Alert archive / Wisconsin / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Wisconsin, July 2020
103 severe thunderstorm warnings in July 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 July 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 103
- Busiest day
- July 19, 202031 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 |
|---|---|---|---|---|
| Jul 5, 1:57 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield | 33 min |
| Jul 5, 4:35 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield | 40 min |
| Jul 5, 5:06 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 39 min |
| Jul 5, 5:37 PM CDT | Severe Thunderstorm Warning | DLH | Burnett, Douglas | 24 min |
| Jul 5, 5:40 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Sawyer | 25 min |
| Jul 5, 7:28 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 19 min |
| Jul 6, 3:08 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Manitowoc | 20 min |
| Jul 6, 4:54 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 66 min |
| Jul 6, 5:24 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Oneida | 28 min |
| Jul 6, 5:30 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Marathon, Shawano | 30 min |
| Jul 6, 5:50 PM CDT | Severe Thunderstorm Warning | GRB | Forest | 40 min |
| Jul 6, 5:56 PM CDT | Severe Thunderstorm Warning | GRB | Oneida | 34 min |
| Jul 6, 7:07 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Monroe | 38 min |
| Jul 6, 8:27 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 48 min |
| Jul 7, 1:34 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse | 26 min |
| Jul 7, 4:17 PM CDT | Severe Thunderstorm Warning | MKX | Iowa | 58 min |
| Jul 7, 4:42 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa | 63 min |
| Jul 7, 4:54 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 37 min |
| Jul 7, 5:29 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson | 31 min |
| Jul 8, 6:53 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 52 min |
| Jul 8, 6:58 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 47 min |
| Jul 8, 7:59 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield | 46 min |
| Jul 8, 8:03 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas, Sawyer | 42 min |
| Jul 8, 9:18 PM CDT | Severe Thunderstorm Warning | DLH | Iron | 42 min |
| Jul 8, 9:34 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron, Price | 41 min |
| Jul 8, 9:42 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 33 min |
| Jul 8, 9:56 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 64 min |
| Jul 8, 10:06 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Douglas, Sawyer, Washburn | 24 min |
| Jul 8, 10:27 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Iron, Price, Sawyer | 63 min |
| Jul 8, 11:16 PM CDT | Severe Thunderstorm Warning | GRB | Oneida, Vilas | 44 min |
| Jul 9, 1:03 AM CDT | Severe Thunderstorm Warning | GRB | Florence, Marinette | 42 min |
| Jul 9, 3:16 AM CDT | Severe Thunderstorm Warning | DLH | Douglas | 29 min |
| Jul 9, 5:38 AM CDT | Severe Thunderstorm Warning | MPX | Pierce, Saint Croix | 24 min |
| Jul 9, 5:51 AM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 13 min |
| Jul 9, 6:04 AM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 14 min |
| Jul 9, 2:17 PM CDT | Severe Thunderstorm Warning | MKX | Sauk | 23 min |
| Jul 9, 2:29 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Vernon | 61 min |
| Jul 9, 3:08 PM CDT | Severe Thunderstorm Warning | MKX | Ozaukee, Sheboygan, Washington | 36 min |
| Jul 9, 4:21 PM CDT | Severe Thunderstorm Warning | MKX | Sauk | 39 min |
| Jul 9, 4:28 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa, Sauk | 47 min |
| Jul 9, 4:55 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Iowa, Marquette, Sauk | 50 min |
| Jul 9, 5:23 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Dodge | 40 min |
| Jul 9, 6:31 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Rock, Walworth, Waukesha | 44 min |
| Jul 9, 6:52 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Milwaukee, Racine, Walworth, Waukesha | 53 min |
| Jul 9, 6:59 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Jefferson, Washington, Waukesha | 46 min |
| Jul 9, 7:24 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Milwaukee, Ozaukee, Washington, Waukesha | 66 min |
| Jul 9, 7:53 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac, Ozaukee, Sheboygan, Washington | 47 min |
| Jul 11, 7:33 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 29 min |
| Jul 11, 7:35 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 40 min |
| Jul 14, 4:10 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 35 min |
| Jul 14, 4:14 PM CDT | Severe Thunderstorm Warning | ARX | Clark | 61 min |
| Jul 14, 5:07 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 68 min |
| Jul 14, 7:24 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 33 min |
| Jul 14, 10:13 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa, Sauk | 30 min |
| Jul 15, 1:43 AM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 19 min |
| Jul 18, 4:15 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire | 29 min |
| Jul 18, 4:47 AM CDT | Severe Thunderstorm Warning | GRB | Forest, Lincoln, Oneida | 29 min |
| Jul 18, 5:19 AM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon | 26 min |
| Jul 18, 5:53 AM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Menominee, Oconto, Shawano | 52 min |
| Jul 18, 6:11 AM CDT | Severe Thunderstorm Warning | GRB | Marinette, Oconto | 64 min |
| Jul 18, 7:13 AM CDT | Severe Thunderstorm Warning | GRB | Door, Kewaunee | 47 min |
| Jul 18, 11:01 AM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 32 min |
| Jul 18, 12:57 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Racine | 18 min |
| Jul 18, 6:35 PM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 34 min |
| Jul 18, 7:56 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 49 min |
| Jul 18, 8:45 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 45 min |
| Jul 18, 9:07 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield | 23 min |
| Jul 18, 9:29 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield | 31 min |
| Jul 18, 9:57 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield | 48 min |
| Jul 18, 10:29 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Rusk | 31 min |
| Jul 18, 10:33 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron | 30 min |
| Jul 18, 11:46 PM CDT | Severe Thunderstorm Warning | DLH | Price, Sawyer | 29 min |
| Jul 19, 12:12 AM CDT | Severe Thunderstorm Warning | DLH | Price | 19 min |
| Jul 19, 12:22 AM CDT | Severe Thunderstorm Warning | GRB | Oneida | 53 min |
| Jul 19, 12:35 AM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 13 min |
| Jul 19, 12:36 AM CDT | Severe Thunderstorm Warning | ARX | Clark | 40 min |
| Jul 19, 12:51 AM CDT | Severe Thunderstorm Warning | GRB | Forest, Oneida | 39 min |
| Jul 19, 1:19 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 14 min |
| Jul 19, 1:22 AM CDT | Severe Thunderstorm Warning | ARX | Clark | 23 min |
| Jul 19, 1:22 AM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Oneida | 38 min |
| Jul 19, 1:24 AM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest | 36 min |
| Jul 19, 1:40 AM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest, Langlade, Marinette, Oconto | 80 min |
| Jul 19, 2:11 AM CDT | Severe Thunderstorm Warning | ARX | Jackson | 34 min |
| Jul 19, 2:15 AM CDT | Severe Thunderstorm Warning | GRB | Wood | 60 min |
| Jul 19, 2:19 AM CDT | Severe Thunderstorm Warning | ARX | Jackson | 26 min |
| Jul 19, 2:22 AM CDT | Severe Thunderstorm Warning | GRB | Langlade, Marathon, Menominee, Oconto, Shawano | 38 min |
| Jul 19, 3:23 AM CDT | Severe Thunderstorm Warning | ARX | Adams | 37 min |
| Jul 19, 3:38 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 37 min |
| Jul 19, 3:43 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette | 47 min |
| Jul 19, 3:46 AM CDT | Severe Thunderstorm Warning | GRB | Door | 44 min |
| Jul 19, 3:56 AM CDT | Severe Thunderstorm Warning | MKX | Sauk | 49 min |
| Jul 19, 4:13 AM CDT | Severe Thunderstorm Warning | ARX | Adams | 17 min |
| Jul 19, 4:24 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Green Lake, Marquette, Sauk | 51 min |
| Jul 19, 4:40 AM CDT | Severe Thunderstorm Warning | GRB | Brown, Kewaunee, Manitowoc | 35 min |
| Jul 19, 4:44 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac, Ozaukee, Sheboygan, Washington | 31 min |
| Jul 21, 4:16 PM CDT | Severe Thunderstorm Warning | DLH | Burnett | 59 min |
| Jul 28, 4:20 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Sheboygan | 55 min |
| Jul 28, 4:56 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 34 min |
| Jul 28, 5:22 PM CDT | Severe Thunderstorm Warning | GRB | Waushara, Winnebago | 38 min |
| Jul 28, 5:24 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 51 min |
| Jul 28, 5:57 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Winnebago | 35 min |
| Jul 28, 6:08 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Sheboygan | 52 min |
| Jul 28, 6:12 PM CDT | Severe Thunderstorm Warning | GRB | Manitowoc | 44 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bayfield County13
- Douglas County11
- Ashland County9
- Forest County7
- Oneida County7
- Fond du Lac County7
- Sauk County7
- Langlade County6
- Sheboygan County6
- Dodge County6
- Sawyer County5
- Marathon County5
- Iowa County5
- Dane County5
- Washington County5
- Lincoln County4
- Iron County4
- Price County4
- Saint Croix County4
- Ozaukee County4
- Columbia County4
- Waukesha County4
- Clark County4
- Oconto County4
- Manitowoc County3
- Shawano County3
- Jefferson County3
- Florence County3
- Marinette County3
- Marquette County3
- Milwaukee County3
- Eau Claire County3
- Jackson County3
- Adams County3
- Green Lake County3
- Burnett County2
- Brown County2
- La Crosse County2
- Waushara County2
- Vilas County2
24 more counties
- Polk County2
- Rock County2
- Walworth County2
- Racine County2
- Lafayette County2
- Wood County2
- Green County2
- Chippewa County2
- Menominee County2
- Door County2
- Kewaunee County2
- Winnebago County2
- Monroe County1
- Washburn County1
- Pierce County1
- Crawford County1
- Vernon County1
- Kenosha County1
- Grant County1
- Portage County1
- Barron County1
- Rusk County1
- Juneau County1
- Calumet 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.