fog Advisory | LSX | 7 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 | 10 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| 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.