Severe Thunderstorm Warnings in Wisconsin
13,277 severe thunderstorm warnings since 1986. 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 since 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 13,277
- Busiest year
- 2026632 severe thunderstorm warnings
- Average year
- 324over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dane County735
- Rock County560
- Dodge County549
- Columbia County540
- Jefferson County528
- Douglas County495
- Waukesha County489
- Walworth County488
- Marathon County460
- Sauk County454
- Sawyer County439
- Green County416
- Bayfield County404
- Ashland County403
- Iowa County398
- Burnett County396
- Dunn County384
- Fond du Lac County381
- Shawano County380
- Trempealeau County379
- Pierce County373
- Racine County371
- Saint Croix County370
- Washburn County368
- Lafayette County364
- Portage County363
- Buffalo County361
- Washington County361
- Grant County358
- Polk County336
- Oconto County335
- Waupaca County334
- Jackson County333
- Wood County329
- Milwaukee County325
- Outagamie County324
- Clark County319
- Price County319
- Oneida County311
- Langlade County306
32 more counties
- Chippewa County303
- Kenosha County300
- Waushara County300
- Vernon County299
- Lincoln County296
- Marinette County295
- Monroe County288
- Green Lake County285
- Barron County281
- La Crosse County280
- Brown County279
- Marquette County276
- Winnebago County276
- Juneau County275
- Eau Claire County271
- Ozaukee County267
- Forest County263
- Adams County260
- Sheboygan County258
- Iron County251
- Pepin County250
- Vilas County233
- Rusk County230
- Richland County226
- Manitowoc County225
- Crawford County224
- Calumet County219
- Taylor County212
- Door County200
- Menominee County198
- Kewaunee County178
- Florence County138
The latest severe thunderstorm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 5:48 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 57 min |
| Sep 4, 5:07 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 53 min |
| Sep 4, 4:31 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 27 min |
| Sep 4, 4:27 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 48 min |
| Sep 4, 2:37 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac, Ozaukee, Sheboygan, Washington | 53 min |
| Sep 4, 2:14 AM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 16 min |
| Sep 4, 1:57 AM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc | 63 min |
| Sep 4, 1:40 AM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake, Marquette | 80 min |
| Sep 4, 1:34 AM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 41 min |
| Sep 4, 1:33 AM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Waupaca, Waushara, Winnebago | 57 min |
| Sep 4, 1:11 AM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Sheboygan | 49 min |
| Sep 4, 1:06 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waupaca, Waushara, Winnebago | 39 min |
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. Rebuilt daily.