National Weather ServiceWisconsinFlood WarningArchive to October 1, 2026
Flood Warnings in Wisconsin
The National Weather Service issued 58 flood warnings for Wisconsin in 2025 and 122 a year on average in 2008-2025; in 2021-2025 it had the 27th most of any state. 2026 through September: 150, 35% above the average of 112 for those months in 2008-2025. Vernon was covered most often (201 times since 2008).
How many flood warnings does Wisconsin get?
Every flood warning that covered part of Wisconsin. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 150 |
| 2025 | 58 |
| 2024 | 108 |
| 2023 | 103 |
| 2022 | 38 |
| 2021 | 35 |
| 2020 | 114 |
| 2019 | 316 |
| 2018 | 288 |
| 2017 | 170 |
| 2016 | 122 |
| 2015 | 53 |
| 2014 | 114 |
| 2013 | 146 |
| 2012 | 21 |
| 2011 | 76 |
| 2010 | 161 |
| 2009 | 73 |
| 2008 | 195 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Wisconsin get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Wisconsin?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Vernon | 201 | 29 | September 20, 2026 |
| Rock | 190 | 25 | April 20, 2026 |
| Crawford | 185 | 18 | September 20, 2026 |
| Buffalo | 146 | 16 | April 15, 2026 |
| Trempealeau | 141 | 21 | April 15, 2026 |
| Jefferson | 112 | 21 | April 18, 2026 |
| Richland | 103 | 13 | July 2, 2026 |
| Grant | 102 | 8 | April 18, 2026 |
| Green | 100 | 11 | April 18, 2026 |
| Kenosha | 98 | 10 | September 21, 2026 |
| Sauk | 95 | 12 | April 16, 2026 |
| Wood | 88 | 22 | April 18, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flood warnings for Wisconsin in AreaZine's record
NWS Milwaukee/SullivanWarningSeptember 22, 2026
Flood Warning: Lake and Kenosha, IL and WI
Expired 10:00 a.m. CDT, September 26, 2026
NWS Milwaukee/SullivanWarningSeptember 20, 2026
Flood Warning: Racine, WI
Expired 3:00 a.m. CDT, September 22, 2026
NWS Milwaukee/SullivanWarningSeptember 19, 2026
Flood Warning: Lafayette, WI
Expired 9:00 p.m. CDT, September 21, 2026
NWS La CrosseWarningSeptember 19, 2026
Flood Warning: Crawford, WI
Expired 2:00 p.m. CDT, September 23, 2026
NWS La CrosseWarningSeptember 19, 2026
Flood Warning: Crawford, WI
Expired 3:00 a.m. CDT, September 24, 2026
NWS La CrosseWarningSeptember 19, 2026
Flood Warning: Vernon, WI
Expired 5:00 a.m. CDT, September 22, 2026
NWS La CrosseWarningJuly 6, 2026
Flood Warning: Crawford, WI
Expired 2:52 p.m. CDT, July 7, 2026
NWS La CrosseWarningJuly 6, 2026
Flood Warning: Crawford, WI
Expired 7:00 a.m. CDT, July 8, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flood warning?
A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Wisconsin.