Columbia County weather alerts
There are no active weather alerts for Columbia County, WI right now.
Since 2016 the National Weather Service has issued about 877 alerts that included Columbia County, roughly 88 a year. The most common is the severe thunderstorm warning (193 from 2016 to 2025). The last tornado warning was issued on August 18, 2026. 40 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 Columbia County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Green Lake County, Marquette County, Dodge County, Dane County.
Columbia County alert history
Alert events that included Columbia County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 193 | 37 | August 18, 2026 |
| Winter Weather Advisory | 107 | 9 | April 2, 2026 |
| Dense Fog Advisory | 103 | 5 | October 20, 2026 |
| Severe Thunderstorm Watch | 56 | 8 | August 21, 2026 |
| Flood Advisory | 48 | 2 | June 25, 2026 |
| Flood Warning | 47 | 6 | April 16, 2026 |
| Cold Weather Advisory | 45 | 3 | January 26, 2026 |
| Wind Advisory | 41 | 3 | May 12, 2026 |
| Frost Advisory | 37 | 5 | May 11, 2026 |
| Tornado Warning | 32 | 6 | August 18, 2026 |
| Flood Watch | 25 | 7 | September 19, 2026 |
| Winter Storm Watch | 21 | 1 | March 15, 2026 |
| Flash Flood Warning | 20 | 0 | July 14, 2024 |
| Winter Storm Warning | 20 | 1 | March 15, 2026 |
| Freeze Warning | 18 | 3 | October 17, 2026 |
| Heat Advisory | 15 | 3 | July 27, 2026 |
| Tornado Watch | 15 | 4 | April 17, 2026 |
| Extreme Heat Warning | 6 | 2 | July 27, 2026 |
| Extreme Heat Watch | 4 | 1 | June 29, 2026 |
| High Wind Warning | 4 | 2 | June 11, 2026 |
| Freeze Watch | 4 | 1 | October 17, 2026 |
| Fire Weather Watch | 4 | 0 | September 3, 2023 |
| Red Flag Warning | 4 | 0 | September 3, 2023 |
| Snow Squall Warning | 3 | 0 | February 19, 2022 |
| High Wind Watch | 2 | 0 | December 16, 2021 |
| Extreme Cold Warning | 2 | 1 | January 23, 2026 |
| Ice Storm Warning | 1 | 0 | February 19, 2018 |
| Blizzard Warning | 0 | 1 | March 16, 2026 |
| Extreme Cold Watch | 0 | 2 | January 23, 2026 |
Tornado history in Columbia County
40 tornadoes have been recorded in Columbia County since 1950, killing 10 people and injuring 256. That ranks 9 of 72 counties in Wisconsin. The most recent was on May 15, 2025 (rated unknown).
Strongest tornadoes in Columbia County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 7, 1984 | F5 | Iowa County | 36 mi | 450 yd | 9 | 200 |
| September 26, 1951 | F4 | Columbia County | 9 mi | 100 yd | 1 | 9 |
| June 8, 1984 | F3 | Columbia County | 29 mi | 200 yd | 0 | 1 |
| August 16, 1963 | F3 | Columbia County | 9.6 mi | 10 yd | 0 | 13 |
| August 16, 1963 | F3 | Columbia County | 9.6 mi | 10 yd | 0 | 13 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 2025 | ? | Columbia County | 1.2 mi | 20 yd | 0 | 0 |
| July 28, 2021 | EF0 | Columbia County | 0.4 mi | 50 yd | 0 | 0 |
| July 28, 2021 | EF1 | Columbia County | 2.3 mi | 100 yd | 0 | 0 |
| June 16, 2018 | EF0 | Columbia County | 0.1 mi | 50 yd | 0 | 0 |
| June 22, 2013 | EF1 | Columbia County | 3.2 mi | 125 yd | 0 | 0 |
About Columbia County
- Population: 58,113 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055021 (how to use it)