Alert archive / Illinois / Saint Clair County / Mesoscale Discussions
Mesoscale Discussions in Saint Clair County, Illinois, 2025
27 mesoscale discussions in 2025. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.
Saint Clair County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Mesoscale Discussions
- 27
- Busiest month
- March5 mesoscale discussions
- Busiest day
- March 15, 20253 mesoscale discussions
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 5, 2:40 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 12, 6:16 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 14, 7:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 14, 8:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Mar 14, 10:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Mar 30, 11:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 30, 2:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 18, 2:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 5:35 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 2:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 7:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 30, 2:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 11:41 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 16, 2:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 7:36 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 10:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 20, 1:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 4, 1:43 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 7, 3:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 7:59 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 1:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 6, 12:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 12:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 14, 3:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 29, 3:18 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 18, 10:44 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 28, 1:18 PM CST | Mesoscale Discussion | SPC | 117 min |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.