National Weather ServiceMichiganFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in Michigan
The National Weather Service issued 19 flash flood warnings for Michigan in 2025 and 17 a year on average in 2008-2025; in 2021-2025 it had the 45th most of any state. 2026 through September: 28, 66% above the average of 17 for those months in 2008-2025. Wayne was covered most often (35 times since 2008).
How many flash flood warnings does Michigan get?
Every flash flood warning that covered part of Michigan. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 28 |
| 2025 | 19 |
| 2024 | 6 |
| 2023 | 15 |
| 2022 | 7 |
| 2021 | 19 |
| 2020 | 30 |
| 2019 | 12 |
| 2018 | 18 |
| 2017 | 10 |
| 2016 | 9 |
| 2015 | 9 |
| 2014 | 11 |
| 2013 | 15 |
| 2012 | 23 |
| 2011 | 42 |
| 2010 | 23 |
| 2009 | 11 |
| 2008 | 29 |
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 Michigan 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 Michigan?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Wayne | 35 | 7 | September 18, 2025 |
| Macomb | 25 | 7 | July 28, 2025 |
| Oakland | 25 | 5 | July 31, 2025 |
| Grand Traverse | 17 | 6 | July 21, 2026 |
| Manistee | 17 | 5 | April 15, 2026 |
| Berrien | 16 | 3 | July 16, 2024 |
| Washtenaw | 16 | 4 | September 24, 2025 |
| Alcona | 14 | 7 | July 31, 2026 |
| Cass | 14 | 2 | July 29, 2023 |
| Leelanau | 14 | 7 | July 21, 2026 |
| Wexford | 14 | 4 | April 15, 2026 |
| Antrim | 12 | 7 | June 29, 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 flash flood warnings for Michigan in AreaZine's record
NWS GaylordWarningJuly 31, 2026
Flash Flood Warning: Alcona and Alpena, MI
Expired 9:30 p.m. EDT, July 31, 2026
NWS GaylordWarningJuly 27, 2026
Flash Flood Warning: Crawford and Kalkaska, MI
Expired 12:15 a.m. EDT, July 28, 2026
NWS GaylordWarningJuly 21, 2026
Flash Flood Warning: Grand Traverse, MI
Expired 3:45 a.m. EDT, July 21, 2026
NWS MarquetteWarningJuly 20, 2026
Flash Flood Warning: Alger, MI
Expired 10:15 p.m. EDT, July 20, 2026
NWS GaylordWarningJune 29, 2026
Flash Flood Warning: Cheboygan, MI
Expired 5:45 p.m. EDT, June 29, 2026
NWS GaylordWarningJune 29, 2026
Flash Flood Warning: Emmet, MI
Expired 4:30 p.m. EDT, June 29, 2026
NWS GaylordWarningJune 29, 2026
Flash Flood Warning: Antrim, MI
Expired 1:30 p.m. EDT, June 29, 2026
NWS GaylordWarningJune 25, 2026
Flash Flood Warning: Roscommon, MI
Expired 6:00 p.m. EDT, June 25, 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 flash flood warning?
A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. 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 Michigan.