Alert archive / Wisconsin / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Wisconsin, August 2020
88 severe thunderstorm warnings in August 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 August 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 88
- Busiest day
- August 25, 202032 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 |
|---|---|---|---|---|
| Aug 8, 11:15 AM CDT | Severe Thunderstorm Warning | ARX | Monroe | 30 min |
| Aug 8, 5:25 PM CDT | Severe Thunderstorm Warning | MPX | Pepin, Pierce | 35 min |
| Aug 8, 5:53 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin, Pierce | 37 min |
| Aug 8, 5:58 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 22 min |
| Aug 8, 7:24 PM CDT | Severe Thunderstorm Warning | ARX | Jackson, La Crosse, Trempealeau | 51 min |
| Aug 8, 8:01 PM CDT | Severe Thunderstorm Warning | ARX | Jackson, La Crosse, Monroe | 44 min |
| Aug 8, 8:22 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 53 min |
| Aug 8, 8:26 PM CDT | Severe Thunderstorm Warning | GRB | Wood | 64 min |
| Aug 8, 9:12 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara | 49 min |
| Aug 8, 11:04 PM CDT | Severe Thunderstorm Warning | GRB | Winnebago | 28 min |
| Aug 9, 5:35 AM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 55 min |
| Aug 9, 3:17 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 31 min |
| Aug 9, 4:23 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane | 38 min |
| Aug 9, 5:00 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson | 45 min |
| Aug 9, 5:20 PM CDT | Severe Thunderstorm Warning | MKX | Waukesha | 55 min |
| Aug 9, 5:34 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 26 min |
| Aug 9, 6:04 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee | 41 min |
| Aug 9, 7:26 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 49 min |
| Aug 10, 3:35 AM CDT | Severe Thunderstorm Warning | DLH | Burnett | 40 min |
| Aug 10, 5:21 AM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 73 min |
| Aug 10, 6:20 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, La Crosse, Trempealeau | 55 min |
| Aug 10, 6:51 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, Monroe | 54 min |
| Aug 10, 7:09 AM CDT | Severe Thunderstorm Warning | GRB | Wood | 51 min |
| Aug 10, 7:20 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 70 min |
| Aug 10, 7:57 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara, Wood | 48 min |
| Aug 10, 8:02 AM CDT | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 43 min |
| Aug 10, 8:38 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waupaca, Waushara | 35 min |
| Aug 10, 12:04 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Grant, Richland | 41 min |
| Aug 10, 12:34 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Lafayette | 56 min |
| Aug 10, 12:37 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 38 min |
| Aug 10, 1:26 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Iowa, Lafayette | 64 min |
| Aug 10, 2:29 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock, Walworth | 61 min |
| Aug 10, 3:13 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine, Rock, Walworth | 47 min |
| Aug 10, 3:35 PM CDT | Severe Thunderstorm Warning | GRB | Door | 40 min |
| Aug 10, 3:39 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 51 min |
| Aug 10, 4:14 PM CDT | Severe Thunderstorm Warning | GRB | Door | 46 min |
| Aug 10, 4:21 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 39 min |
| Aug 10, 4:25 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 50 min |
| Aug 14, 7:10 PM CDT | Severe Thunderstorm Warning | DLH | Burnett, Douglas, Washburn | 50 min |
| Aug 14, 7:41 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 34 min |
| Aug 14, 7:55 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Burnett, Douglas, Sawyer, Washburn | 50 min |
| Aug 14, 8:13 PM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 47 min |
| Aug 14, 8:50 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Dunn, Polk, Saint Croix | 40 min |
| Aug 14, 9:01 PM CDT | Severe Thunderstorm Warning | MPX | Pierce, Saint Croix | 44 min |
| Aug 14, 9:29 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn | 31 min |
| Aug 16, 2:37 AM CDT | Severe Thunderstorm Warning | ARX | Trempealeau | 23 min |
| Aug 21, 5:01 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 29 min |
| Aug 21, 5:18 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 42 min |
| Aug 21, 6:03 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 27 min |
| Aug 21, 6:14 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 27 min |
| Aug 21, 7:39 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest, Oneida, Vilas | 51 min |
| Aug 24, 9:44 PM CDT | Severe Thunderstorm Warning | GRB | Wood | 31 min |
| Aug 24, 9:46 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 44 min |
| Aug 24, 9:54 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 51 min |
| Aug 24, 10:28 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 47 min |
| Aug 24, 10:54 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge | 36 min |
| Aug 24, 11:04 PM CDT | Severe Thunderstorm Warning | GRB | Wood | 30 min |
| Aug 24, 11:11 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 49 min |
| Aug 24, 11:13 PM CDT | Severe Thunderstorm Warning | ARX | Adams | 47 min |
| Aug 24, 11:19 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson, Trempealeau | 41 min |
| Aug 24, 11:19 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 56 min |
| Aug 24, 11:23 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Jefferson | 39 min |
| Aug 24, 11:47 PM CDT | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 43 min |
| Aug 24, 11:59 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 61 min |
| Aug 24, 11:59 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 46 min |
| Aug 25, 12:27 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette | 48 min |
| Aug 25, 12:29 AM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Rock, Walworth | 46 min |
| Aug 25, 12:32 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn | 58 min |
| Aug 25, 12:47 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara, Wood | 44 min |
| Aug 25, 12:59 AM CDT | Severe Thunderstorm Warning | ARX | Clark | 46 min |
| Aug 25, 1:05 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire | 40 min |
| Aug 25, 1:07 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge | 38 min |
| Aug 25, 1:16 AM CDT | Severe Thunderstorm Warning | MKX | Rock, Walworth | 44 min |
| Aug 25, 1:45 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Jefferson, Waukesha | 46 min |
| Aug 25, 2:08 AM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 37 min |
| Aug 25, 2:14 AM CDT | Severe Thunderstorm Warning | GRB | Wood | 61 min |
| Aug 25, 2:47 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 28 min |
| Aug 25, 2:50 AM CDT | Severe Thunderstorm Warning | GRB | Marathon | 37 min |
| Aug 25, 2:54 AM CDT | Severe Thunderstorm Warning | MKX | Walworth | 40 min |
| Aug 25, 7:08 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau, Monroe | 67 min |
| Aug 25, 8:44 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge | 31 min |
| Aug 25, 10:58 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara, Wood | 32 min |
| Aug 25, 1:52 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 27 min |
| Aug 27, 3:51 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Green Lake | 39 min |
| Aug 27, 4:41 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge | 34 min |
| Aug 27, 5:24 PM CDT | Severe Thunderstorm Warning | MKX | Columbia | 34 min |
| Aug 27, 7:30 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Sauk | 45 min |
| Aug 27, 10:08 PM CDT | Severe Thunderstorm Warning | MKX | Sauk | 37 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Columbia County10
- Wood County8
- Jackson County7
- Adams County7
- Waushara County7
- Juneau County6
- Walworth County6
- Dodge County6
- Portage County5
- Green Lake County5
- Monroe County4
- Dunn County4
- Eau Claire County4
- Trempealeau County4
- Jefferson County4
- Rock County4
- Marinette County4
- Clark County4
- Pierce County3
- La Crosse County3
- Lafayette County3
- Dane County3
- Burnett County3
- Marquette County3
- Kenosha County3
- Racine County3
- Douglas County3
- Saint Croix County3
- Chippewa County3
- Pepin County2
- Buffalo County2
- Sheboygan County2
- Waukesha County2
- Vilas County2
- Grant County2
- Iowa County2
- Green County2
- Door County2
- Washburn County2
- Polk County2
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.