Weather alerts in Wisconsin, 2020
2,590 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 2,590
- Warnings
- 693
- Watches
- 158
- Advisories
- 613
- Busiest month
- July605 alerts
- Busiest day
- July 9, 202095 alerts
Over time
By month
The alerts
2,590 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.
- Douglas County139
- Milwaukee County131
- Columbia County127
- Racine County126
- Kenosha County123
- Marathon County121
- Wood County115
- Bayfield County114
- Sawyer County114
- Sheboygan County114
- Pierce County112
- Manitowoc County112
- Ozaukee County112
- Grant County112
- Winnebago County110
- Sauk County110
- Waukesha County110
- Iron County108
- Marinette County108
- Saint Croix County107
- Jackson County107
- Ashland County107
- Rock County107
- Door County106
- Dane County105
- Green County105
- Brown County104
- Kewaunee County104
- Eau Claire County102
- Oconto County102
- Trempealeau County101
- Dunn County100
- Lafayette County100
- Dodge County99
- Vilas County98
- Waushara County97
- Chippewa County96
- Fond du Lac County96
- Washington County96
- Shawano County95
32 more counties
- Burnett County95
- La Crosse County95
- Monroe County95
- Portage County95
- Iowa County95
- Walworth County95
- Crawford County94
- Washburn County94
- Jefferson County94
- Outagamie County93
- Clark County93
- Juneau County93
- Vernon County91
- Adams County90
- Lincoln County90
- Green Lake County90
- Waupaca County89
- Buffalo County89
- Calumet County89
- Price County88
- Oneida County87
- Marquette County87
- Richland County84
- Pepin County83
- Forest County81
- Polk County80
- Taylor County80
- Langlade County77
- Rusk County74
- Barron County72
- Menominee County72
- Florence County68
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.