Alert archive / Michigan / Heat Advisories
Heat Advisories in Michigan, 2023
6 heat advisories in 2023. 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 2023. Tap one for its archive.
- Heat Advisories
- 6
- Busiest month
- August4 heat advisories
- Busiest day
- July 26, 20232 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 |
|---|---|---|---|---|
| Jul 26, 3:03 AM EDT | Heat Advisory | IWX | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 66 hr |
| Jul 26, 10:24 AM EDT | Heat Advisory | IWX | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 50 hr |
| Aug 21, 2:48 PM EDT | Heat Advisory | IWX | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 68 hr |
| Aug 22, 4:12 AM EDT | Heat Advisory | GRR | Allegan, Barry, Calhoun, Kalamazoo, Kent, Ottawa and 1 more | 65 hr |
| Aug 23, 4:18 AM EDT | Heat Advisory | GRR | Eaton, Ingham, Jackson | 41 hr |
| Aug 23, 3:20 PM EDT | Heat Advisory | DTX | Lenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Berrien County3
- Branch County3
- Cass County3
- Hillsdale County3
- Saint Joseph County3
- Allegan County1
- Barry County1
- Calhoun County1
- Kalamazoo County1
- Kent County1
- Ottawa County1
- Van Buren County1
- Eaton County1
- Ingham County1
- Jackson County1
- Lenawee County1
- Livingston County1
- Macomb County1
- Monroe County1
- Oakland County1
- Washtenaw County1
- Wayne County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.