Weather alerts in Wisconsin, 2021
2,500 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 2,500
- Warnings
- 677
- Watches
- 108
- Advisories
- 586
- Busiest month
- August530 alerts
- Busiest day
- August 11, 202199 alerts
Over time
By month
The alerts
2,500 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Portage County163
- Wood County160
- Marathon County149
- Douglas County145
- Outagamie County139
- Manitowoc County137
- La Crosse County137
- Calumet County136
- Waupaca County136
- Trempealeau County136
- Vernon County136
- Price County136
- Waushara County135
- Crawford County131
- Brown County130
- Winnebago County130
- Shawano County126
- Buffalo County126
- Jackson County126
- Monroe County126
- Sawyer County121
- Richland County115
- Langlade County113
- Lincoln County111
- Clark County111
- Sauk County111
- Kewaunee County109
- Dodge County108
- Oconto County107
- Juneau County107
- Columbia County105
- Sheboygan County105
- Bayfield County105
- Marinette County104
- Grant County104
- Iowa County104
- Milwaukee County103
- Adams County103
- Menominee County102
- Oneida County101
32 more counties
- Dane County101
- Ozaukee County98
- Fond du Lac County98
- Jefferson County96
- Waukesha County95
- Pepin County95
- Washington County94
- Eau Claire County92
- Racine County91
- Rock County91
- Walworth County91
- Taylor County91
- Pierce County91
- Forest County90
- Washburn County90
- Ashland County90
- Kenosha County89
- Dunn County89
- Saint Croix County89
- Chippewa County88
- Lafayette County88
- Door County87
- Vilas County86
- Burnett County85
- Green County84
- Iron County84
- Polk County83
- Marquette County81
- Green Lake County80
- Rusk County79
- Barron County78
- Florence County75
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.