Alert archive / Wisconsin / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Wisconsin, April 2020
20 severe thunderstorm warnings in April 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 warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in April 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 20
- Busiest day
- April 7, 202015 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Apr 7, 8:30 AM CDT | Severe Thunderstorm Warning | DLH | Sawyer, Washburn | 30 min |
| Apr 7, 9:13 AM CDT | Severe Thunderstorm Warning | MPX | Rusk | 47 min |
| Apr 7, 9:39 AM CDT | Severe Thunderstorm Warning | DLH | Price | 51 min |
| Apr 7, 9:43 AM CDT | Severe Thunderstorm Warning | ARX | Taylor | 47 min |
| Apr 7, 10:17 AM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 43 min |
| Apr 7, 2:34 PM CDT | Severe Thunderstorm Warning | GRB | Oconto | 26 min |
| Apr 7, 2:48 PM CDT | Severe Thunderstorm Warning | GRB | Door, Kewaunee | 42 min |
| Apr 7, 3:10 PM CDT | Severe Thunderstorm Warning | GRB | Door | 24 min |
| Apr 7, 3:27 PM CDT | Severe Thunderstorm Warning | GRB | Door | 16 min |
| Apr 7, 3:40 PM CDT | Severe Thunderstorm Warning | MKX | Ozaukee, Washington | 35 min |
| Apr 7, 4:06 PM CDT | Severe Thunderstorm Warning | MKX | Ozaukee | 24 min |
| Apr 7, 5:06 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 39 min |
| Apr 7, 5:26 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee | 18 min |
| Apr 7, 5:40 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 50 min |
| Apr 7, 6:16 PM CDT | Severe Thunderstorm Warning | MKX | Green | 24 min |
| Apr 20, 6:58 PM CDT | Severe Thunderstorm Warning | GRB | Menominee, Outagamie, Portage, Shawano, Waupaca, Waushara and 1 more | 47 min |
| Apr 20, 7:04 PM CDT | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 56 min |
| Apr 20, 7:37 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Winnebago | 56 min |
| Apr 20, 9:35 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Racine | 25 min |
| Apr 22, 3:43 PM CDT | Severe Thunderstorm Warning | ARX | Crawford | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Door County3
- Kewaunee County2
- Ozaukee County2
- Lafayette County2
- Milwaukee County2
- Green County2
- Outagamie County2
- Winnebago County2
- Sawyer County1
- Washburn County1
- Rusk County1
- Price County1
- Taylor County1
- Lincoln County1
- Oconto County1
- Washington County1
- Menominee County1
- Portage County1
- Shawano County1
- Waupaca County1
- Waushara County1
- Green Lake County1
- Marquette County1
- Brown County1
- Calumet County1
- Manitowoc County1
- Racine County1
- Crawford County1
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.