Alert archive / Wisconsin / Flash Flood Warnings
Flash Flood Warnings in Wisconsin, 2021
20 flash flood warnings in 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Flash Flood Warnings
- 20
- Busiest month
- August14 flash flood warnings
- Busiest day
- August 28, 20214 flash flood warnings
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 |
|---|---|---|---|---|
| Jun 10, 6:08 PM CDT | Flash Flood Warning | DLH | Iron, Price | 3 hr |
| Jun 26, 4:31 AM CDT | Flash Flood Warning | ARX | Crawford | 5 hr |
| Jun 29, 1:21 PM CDT | Flash Flood Warning | ARX | Crawford | 3 hr |
| Jul 14, 2:54 PM CDT | Flash Flood Warning | DLH | Washburn | 3 hr |
| Jul 14, 11:31 PM CDT | Flash Flood Warning | GRB | Calumet, Manitowoc, Winnebago | 3 hr |
| Jul 15, 2:00 AM CDT | Flash Flood Warning | GRB | Calumet, Manitowoc, Winnebago | 4 hr |
| Aug 7, 3:23 PM CDT | Flash Flood Warning | ARX | La Crosse, Monroe | 3 hr |
| Aug 7, 4:27 PM CDT | Flash Flood Warning | ARX | Vernon | 3 hr |
| Aug 7, 6:17 PM CDT | Flash Flood Warning | MPX | Chippewa, Dunn, Eau Claire | 4 hr |
| Aug 8, 2:19 AM CDT | Flash Flood Warning | MKX | Milwaukee, Ozaukee | 3 hr |
| Aug 10, 7:11 PM CDT | Flash Flood Warning | GRB | Brown | 3 hr |
| Aug 11, 2:16 PM CDT | Flash Flood Warning | GRB | Marathon | 5 hr |
| Aug 11, 3:07 PM CDT | Flash Flood Warning | GRB | Marathon | 4 hr |
| Aug 27, 10:58 PM CDT | Flash Flood Warning | GRB | Portage, Wood | 3 hr |
| Aug 27, 11:41 PM CDT | Flash Flood Warning | ARX | Vernon | 4 hr |
| Aug 27, 11:51 PM CDT | Flash Flood Warning | GRB | Waupaca | 3 hr |
| Aug 28, 12:34 AM CDT | Flash Flood Warning | GRB | Brown, Outagamie | 84 min |
| Aug 28, 11:08 PM CDT | Flash Flood Warning | GRB | Calumet, Manitowoc | 89 min |
| Aug 28, 11:22 PM CDT | Flash Flood Warning | GRB | Portage, Waupaca | 3 hr |
| Aug 28, 11:26 PM CDT | Flash Flood Warning | MKX | Fond du Lac | 85 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Calumet County3
- Manitowoc County3
- Crawford County2
- Winnebago County2
- Vernon County2
- Brown County2
- Marathon County2
- Portage County2
- Waupaca County2
- Iron County1
- Price County1
- Washburn County1
- La Crosse County1
- Monroe County1
- Chippewa County1
- Dunn County1
- Eau Claire County1
- Milwaukee County1
- Ozaukee County1
- Wood County1
- Outagamie County1
- Fond du Lac County1
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.