Rock County weather alerts
There are no active weather alerts for Rock County, MN right now.
Since 2016 the National Weather Service has issued about 939 alerts that included Rock County, roughly 94 a year. The most common is the severe thunderstorm warning (141 from 2016 to 2025). The last tornado warning was issued on May 17, 2026. 15 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 Rock County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Minnehaha County, Murray County, Pipestone County, Nobles County.
Rock County alert history
Alert events that included Rock County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 141 | 19 | September 2, 2026 |
| Dense Fog Advisory | 126 | 9 | September 30, 2026 |
| Winter Weather Advisory | 107 | 4 | March 6, 2026 |
| Wind Advisory | 98 | 3 | June 17, 2026 |
| Cold Weather Advisory | 61 | 3 | March 16, 2026 |
| Severe Thunderstorm Watch | 58 | 11 | September 11, 2026 |
| Flood Warning | 50 | 0 | June 24, 2024 |
| Winter Storm Watch | 37 | 1 | March 15, 2026 |
| Heat Advisory | 36 | 4 | July 25, 2026 |
| Red Flag Warning | 34 | 8 | May 14, 2026 |
| Winter Storm Warning | 22 | 0 | December 6, 2025 |
| Fire Weather Watch | 22 | 3 | April 16, 2026 |
| Frost Advisory | 18 | 4 | May 20, 2026 |
| Freeze Warning | 16 | 3 | October 17, 2026 |
| Flood Watch | 14 | 1 | September 6, 2026 |
| Flash Flood Warning | 13 | 0 | July 24, 2025 |
| Tornado Warning | 13 | 1 | May 17, 2026 |
| Extreme Cold Warning | 12 | 1 | January 23, 2026 |
| Tornado Watch | 12 | 2 | June 10, 2026 |
| Blizzard Warning | 11 | 2 | March 15, 2026 |
| High Wind Warning | 10 | 1 | March 13, 2026 |
| Extreme Heat Warning | 9 | 1 | July 25, 2026 |
| Extreme Heat Watch | 7 | 0 | July 27, 2025 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Freeze Watch | 3 | 1 | October 17, 2026 |
| High Wind Watch | 3 | 1 | March 13, 2026 |
| Ice Storm Warning | 2 | 0 | December 13, 2022 |
Tornado history in Rock County
15 tornadoes have been recorded in Rock County since 1950, injuring 7 people. That ranks 71 of 87 counties in Minnesota. The most recent was on May 30, 2022 (rated unknown).
Strongest tornadoes in Rock County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 25, 1969 | F2 | Rock County | 29.3 mi | 120 yd | 0 | 5 |
| June 29, 1956 | F2 | Rock County | 0.1 mi | 10 yd | 0 | 0 |
| June 7, 1993 | F1 | Rock County | 12 mi | 200 yd | 0 | 0 |
| May 9, 2004 | F1 | Rock County | 6 mi | 100 yd | 0 | 0 |
| May 7, 1993 | F1 | Rock County | 5.5 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 30, 2022 | ? | Rock County | 0.7 mi | 20 yd | 0 | 0 |
| June 5, 2014 | EF0 | Rock County | 0.3 mi | 50 yd | 0 | 0 |
| June 22, 2007 | EF0 | Rock County | 0.2 mi | 50 yd | 0 | 0 |
| June 20, 2005 | F0 | Rock County | 0.7 mi | 50 yd | 0 | 0 |
| May 9, 2004 | F1 | Rock County | 6 mi | 100 yd | 0 | 0 |
About Rock County
- Population: 9,525 (2024 estimate)
- State: Minnesota
- NOAA Weather Radio SAME code: 027133 (how to use it)