St. Clair County MI Tornado Warnings — Live Alerts & History
Michigan · updates automatically
Active Tornado Warnings
No active tornado warnings for St. Clair County right now
This page updates automatically — new NWS tornado warnings for the county appear here within about a minute of issuance.
Tornado History for St. Clair County (Since 1950)
Tornadoes on Record
21
1950–present · NOAA/SPC
Violent (EF3+)
1
4.8% of total
Fatalities
3
73 injuries
Strongest Rating
F4
Fujita / Enhanced Fujita
Most Recent
October 14, 2021
Latest tornado on record
Recent Tornado Warning History
| Date | Issued | Expired |
|---|---|---|
| September 2, 2026 | 11:00 PM UTC | 11:45 PM UTC |
St. Clair County Facts
- FIPS Code
- 26147
- NWS County Code (UGC)
- MIC147
More for St. Clair County
Recent warning events
Active warnings come from the National Weather Service and refresh on
this page about once a minute. Tornado climatology is computed from the
NOAA/SPC storm events archive (1950–present). VORTEX is not a substitute
for official NWS warnings or a NOAA Weather Radio.