Alert archive / Wisconsin / Mesoscale Discussions
Mesoscale Discussions in Wisconsin, 2020
101 mesoscale discussions in 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Mesoscale Discussions
- 101
- Busiest month
- August30 mesoscale discussions
- Busiest day
- August 10, 20209 mesoscale discussions
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 |
|---|---|---|---|---|
| Jan 10, 5:50 PM CST | Mesoscale Discussion | SPC | Columbia, Crawford, Dane, Dodge, Fond du Lac, Grant and 12 more | 6 hr |
| Feb 9, 6:39 AM CST | Mesoscale Discussion | SPC | Adams, Buffalo, Chippewa, Clark, Columbia, Crawford and 19 more | 4 hr |
| Feb 9, 10:56 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Columbia, Dane, Dodge and 23 more | 5 hr |
| Feb 17, 3:27 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Columbia, Crawford, Dane and 22 more | 4 hr |
| Mar 28, 6:42 PM CDT | Mesoscale Discussion | SPC | Grant, Green, Iowa, Lafayette | 93 min |
| Apr 6, 11:03 PM CDT | Mesoscale Discussion | SPC | Kenosha | 2 hr |
| Apr 7, 3:06 PM CDT | Mesoscale Discussion | SPC | Brown, Calumet, Columbia, Dane, Dodge, Fond du Lac and 15 more | 114 min |
| Apr 7, 5:07 PM CDT | Mesoscale Discussion | SPC | Green, Kenosha, Lafayette, Milwaukee, Rock, Walworth and 1 more | 83 min |
| Apr 7, 5:59 PM CDT | Mesoscale Discussion | SPC | Racine | 91 min |
| Apr 12, 12:38 PM CDT | Mesoscale Discussion | SPC | Barron, Chippewa, Dunn, Iron, Pepin, Pierce and 6 more | 3 hr |
| May 23, 2:51 PM CDT | Mesoscale Discussion | SPC | Crawford, Dane, Grant, Green, Iowa, Jefferson and 7 more | 84 min |
| May 25, 10:59 AM CDT | Mesoscale Discussion | SPC | Chippewa, Florence, Forest, Iron, Langlade, Lincoln and 14 more | 61 min |
| May 26, 6:02 PM CDT | Mesoscale Discussion | SPC | Barron, Buffalo, Chippewa, Clark, Dunn, Eau Claire and 11 more | 88 min |
| Jun 1, 11:44 AM CDT | Mesoscale Discussion | SPC | Burnett | 61 min |
| Jun 2, 3:52 PM CDT | Mesoscale Discussion | SPC | Buffalo, Chippewa, Dunn, Eau Claire, La Crosse, Pepin and 4 more | 113 min |
| Jun 2, 5:32 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Buffalo, Calumet, Clark, Columbia and 38 more | 118 min |
| Jun 2, 9:28 PM CDT | Mesoscale Discussion | SPC | Jefferson, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and 1 more | 2 hr |
| Jun 4, 5:14 PM CDT | Mesoscale Discussion | SPC | Crawford, Grant | 91 min |
| Jun 4, 10:50 PM CDT | Mesoscale Discussion | SPC | Crawford, Grant, Iowa, Lafayette, Richland, Vernon | 115 min |
| Jun 5, 12:26 PM CDT | Mesoscale Discussion | SPC | Green, Jefferson, Kenosha, Lafayette, Milwaukee, Racine and 3 more | 94 min |
| Jun 11, 3:26 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Chippewa, Clark, Columbia and 32 more | 94 min |
| Jun 21, 3:22 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Clark and 18 more | 113 min |
| Jun 21, 6:14 PM CDT | Mesoscale Discussion | SPC | Barron, Buffalo, Chippewa, Clark, Dunn, Eau Claire and 12 more | 2 hr |
| Jun 21, 9:09 PM CDT | Mesoscale Discussion | SPC | Adams, Clark, Crawford, Grant, Iowa, Jackson and 14 more | 2 hr |
| Jun 26, 12:38 PM CDT | Mesoscale Discussion | SPC | Adams, Columbia, Crawford, Dane, Dodge, Fond du Lac and 20 more | 2 hr |
| Jun 26, 3:39 PM CDT | Mesoscale Discussion | SPC | Dane, Grant, Green, Iowa, Jefferson, Kenosha and 4 more | 2 hr |
| Jun 29, 1:22 AM CDT | Mesoscale Discussion | SPC | Dunn, Pepin, Pierce, Saint Croix | 2 hr |
| Jun 29, 1:28 PM CDT | Mesoscale Discussion | SPC | Adams, Calumet, Columbia, Crawford, Dane, Dodge and 15 more | 92 min |
| Jul 7, 1:23 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Columbia, Crawford, Dane, Dodge and 17 more | 2 hr |
| Jul 8, 6:17 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Burnett, Douglas, Polk, Washburn | 118 min |
| Jul 8, 7:58 PM CDT | Mesoscale Discussion | SPC | Burnett, Douglas, Washburn | 2 hr |
| Jul 8, 9:51 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Burnett, Douglas, Iron, Polk and 3 more | 114 min |
| Jul 9, 10:24 AM CDT | Mesoscale Discussion | SPC | Crawford, Grant, Vernon | 3 hr |
| Jul 9, 2:51 PM CDT | Mesoscale Discussion | SPC | Columbia, Crawford, Dane, Dodge, Grant, Green and 16 more | 114 min |
| Jul 9, 5:39 PM CDT | Mesoscale Discussion | SPC | Columbia, Dane, Dodge, Green, Iowa, Jefferson and 7 more | 96 min |
| Jul 14, 7:58 AM CDT | Mesoscale Discussion | SPC | Buffalo, Dunn, Eau Claire, Pepin, Pierce, Saint Croix and 1 more | 92 min |
| Jul 14, 3:14 PM CDT | Mesoscale Discussion | SPC | Buffalo, Eau Claire, Jackson, La Crosse, Monroe, Trempealeau and 1 more | 2 hr |
| Jul 17, 5:09 PM CDT | Mesoscale Discussion | SPC | Burnett | 2 hr |
| Jul 17, 9:03 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Buffalo, Burnett, Chippewa and 18 more | 117 min |
| Jul 17, 11:36 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Clark and 18 more | 114 min |
| Jul 18, 1:31 AM CDT | Mesoscale Discussion | SPC | Barron, Burnett, Chippewa, Dunn, Eau Claire, Pepin and 8 more | 89 min |
| Jul 18, 4:02 AM CDT | Mesoscale Discussion | SPC | Buffalo, Clark, Eau Claire, Florence, Forest, Jackson and 12 more | 88 min |
| Jul 18, 11:00 AM CDT | Mesoscale Discussion | SPC | Dane, Green, Jefferson, Lafayette, Rock, Walworth and 1 more | 2 hr |
| Jul 18, 3:12 PM CDT | Mesoscale Discussion | SPC | Barron, Bayfield, Burnett, Chippewa, Douglas, Dunn and 7 more | 93 min |
| Jul 18, 6:15 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Burnett, Douglas, Iron and 6 more | 60 min |
| Jul 18, 8:36 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Douglas and 19 more | 114 min |
| Jul 19, 1:13 AM CDT | Mesoscale Discussion | SPC | Brown, Clark, Door, Eau Claire, Florence, Forest and 17 more | 92 min |
| Jul 19, 3:44 AM CDT | Mesoscale Discussion | SPC | Adams, Calumet, Columbia, Dane, Dodge, Fond du Lac and 10 more | 91 min |
| Jul 21, 1:43 PM CDT | Mesoscale Discussion | SPC | Barron, Bayfield, Buffalo, Burnett, Chippewa, Clark and 16 more | 2 hr |
| Jul 21, 6:13 PM CDT | Mesoscale Discussion | SPC | Adams, Barron, Buffalo, Chippewa, Clark, Dunn and 18 more | 62 min |
| Jul 26, 5:33 PM CDT | Mesoscale Discussion | SPC | Columbia, Dane, Dodge, Fond du Lac, Green, Iowa and 12 more | 87 min |
| Aug 7, 8:02 PM CDT | Mesoscale Discussion | SPC | Burnett, Polk | 118 min |
| Aug 7, 11:25 PM CDT | Mesoscale Discussion | SPC | Burnett, Polk | 95 min |
| Aug 8, 5:00 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Eau Claire, Jackson, Juneau, La Crosse and 9 more | 2 hr |
| Aug 9, 12:30 PM CDT | Mesoscale Discussion | SPC | Barron, Bayfield, Burnett, Chippewa, Clark, Douglas and 15 more | 3 hr |
| Aug 9, 1:30 PM CDT | Mesoscale Discussion | SPC | Columbia, Crawford, Dane, Grant, Green, Iowa and 6 more | 2 hr |
| Aug 9, 3:46 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Forest, Iron, Langlade, Lincoln and 7 more | 89 min |
| Aug 9, 7:01 PM CDT | Mesoscale Discussion | SPC | Florence, Iron, Vilas | 119 min |
| Aug 9, 10:59 PM CDT | Mesoscale Discussion | SPC | Barron, Buffalo, Chippewa, Clark, Dunn, Eau Claire and 11 more | 3 hr |
| Aug 10, 2:30 AM CDT | Mesoscale Discussion | SPC | Buffalo, Dunn, Eau Claire, Jackson, La Crosse, Pepin and 4 more | 90 min |
| Aug 10, 6:42 AM CDT | Mesoscale Discussion | SPC | Adams, Columbia, Green Lake, Juneau, La Crosse, Marquette and 6 more | 2 hr |
| Aug 10, 10:42 AM CDT | Mesoscale Discussion | SPC | Crawford, Dane, Grant, Green, Iowa, Jefferson and 10 more | 93 min |
| Aug 10, 12:44 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Columbia, Door, Florence and 20 more | 61 min |
| Aug 10, 1:36 PM CDT | Mesoscale Discussion | SPC | Green, Kenosha, Lafayette, Racine, Rock, Walworth | 114 min |
| Aug 10, 3:36 PM CDT | Mesoscale Discussion | SPC | Kenosha, Milwaukee, Racine, Walworth, Waukesha | 84 min |
| Aug 10, 3:46 PM CDT | Mesoscale Discussion | SPC | Door | 89 min |
| Aug 14, 7:28 PM CDT | Mesoscale Discussion | SPC | Burnett, Douglas, Polk, Saint Croix | 92 min |
| Aug 14, 10:21 PM CDT | Mesoscale Discussion | SPC | Buffalo, Chippewa, Eau Claire, Pepin, Rusk | 54 min |
| Aug 15, 4:40 PM CDT | Mesoscale Discussion | SPC | Kenosha | 95 min |
| Aug 21, 5:26 PM CDT | Mesoscale Discussion | SPC | Florence, Forest, Marinette | 94 min |
| Aug 21, 9:54 PM CDT | Mesoscale Discussion | SPC | Dunn, Pepin, Pierce, Polk, Saint Croix | 2 hr |
| Aug 22, 4:54 PM CDT | Mesoscale Discussion | SPC | Burnett, Douglas | 3 hr |
| Aug 24, 4:00 PM CDT | Mesoscale Discussion | SPC | Buffalo, Crawford, La Crosse, Monroe, Pierce, Trempealeau and 1 more | 90 min |
| Aug 24, 10:55 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Chippewa, Clark, Columbia, Dane and 21 more | 2 hr |
| Aug 25, 10:07 AM CDT | Mesoscale Discussion | SPC | Calumet, Dodge, Fond du Lac, Green Lake, Kenosha, Marquette and 8 more | 113 min |
| Aug 25, 11:40 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Florence, Forest, Iron, Marinette and 2 more | 3 hr |
| Aug 26, 6:19 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Douglas, Iron | 86 min |
| Aug 28, 4:04 AM CDT | Mesoscale Discussion | SPC | Pierce | 86 min |
| Aug 28, 6:59 AM CDT | Mesoscale Discussion | SPC | Barron, Buffalo, Chippewa, Clark, Dunn, Eau Claire and 7 more | 91 min |
| Aug 28, 2:56 PM CDT | Mesoscale Discussion | SPC | Crawford, Grant, Green, Iowa, Lafayette, Richland and 1 more | 64 min |
| Aug 28, 5:29 PM CDT | Mesoscale Discussion | SPC | Walworth | 91 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | Crawford, Grant, Lafayette | 88 min |
| Sep 6, 6:47 PM CDT | Mesoscale Discussion | SPC | Calumet, Manitowoc, Milwaukee, Ozaukee, Sheboygan | 118 min |
| Sep 6, 9:32 PM CDT | Mesoscale Discussion | SPC | Kenosha, Racine | 118 min |
| Sep 25, 5:31 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Iron, Sawyer | 119 min |
| Sep 25, 8:47 PM CDT | Mesoscale Discussion | SPC | Vilas | 118 min |
| Sep 26, 3:07 PM CDT | Mesoscale Discussion | SPC | Brown, Clark, Door, Florence, Forest, Kewaunee and 15 more | 83 min |
| Sep 26, 5:17 PM CDT | Mesoscale Discussion | SPC | Barron, Burnett, Chippewa, Dunn, Florence, Forest and 11 more | 118 min |
| Oct 14, 4:23 PM CDT | Mesoscale Discussion | SPC | Barron, Burnett, Chippewa, Polk, Rusk, Saint Croix and 2 more | 2 hr |
| Oct 20, 7:06 PM CDT | Mesoscale Discussion | SPC | Florence, Forest, Langlade, Lincoln, Marathon, Menominee | 4 hr |
| Oct 22, 4:53 PM CDT | Mesoscale Discussion | SPC | Columbia, Crawford, Dane, Grant, Green, Iowa and 5 more | 2 hr |
| Nov 10, 9:19 AM CST | Mesoscale Discussion | SPC | Barron, Dunn, Pierce, Rusk, Saint Croix, Sawyer | 5 hr |
| Nov 10, 1:28 PM CST | Mesoscale Discussion | SPC | Dodge, Green, Jefferson, Kenosha, Milwaukee, Ozaukee and 6 more | 92 min |
| Nov 10, 3:30 PM CST | Mesoscale Discussion | SPC | Milwaukee, Racine, Walworth, Waukesha | 2 hr |
| Nov 10, 3:51 PM CST | Mesoscale Discussion | SPC | Burnett, Polk, Saint Croix | 6 hr |
| Nov 10, 5:03 PM CST | Mesoscale Discussion | SPC | Kenosha, Racine | 57 min |
| Dec 23, 12:33 PM CST | Mesoscale Discussion | SPC | Burnett, Douglas, Pierce, Polk, Saint Croix, Washburn | 4 hr |
| Dec 23, 5:15 PM CST | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Burnett, Douglas, Dunn and 8 more | 6 hr |
| Dec 29, 2:17 PM CST | Mesoscale Discussion | SPC | Grant, Green, Lafayette, Rock | 4 hr |
| Dec 29, 3:52 PM CST | Mesoscale Discussion | SPC | Jefferson, Kenosha, Milwaukee, Racine, Walworth, Waukesha | 4 hr |
| Dec 30, 1:15 AM CST | Mesoscale Discussion | SPC | Kenosha, Milwaukee, Racine, Walworth | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Saint Croix County28
- Pierce County26
- Waukesha County24
- Dunn County24
- Eau Claire County23
- Pepin County23
- Polk County23
- Burnett County23
- Green County22
- Jefferson County22
- Chippewa County22
- Rusk County22
- Dane County21
- Lafayette County21
- Sauk County21
- Trempealeau County21
- Vernon County21
- Kenosha County21
- Sawyer County21
- Iowa County20
- Richland County20
- La Crosse County20
- Milwaukee County20
- Walworth County20
- Washburn County20
- Columbia County19
- Crawford County19
- Grant County19
- Rock County19
- Buffalo County19
- Jackson County19
- Racine County19
- Barron County19
- Clark County18
- Monroe County18
- Iron County18
- Taylor County18
- Washington County17
- Marquette County17
- Dodge County16
32 more counties
- Douglas County16
- Adams County15
- Price County15
- Bayfield County15
- Green Lake County14
- Juneau County14
- Wood County14
- Lincoln County14
- Marathon County14
- Vilas County14
- Fond du Lac County13
- Waushara County13
- Oneida County13
- Portage County12
- Ashland County12
- Ozaukee County11
- Florence County11
- Forest County11
- Sheboygan County10
- Calumet County10
- Winnebago County10
- Outagamie County9
- Waupaca County9
- Langlade County9
- Brown County8
- Shawano County8
- Marinette County8
- Manitowoc County7
- Menominee County7
- Oconto County5
- Kewaunee County4
- Door County4
The busiest days
Days with the most alerts issued, by UTC date.
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.