Alert archive / Michigan / Heat Advisories
Heat Advisories in Michigan, 2024
6 heat advisories in 2024. 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Heat Advisories
- 6
- Busiest month
- June3 heat advisories
- Busiest day
- June 17, 20243 heat advisories
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 3:04 AM EDT | Heat Advisory | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 13 more | 6 days |
| Jun 17, 3:30 AM EDT | Heat Advisory | DTX | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 4 days |
| Jun 17, 4:24 AM EDT | Heat Advisory | IWX | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 6 days |
| Aug 26, 12:53 PM EDT | Heat Advisory | DTX | Bay, Genesee, Lenawee, Livingston, Macomb, Midland and 6 more | 29 hr |
| Aug 26, 1:20 PM EDT | Heat Advisory | GRR | Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more | 29 hr |
| Aug 26, 2:29 PM EDT | Heat Advisory | IWX | Branch, Hillsdale, Saint Joseph | 32 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegan County2
- Barry County2
- Calhoun County2
- Clinton County2
- Eaton County2
- Gratiot County2
- Ingham County2
- Ionia County2
- Isabella County2
- Jackson County2
- Kalamazoo County2
- Kent County2
- Mecosta County2
- Montcalm County2
- Muskegon County2
- Newaygo County2
- Oceana County2
- Ottawa County2
- Van Buren County2
- Bay County2
- Genesee County2
- Lenawee County2
- Livingston County2
- Macomb County2
- Midland County2
- Monroe County2
- Oakland County2
- Saginaw County2
- Shiawassee County2
- Washtenaw County2
- Wayne County2
- Branch County2
- Hillsdale County2
- Saint Joseph County2
- Huron County1
- Lapeer County1
- Saint Clair County1
- Sanilac County1
- Tuscola County1
- Berrien County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.