Alert archive / Wisconsin / Severe Thunderstorm Watches / 2021
Severe Thunderstorm Watches in Wisconsin, September 2021
2 severe thunderstorm watches in September 2021. 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 September 2021. Tap one for its archive.
- Severe Thunderstorm Watches
- 2
- Busiest day
- September 7, 20211 severe thunderstorm watches
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 |
|---|---|---|---|---|
| Sep 7, 11:21 AM CDT | Severe Thunderstorm Watch | SPC | Dane, Dodge, Fond du Lac, Green, Jefferson, Kenosha and 8 more | 6 hr |
| Sep 20, 2:07 PM CDT | Severe Thunderstorm Watch | SPC | Barron, Buffalo, Chippewa, Clark, Crawford, Dunn and 14 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dane County1
- Dodge County1
- Fond du Lac County1
- Green County1
- Jefferson County1
- Kenosha County1
- Milwaukee County1
- Ozaukee County1
- Racine County1
- Rock County1
- Sheboygan County1
- Walworth County1
- Washington County1
- Waukesha County1
- Barron County1
- Buffalo County1
- Chippewa County1
- Clark County1
- Crawford County1
- Dunn County1
- Eau Claire County1
- Grant County1
- Jackson County1
- La Crosse County1
- Monroe County1
- Pepin County1
- Pierce County1
- Polk County1
- Richland County1
- Rusk County1
- Saint Croix County1
- Taylor County1
- Trempealeau County1
- Vernon County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.