National Weather ServiceWisconsinTornado WarningArchive to October 1, 2026
Tornado Warnings in Wisconsin
The National Weather Service issued 81 tornado warnings for Wisconsin in 2025 and 44 a year on average in 2008-2025; in 2021-2025 it had the 22nd most of any state. 2026 through September: 150, 255% above the average of 42 for those months in 2008-2025. Dane was covered most often (72 times since 2008).
How many tornado warnings does Wisconsin get?
Every tornado warning that covered part of Wisconsin. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 150 |
| 2025 | 81 |
| 2024 | 82 |
| 2023 | 23 |
| 2022 | 59 |
| 2021 | 57 |
| 2020 | 39 |
| 2019 | 27 |
| 2018 | 33 |
| 2017 | 34 |
| 2016 | 14 |
| 2015 | 21 |
| 2014 | 15 |
| 2013 | 34 |
| 2012 | 10 |
| 2011 | 72 |
| 2010 | 82 |
| 2009 | 41 |
| 2008 | 72 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Wisconsin get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Wisconsin?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Dane | 72 | 34 | August 21, 2026 |
| Rock | 61 | 37 | July 3, 2026 |
| Columbia | 60 | 25 | August 18, 2026 |
| Dodge | 52 | 23 | August 18, 2026 |
| Walworth | 51 | 27 | July 27, 2026 |
| Jefferson | 48 | 25 | July 27, 2026 |
| Iowa | 43 | 18 | July 2, 2026 |
| Grant | 42 | 10 | July 2, 2026 |
| Waukesha | 40 | 17 | August 18, 2026 |
| Green | 39 | 22 | June 18, 2026 |
| Racine | 39 | 14 | July 27, 2026 |
| Sauk | 39 | 18 | August 18, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest tornado warnings for Wisconsin in AreaZine's record
NWS Milwaukee/SullivanWarningAugust 18, 2026
Tornado Warning: Waukesha, WI
Expired 7:15 p.m. CDT, August 18, 2026
NWS Milwaukee/SullivanWarningAugust 18, 2026
Tornado Warning: Columbia, Dane and Dodge, WI
Expired 6:30 p.m. CDT, August 18, 2026
NWS Milwaukee/SullivanWarningAugust 18, 2026
Tornado Warning: Green Lake and Marquette, WI
Expired 5:00 p.m. CDT, August 18, 2026
NWS Milwaukee/SullivanWarningJuly 27, 2026
Tornado Warning: Dodge and Fond du Lac, WI
Expired 1:45 p.m. CDT, July 27, 2026
NWS Milwaukee/SullivanWarningJuly 27, 2026
Tornado Warning: Fond du Lac, WI
Expired 1:30 p.m. CDT, July 27, 2026
NWS Green BayWarningJuly 27, 2026
Tornado Warning: Calumet and Winnebago, WI
Expired 1:00 p.m. CDT, July 27, 2026
NWS Milwaukee/SullivanWarningJuly 27, 2026
Tornado Warning: Dodge, Jefferson and Waukesha, WI
Expired 11:30 a.m. CDT, July 27, 2026
NWS Green BayWarningJuly 20, 2026
Tornado Warning: Marathon and Portage, WI
Expired 8:45 p.m. CDT, July 20, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a tornado warning?
The NWS issues a tornado warning when a tornado has been seen or weather radar indicates one in the warned area. Warnings are drawn as polygons around the storm's path and usually last 30 to 60 minutes. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Wisconsin.