Alert archive / Wisconsin / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Wisconsin, 2020
19 severe thunderstorm watches in 2020. 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 watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Severe Thunderstorm Watches
- 19
- Busiest month
- July7 severe thunderstorm watches
- Busiest day
- June 2, 20202 severe thunderstorm watches
Over time
By month
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 |
|---|---|---|---|---|
| Apr 7, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Green, Jefferson, Kenosha, Lafayette, Milwaukee, Ozaukee and 6 more | 5 hr |
| Jun 2, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Buffalo, Chippewa, Crawford, Dunn, Eau Claire and 11 more | 5 hr |
| Jun 2, 5:48 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Calumet, Columbia, Dane, Dodge, Fond du Lac and 24 more | 5 hr |
| Jun 21, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Buffalo, Chippewa, Clark, Dunn and 16 more | 6 hr |
| Jun 26, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | Columbia, Crawford, Dane, Dodge, Grant, Green and 13 more | 8 hr |
| Jul 8, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Bayfield, Burnett, Douglas, Iron, Polk and 2 more | 8 hr |
| Jul 9, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | Crawford, Grant, Richland, Vernon | 8 hr |
| Jul 9, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more | 7 hr |
| Jul 14, 4:11 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Buffalo, Clark, Crawford, Grant, Jackson and 13 more | 7 hr |
| Jul 17, 10:25 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Clark and 17 more | 8 hr |
| Jul 18, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Douglas and 8 more | 8 hr |
| Jul 18, 9:44 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Clark, Door, Florence, Forest, Kewaunee and 14 more | 7 hr |
| Aug 7, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Burnett, Douglas, Polk, Saint Croix | 9 hr |
| Aug 10, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | Dane, Grant, Green, Iowa, Jefferson, Kenosha and 6 more | 7 hr |
| Aug 10, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Calumet, Columbia, Dodge, Door, Fond du Lac and 13 more | 6 hr |
| Aug 14, 5:38 PM CDT | Severe Thunderstorm Watch | SPC | Barron, Burnett, Douglas, Dunn, Pierce, Polk and 2 more | 5 hr |
| Aug 28, 1:54 AM CDT | Severe Thunderstorm Watch | SPC | Pierce, Saint Croix | 7 hr |
| Aug 28, 3:16 PM CDT | Severe Thunderstorm Watch | SPC | Columbia, Dane, Grant, Green, Iowa, Lafayette and 1 more | 4 hr |
| Sep 26, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Florence, Forest, Iron and 7 more | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Saint Croix County7
- Green County6
- Lafayette County6
- Grant County6
- Jefferson County5
- Kenosha County5
- Milwaukee County5
- Ozaukee County5
- Racine County5
- Rock County5
- Walworth County5
- Washington County5
- Waukesha County5
- Dunn County5
- Pierce County5
- Columbia County5
- Dane County5
- Iowa County5
- Ashland County5
- Barron County5
- Iron County5
- Sawyer County5
- Burnett County5
- Douglas County5
- Polk County5
- Washburn County5
- Sheboygan County4
- Chippewa County4
- Crawford County4
- Richland County4
- Dodge County4
- Sauk County4
- Wood County4
- Clark County4
- Marathon County4
- Oneida County4
- Price County4
- Rusk County4
- Taylor County4
- Vilas County4
32 more counties
- Bayfield County4
- Buffalo County3
- Eau Claire County3
- Jackson County3
- Pepin County3
- Trempealeau County3
- Vernon County3
- Brown County3
- Fond du Lac County3
- Green Lake County3
- Kewaunee County3
- Marquette County3
- Outagamie County3
- Portage County3
- Waupaca County3
- Lincoln County3
- Shawano County3
- Marinette County3
- Adams County2
- Juneau County2
- La Crosse County2
- Monroe County2
- Calumet County2
- Manitowoc County2
- Waushara County2
- Winnebago County2
- Door County2
- Florence County2
- Forest County2
- Menominee County2
- Oconto County2
- Langlade County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.