Extreme Heat Warnings in Wisconsin
16 extreme heat warnings since 1986. 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 extreme heat warnings reaches back to 2005.
Extreme Heat Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Extreme Heat Warnings
- 16
- Busiest year
- 202611 extreme heat warnings
- Average year
- 8over 2 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Burnett County6
- Washburn County6
- Ashland County5
- Bayfield County5
- Douglas County5
- Sawyer County5
- Barron County4
- Chippewa County4
- Dunn County4
- Eau Claire County4
- Pepin County4
- Pierce County4
- Polk County4
- Saint Croix County4
- Rusk County3
- Iron County2
- Kenosha County2
- Milwaukee County2
- Racine County2
- Adams County2
- Buffalo County2
- Columbia County2
- Crawford County2
- Dane County2
- Grant County2
- Green County2
- Green Lake County2
- Iowa County2
- Jackson County2
- Juneau County2
- La Crosse County2
- Lafayette County2
- Marquette County2
- Monroe County2
- Richland County2
- Rock County2
- Sauk County2
- Trempealeau County2
- Vernon County2
- Price County1
26 more counties
- Brown County1
- Calumet County1
- Clark County1
- Dodge County1
- Door County1
- Florence County1
- Fond du Lac County1
- Jefferson County1
- Kewaunee County1
- Manitowoc County1
- Marathon County1
- Marinette County1
- Menominee County1
- Oconto County1
- Outagamie County1
- Ozaukee County1
- Portage County1
- Shawano County1
- Sheboygan County1
- Walworth County1
- Washington County1
- Waukesha County1
- Waupaca County1
- Waushara County1
- Winnebago County1
- Wood County1
The latest extreme heat warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 9:06 AM CDT | Extreme Heat Warning | MKX | Columbia, Dane, Green, Green Lake, Iowa, Lafayette and 3 more | 12 hr |
| Jul 25, 11:52 AM CDT | Extreme Heat Warning | DLH | Ashland, Bayfield, Burnett, Douglas, Sawyer, Washburn | 33 hr |
| Jul 25, 2:20 AM CDT | Extreme Heat Warning | ARX | Adams, Buffalo, Crawford, Grant, Jackson, Juneau and 5 more | 67 hr |
| Jul 24, 12:59 PM CDT | Extreme Heat Warning | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more | 56 hr |
| Jul 12, 2:43 AM CDT | Extreme Heat Warning | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more | 6 days |
| Jul 11, 1:33 PM CDT | Extreme Heat Warning | DLH | Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer and 1 more | 4 days |
| Jun 28, 12:45 PM CDT | Extreme Heat Warning | DLH | Burnett, Washburn | 35 hr |
| Jun 28, 11:55 AM CDT | Extreme Heat Warning | MKX | Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more | 4 days |
| Jun 28, 11:54 AM CDT | Extreme Heat Warning | GRB | Brown, Calumet, Door, Florence, Kewaunee, Manitowoc and 11 more | 55 hr |
| Jun 28, 12:44 AM CDT | Extreme Heat Warning | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 2 more | 47 hr |
| Jun 28, 12:34 AM CDT | Extreme Heat Warning | ARX | Adams, Buffalo, Clark, Crawford, Grant, Jackson and 6 more | 68 hr |
Nearby
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.