Alert archive / Illinois / Saint Clair County / 2026
Weather alerts in Saint Clair County, Illinois, April 2026
21 weather alerts in April 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 21
- Warnings
- 8
- Watches
- 5
- Advisories
- 1
- Busiest day
- April 27, 20269 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| 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 15, 10:15 PM CDT | Severe Thunderstorm Warning | LSX | 21 min |
| Apr 17, 3:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 17, 8:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| 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, 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, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | 27 min |
| Apr 27, 3:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | 63 min |
| Apr 27, 7:52 PM CDT | Tornado Warning | LSX | 38 min |
| Apr 27, 7:56 PM CDT | Severe Thunderstorm Warning | LSX | 64 min |
| Apr 27, 8:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | 5 days |
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 | 4 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 7 |
| Flooding | |
| River Flood Warning | 1 |
| Flood Watch | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
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.