Alert archive / Missouri / Saint Charles County
Weather alerts in Saint Charles County, Missouri, 2026
122 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Saint Charles County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 122
- Warnings
- 51
- Watches
- 22
- Advisories
- 23
- Busiest month
- April34 alerts
- Busiest day
- April 27, 202618 alerts
Over time
By month
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 8, 3:14 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 21, 2:42 AM CST | Winter Storm Watch | LSX | 35 hr |
| Jan 22, 2:29 AM CST | Cold Weather Advisory | LSX | 58 hr |
| Jan 22, 1:15 PM CST | Winter Storm Warning | LSX | 3 days |
| Jan 24, 1:38 PM CST | Cold Weather Advisory | LSX | 46 hr |
| Jan 25, 1:55 AM CST | Extreme Cold Warning | LSX | 34 hr |
| Feb 19, 4:23 AM CST | Dense Fog Advisory | LSX | 5 hr |
| Feb 19, 10:44 AM CST | Mesoscale Discussion | SPC | 91 min |
| Feb 27, 12:28 AM CST | Red Flag Warning | LSX | 18 hr |
| Mar 1, 1:34 AM CST | Winter Weather Advisory | LSX | 23 hr |
| Mar 6, 12:38 AM CST | Dense Fog Advisory | LSX | 5 hr |
| Mar 6, 10:28 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 11, 2:48 AM CDT | Severe Thunderstorm Warning | LSX | 27 min |
| Mar 11, 3:17 AM CDT | Severe Thunderstorm Warning | LSX | 43 min |
| Mar 14, 10:45 AM CDT | Wind Advisory | LSX | 49 hr |
| Mar 15, 12:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 1:33 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 15, 3:44 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Mar 15, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | 44 min |
| Mar 27, 11:40 AM CDT | Freeze Warning | LSX | 21 hr |
| Apr 2, 3:46 AM CDT | Wind Advisory | LSX | 15 hr |
| Apr 2, 5:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 6:50 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 17, 3:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 17, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | 50 min |
| Apr 17, 3:26 PM CDT | Severe Thunderstorm Warning | LSX | 49 min |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 17, 4:11 PM CDT | Severe Thunderstorm Warning | LSX | 25 min |
| Apr 17, 8:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 9:42 PM CDT | Severe Thunderstorm Warning | LSX | 48 min |
| Apr 17, 10:14 PM CDT | Severe Thunderstorm Warning | LSX | 31 min |
| Apr 19, 11:38 AM CDT | River Flood Warning | LSX | 21 days |
| Apr 27, 4:07 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 27, 7:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 27, 9:33 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | 10 hr |
| Apr 27, 11:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | 48 min |
| Apr 27, 12:50 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 27, 1:25 PM CDT | Severe Thunderstorm Warning | LSX | 37 min |
| Apr 27, 2:39 PM CDT | Severe Thunderstorm Warning | LSX | 51 min |
| Apr 27, 2:49 PM CDT | Tornado Warning | LSX | 41 min |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | 41 min |
| Apr 27, 3:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | 36 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Apr 27, 6:40 PM CDT | Severe Thunderstorm Warning | LSX | 48 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | 32 min |
| Apr 27, 7:09 PM CDT | Severe Thunderstorm Warning | LSX | 51 min |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | 6 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | 5 days |
| Apr 30, 5:08 AM CDT | River Flood Warning | LSX | 23 hr |
| May 3, 8:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 3, 10:15 PM CDT | Severe Thunderstorm Warning | LSX | 30 min |
| May 3, 10:38 PM CDT | Severe Thunderstorm Warning | LSX | 45 min |
| May 9, 12:15 AM CDT | Dense Fog Advisory | LSX | 7 hr |
| May 18, 1:12 AM CDT | Flood Watch | LSX | 35 hr |
| May 18, 6:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| May 18, 5:12 PM CDT | Flash Flood Warning | LSX | 3 hr |
| Jun 1, 3:34 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 1, 4:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 1, 4:53 AM CDT | Severe Thunderstorm Warning | LSX | 52 min |
| Jun 1, 7:45 AM CDT | Areal Flood Advisory | LSX | 3 hr |
| Jun 7, 1:26 PM CDT | Flood Watch | LSX | 40 hr |
| Jun 8, 8:10 AM CDT | Areal Flood Advisory | LSX | 2 hr |
| Jun 8, 9:16 AM CDT | Areal Flood Advisory | LSX | 105 min |
| Jun 8, 10:32 AM CDT | Flash Flood Warning | LSX | 3 hr |
| Jun 8, 10:46 AM CDT | Flash Flood Warning | LSX | 3 hr |
| Jun 8, 11:27 AM CDT | River Flood Warning | LSX | 62 hr |
| Jun 8, 11:44 AM CDT | Heat Advisory | LSX | 32 hr |
| Jun 11, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 15, 10:06 PM CDT | River Flood Warning | LSX | 62 hr |
| Jun 16, 10:13 AM CDT | River Flood Warning | LSX | 63 hr |
| Jun 16, 12:39 PM CDT | Wind Advisory | LSX | 31 hr |
| Jun 17, 1:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 17, 2:14 PM CDT | Tornado Watch | SPC | 11 hr |
| Jun 17, 4:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 20, 1:28 AM CDT | Flood Watch | LSX | 45 hr |
| Jun 21, 10:06 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 1:10 PM CDT | Areal Flood Advisory | LSX | 4 hr |
| Jun 24, 11:53 AM CDT | Flood Watch | LSX | 62 hr |
| Jun 25, 1:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 3:39 PM CDT | Severe Thunderstorm Warning | LSX | 34 min |
| Jun 25, 3:43 PM CDT | Areal Flood Advisory | LSX | 37 min |
| Jun 25, 4:18 PM CDT | Flash Flood Warning | LSX | 3 hr |
| Jun 27, 1:59 AM CDT | Extreme Heat Watch | LSX | 11 hr |
| Jun 27, 1:15 PM CDT | Extreme Heat Warning | LSX | 7 days |
| Jun 27, 1:29 PM CDT | Areal Flood Advisory | LSX | 3 hr |
| Jul 4, 12:17 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 2:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 4, 4:15 PM CDT | Severe Thunderstorm Warning | LSX | 32 min |
| Jul 10, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 10, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 10, 7:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 10, 7:58 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Jul 10, 8:40 PM CDT | Severe Thunderstorm Warning | LSX | 50 min |
| Jul 17, 11:01 AM CDT | Heat Advisory | LSX | 4 days |
| Jul 24, 1:12 AM CDT | Extreme Heat Watch | LSX | 11 hr |
| Jul 24, 12:15 PM CDT | Heat Advisory | LSX | 47 hr |
| Jul 26, 12:40 AM CDT | Extreme Heat Warning | LSX | 66 hr |
| Jul 27, 12:14 PM CDT | Heat Advisory | LSX | 31 hr |
| Jul 31, 2:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 1:57 AM CDT | Flood Watch | LSX | 35 hr |
| Aug 6, 4:35 AM CDT | Flash Flood Warning | LSX | 119 min |
| Aug 8, 2:05 AM CDT | Extreme Heat Watch | LSX | 23 hr |
| Aug 9, 1:05 AM CDT | Extreme Heat Warning | LSX | 8 days |
| Aug 12, 4:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 12, 5:00 PM CDT | Severe Thunderstorm Warning | LSX | 30 min |
| Aug 16, 3:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 8:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 16, 9:06 PM CDT | Severe Thunderstorm Warning | LSX | 39 min |
| Aug 30, 12:27 PM CDT | Heat Advisory | LSX | 3 days |
| Aug 30, 12:27 PM CDT | Extreme Heat Watch | LSX | 11 hr |
| Sep 3, 12:12 AM CDT | Extreme Heat Warning | LSX | 68 hr |
| Sep 10, 12:25 AM CDT | Areal Flood Advisory | LSX | 3 hr |
| Sep 14, 11:30 AM CDT | Heat Advisory | LSX | 5 days |
| Sep 15, 2:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Sep 17, 3:38 PM CDT | Severe Thunderstorm Warning | LSX | 52 min |
| Sep 17, 3:50 PM CDT | Areal Flood Advisory | LSX | 3 hr |
| Sep 20, 6:38 PM CDT | Mesoscale Discussion | SPC | 2 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 | 27 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 26 |
| Flooding | |
| Flash Flood Warning | 5 |
| River Flood Warning | 7 |
| Flood Watch | 6 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Extreme Heat Warning | 4 |
| Extreme Heat Watch | 4 |
| Heat Advisory | 6 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 1 |
| Cold Weather Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.