Brown County weather alerts
There are no active weather alerts for Brown County, SD right now.
Since 2016 the National Weather Service has issued about 1,071 alerts that included Brown County, roughly 107 a year. The most common is the severe thunderstorm warning (225 from 2016 to 2025). The last tornado warning was issued on June 29, 2026. 86 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 Brown County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Dickey County, Marshall County, Edmunds County, Spink County.
Brown County alert history
Alert events that included Brown County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 225 | 41 | August 30, 2026 |
| Wind Advisory | 119 | 6 | June 29, 2026 |
| Winter Weather Advisory | 118 | 9 | April 1, 2026 |
| Dense Fog Advisory | 97 | 14 | November 7, 2026 |
| Severe Thunderstorm Watch | 86 | 8 | August 24, 2026 |
| Cold Weather Advisory | 79 | 4 | January 25, 2026 |
| Flood Warning | 45 | 3 | July 8, 2026 |
| Heat Advisory | 37 | 5 | July 29, 2026 |
| Winter Storm Watch | 34 | 2 | April 3, 2026 |
| Extreme Cold Warning | 28 | 1 | January 23, 2026 |
| Red Flag Warning | 27 | 6 | May 15, 2026 |
| Winter Storm Warning | 23 | 2 | April 3, 2026 |
| Frost Advisory | 21 | 3 | October 17, 2026 |
| Blizzard Warning | 19 | 2 | March 15, 2026 |
| High Wind Warning | 19 | 2 | June 29, 2026 |
| Fire Weather Watch | 19 | 4 | May 15, 2026 |
| Tornado Warning | 15 | 2 | June 29, 2026 |
| Freeze Warning | 13 | 2 | October 14, 2026 |
| High Wind Watch | 11 | 1 | March 12, 2026 |
| Tornado Watch | 8 | 2 | June 29, 2026 |
| Freeze Watch | 5 | 0 | October 7, 2023 |
| Flood Watch | 5 | 1 | July 8, 2026 |
| Extreme Heat Warning | 4 | 1 | July 26, 2026 |
| Extreme Heat Watch | 3 | 0 | June 20, 2025 |
| Flash Flood Warning | 3 | 2 | July 30, 2026 |
| Ice Storm Warning | 3 | 0 | December 25, 2023 |
| Extreme Cold Watch | 3 | 1 | January 23, 2026 |
| Snow Squall Warning | 2 | 0 | October 30, 2023 |
Tornado history in Brown County
86 tornadoes have been recorded in Brown County since 1950, killing 3 people and injuring 35. That ranks 1 of 66 counties in South Dakota. The most recent was on July 13, 2025 (rated EF0).
Strongest tornadoes in Brown County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 23, 2002 | F4 | Brown County | 9 mi | 900 yd | 0 | 0 |
| June 21, 1961 | F3 | Brown County | 156.3 mi | 10 yd | 1 | 7 |
| July 1, 1973 | F3 | Brown County | 0.3 mi | 30 yd | 1 | 3 |
| May 31, 1996 | F3 | Brown County | 32 mi | 400 yd | 0 | 1 |
| June 23, 2002 | F3 | Brown County | 10 mi | 900 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 13, 2025 | EF0 | Brown County | 0.1 mi | 10 yd | 0 | 0 |
| May 7, 2022 | EF0 | Brown County | 0 mi | 10 yd | 0 | 0 |
| May 7, 2022 | EF0 | Brown County | 0 mi | 10 yd | 0 | 0 |
| May 7, 2022 | EF0 | Brown County | 0 mi | 10 yd | 0 | 0 |
| June 7, 2020 | EF0 | Brown County | 5.4 mi | 50 yd | 0 | 0 |
About Brown County
- Population: 37,495 (2024 estimate)
- State: South Dakota
- NOAA Weather Radio SAME code: 046013 (how to use it)