Alert archive / South Dakota / Tornado Watches
Tornado Watches in South Dakota, 2021
4 tornado watches in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Tornado Watches
- 4
- Busiest month
- August2 tornado watches
- Busiest day
- May 23, 20211 tornado watches
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 | Counties | Lasted |
|---|---|---|---|---|
| May 23, 2:50 PM CDT | Tornado Watch | SPC | Bennett, Butte, Corson, Custer, Dewey, Fall River and 9 more | 7 hr |
| Aug 22, 6:31 PM CDT | Tornado Watch | SPC | Aurora, Davison, Douglas, Hanson, Hutchinson, Jerauld and 4 more | 3 hr |
| Aug 28, 3:44 PM CDT | Tornado Watch | SPC | Brookings, Lake, Moody | 5 hr |
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | Clay, Lincoln, Union | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bennett County1
- Butte County1
- Corson County1
- Custer County1
- Dewey County1
- Fall River County1
- Haakon County1
- Harding County1
- Jackson County1
- Lawrence County1
- Meade County1
- Oglala Lakota County1
- Pennington County1
- Perkins County1
- Ziebach County1
- Aurora County1
- Davison County1
- Douglas County1
- Hanson County1
- Hutchinson County1
- Jerauld County1
- McCook County1
- Miner County1
- Sanborn County1
- Turner County1
- Brookings County1
- Lake County1
- Moody County1
- Clay County1
- Lincoln County1
- Union County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.