Hamlin County weather alerts
There are no active weather alerts for Hamlin County, SD right now.
Since 2016 the National Weather Service has issued about 916 alerts that included Hamlin County, roughly 92 a year. The most common is the severe thunderstorm warning (120 from 2016 to 2025). The last tornado warning was issued on July 2, 2026. 24 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 Hamlin County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Clark County, Codington County, Kingsbury County, Brookings County.
Hamlin County alert history
Alert events that included Hamlin County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 120 | 11 | August 25, 2026 |
| Winter Weather Advisory | 118 | 9 | April 3, 2026 |
| Dense Fog Advisory | 112 | 10 | October 12, 2026 |
| Wind Advisory | 102 | 3 | March 28, 2026 |
| Severe Thunderstorm Watch | 69 | 7 | August 9, 2026 |
| Cold Weather Advisory | 65 | 3 | January 25, 2026 |
| Flood Warning | 54 | 4 | July 9, 2026 |
| Winter Storm Watch | 39 | 1 | March 14, 2026 |
| Heat Advisory | 32 | 3 | July 25, 2026 |
| Blizzard Warning | 24 | 1 | March 15, 2026 |
| Winter Storm Warning | 24 | 1 | March 14, 2026 |
| Red Flag Warning | 23 | 9 | May 15, 2026 |
| Extreme Cold Warning | 20 | 1 | January 23, 2026 |
| Tornado Warning | 17 | 2 | July 2, 2026 |
| Fire Weather Watch | 16 | 3 | May 15, 2026 |
| High Wind Warning | 14 | 2 | March 12, 2026 |
| Frost Advisory | 12 | 2 | May 11, 2026 |
| Freeze Warning | 12 | 2 | October 17, 2026 |
| Tornado Watch | 8 | 1 | June 3, 2026 |
| Flash Flood Warning | 6 | 0 | September 17, 2025 |
| High Wind Watch | 6 | 0 | December 18, 2025 |
| Flood Watch | 6 | 0 | August 22, 2025 |
| 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 | 1 | 0 | April 9, 2020 |
Tornado history in Hamlin County
24 tornadoes have been recorded in Hamlin County since 1950, injuring 13 people. That ranks 39 of 66 counties in South Dakota. The most recent was on August 16, 2025 (rated EF0).
Strongest tornadoes in Hamlin County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 19, 1971 | F2 | Hamlin County | 36.8 mi | 10 yd | 0 | 0 |
| July 18, 1986 | F2 | Hamlin County | 14 mi | 100 yd | 0 | 0 |
| May 12, 2022 | EF2 | Hamlin County | 2 mi | 80 yd | 0 | 1 |
| July 22, 1981 | F2 | Hamlin County | 0.1 mi | 10 yd | 0 | 0 |
| May 9, 1953 | F1 | Clark County | 6.8 mi | 97 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 16, 2025 | EF0 | Hamlin County | 2.5 mi | 75 yd | 0 | 0 |
| May 30, 2022 | EF0 | Hamlin County | 0.7 mi | 10 yd | 0 | 0 |
| May 12, 2022 | EF2 | Hamlin County | 2 mi | 80 yd | 0 | 1 |
| May 12, 2022 | EF1 | Hamlin County | 0.5 mi | 20 yd | 0 | 1 |
| September 9, 2019 | EF0 | Hamlin County | 3.2 mi | 40 yd | 0 | 0 |
About Hamlin County
- Population: 6,596 (2024 estimate)
- State: South Dakota
- NOAA Weather Radio SAME code: 046057 (how to use it)