Alert archive / Wisconsin / Severe Thunderstorm Warnings / 2026
Severe Thunderstorm Warnings in Wisconsin, March 2026
20 severe thunderstorm warnings in March 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in March 2026. Tap one for its archive.
- Severe Thunderstorm Warnings
- 20
- Busiest day
- March 31, 202614 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 7:34 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 41 min |
| Mar 10, 7:53 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 52 min |
| Mar 10, 8:07 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 41 min |
| Mar 10, 8:21 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 28 min |
| Mar 10, 8:26 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 23 min |
| Mar 10, 8:58 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 32 min |
| Mar 30, 10:36 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Shawano | 39 min |
| Mar 30, 11:05 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc | 25 min |
| Mar 30, 11:15 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Shawano, Waupaca | 45 min |
| Mar 30, 11:26 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Manitowoc | 49 min |
| Mar 30, 11:28 PM CDT | Severe Thunderstorm Warning | GRB | Door | 34 min |
| Mar 30, 11:41 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Outagamie | 49 min |
| Mar 31, 12:12 AM CDT | Severe Thunderstorm Warning | GRB | Kewaunee | 33 min |
| Mar 31, 6:56 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, Monroe | 34 min |
| Mar 31, 7:14 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 26 min |
| Mar 31, 8:47 AM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 43 min |
| Mar 31, 10:45 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine, Walworth | 45 min |
| Mar 31, 11:03 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha | 15 min |
| Mar 31, 11:55 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Rock, Walworth | 50 min |
| Mar 31, 12:02 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Green Lake | 21 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rock County4
- Kenosha County4
- Walworth County3
- Racine County2
- Marathon County2
- Shawano County2
- Calumet County2
- Manitowoc County2
- Brown County2
- Kewaunee County2
- Fond du Lac County2
- Green Lake County2
- Green County1
- Grant County1
- Waupaca County1
- Door County1
- Outagamie County1
- Jackson County1
- Monroe County1
- Adams County1
- Juneau County1
- Columbia County1
- Dodge County1
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.