Alert archive / Illinois / Saint Clair County / 2026
Weather alerts in Saint Clair County, Illinois, March 2026
16 weather alerts in March 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 16
- Warnings
- 9
- Watches
- 2
- Advisories
- 2
- Busiest day
- March 15, 20267 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 |
|---|---|---|---|
| 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 7, 2:44 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 4:23 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 4:35 AM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| Mar 11, 5:05 AM CDT | Tornado Warning | LSX | 25 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, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | 44 min |
| Mar 15, 5:05 PM CDT | Tornado Warning | LSX | 34 min |
| Mar 15, 5:19 PM CDT | Tornado Warning | LSX | 47 min |
| Mar 15, 5:28 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Mar 15, 5:34 PM CDT | Tornado Warning | LSX | 34 min |
| Mar 27, 11:40 AM CDT | Freeze Warning | LSX | 21 hr |
| Mar 29, 1:27 PM CDT | Red Flag Warning | LSX | 5 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 | 3 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 3 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog 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. Rebuilt daily.