Clark County weather alerts
There are no active weather alerts for Clark County, SD right now.
Since 2016 the National Weather Service has issued about 869 alerts that included Clark County, roughly 87 a year. The most common is the winter weather advisory (123 from 2016 to 2025). The last tornado warning was issued on July 2, 2026. 37 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Clark County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Codington County, Kingsbury County, Spink County, Beadle County.
Clark County alert history
Alert events that included Clark County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 123 | 9 | April 3, 2026 |
| Severe Thunderstorm Warning | 116 | 20 | August 29, 2026 |
| Dense Fog Advisory | 98 | 10 | October 12, 2026 |
| Wind Advisory | 98 | 4 | April 8, 2026 |
| Severe Thunderstorm Watch | 81 | 7 | August 9, 2026 |
| Cold Weather Advisory | 64 | 3 | January 25, 2026 |
| Winter Storm Watch | 42 | 1 | March 14, 2026 |
| Heat Advisory | 34 | 3 | July 29, 2026 |
| Blizzard Warning | 23 | 2 | March 15, 2026 |
| Winter Storm Warning | 23 | 1 | March 14, 2026 |
| Red Flag Warning | 23 | 9 | May 15, 2026 |
| Extreme Cold Warning | 20 | 1 | January 23, 2026 |
| Tornado Warning | 19 | 3 | July 2, 2026 |
| Fire Weather Watch | 16 | 3 | May 15, 2026 |
| High Wind Warning | 14 | 1 | March 12, 2026 |
| Freeze Warning | 13 | 1 | May 20, 2026 |
| Frost Advisory | 12 | 3 | October 17, 2026 |
| Flood Warning | 10 | 1 | July 8, 2026 |
| Tornado Watch | 7 | 1 | June 3, 2026 |
| Flood Watch | 7 | 0 | August 22, 2025 |
| High Wind Watch | 6 | 0 | April 12, 2022 |
| Ice Storm Warning | 4 | 0 | December 25, 2023 |
| Freeze Watch | 4 | 0 | October 7, 2023 |
| Extreme Heat Watch | 3 | 0 | June 20, 2025 |
| Extreme Cold Watch | 3 | 1 | January 23, 2026 |
| Extreme Heat Warning | 2 | 1 | July 26, 2026 |
| Snow Squall Warning | 2 | 0 | April 9, 2020 |
| Flash Flood Warning | 2 | 0 | June 3, 2024 |
Tornado history in Clark County
37 tornadoes have been recorded in Clark County since 1950, killing 1 people and injuring 9. That ranks 19 of 66 counties in South Dakota. The most recent was on August 10, 2023 (rated EF0).
Strongest tornadoes in Clark County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 21, 1961 | F3 | Brown County | 156.3 mi | 10 yd | 1 | 7 |
| May 12, 1984 | F3 | Clark County | 27 mi | 1,320 yd | 0 | 0 |
| May 20, 1965 | F2 | Beadle County | 10.4 mi | 150 yd | 0 | 0 |
| May 29, 1953 | F2 | Clark County | 1.9 mi | 10 yd | 0 | 0 |
| July 26, 1963 | F2 | Clark County | 1 mi | 1,000 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 10, 2023 | EF0 | Clark County | 0.9 mi | 90 yd | 0 | 0 |
| June 7, 2023 | EF0 | Clark County | 0 mi | 10 yd | 0 | 0 |
| May 12, 2022 | EF1 | Clark County | 0.5 mi | 20 yd | 0 | 0 |
| May 12, 2022 | EF0 | Clark County | 0.3 mi | 10 yd | 0 | 0 |
| May 12, 2022 | EF0 | Clark County | 0 mi | 10 yd | 0 | 0 |
About Clark County
- Population: 3,974 (2024 estimate)
- State: South Dakota
- NOAA Weather Radio SAME code: 046025 (how to use it)