Union County SD Tornado Warnings — Live Alerts & History
South Dakota · updates automatically
Active Tornado Warnings
No active tornado warnings for Union 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 Union County (Since 1950)
Tornadoes on Record
19
1950–present · NOAA/SPC
Violent (EF3+)
1
5.3% of total
Fatalities
0
1 injuries
Strongest Rating
F3
Fujita / Enhanced Fujita
Most Recent
May 12, 2014
Latest tornado on record
Recent Tornado Warning History
| Date | Issued | Expired |
|---|---|---|
| June 1, 2026 | 2:11 AM UTC | 3:00 AM UTC |
| July 29, 2025 | 1:55 AM UTC | 2:30 AM UTC |
Union County Facts
- FIPS Code
- 46127
- NWS County Code (UGC)
- SDC127
More for Union 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.