Extreme Heat Warnings in Michigan
6 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
- 6
- Busiest year
- 20264 extreme heat warnings
- Average year
- 3over 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.
- Berrien County2
- Branch County2
- Cass County2
- Genesee County2
- Hillsdale County2
- Macomb County2
- Oakland County2
- Saint Joseph County2
- Wayne County2
- Alger County1
- Allegan County1
- Baraga County1
- Barry County1
- Bay County1
- Calhoun County1
- Clare County1
- Clinton County1
- Delta County1
- Dickinson County1
- Eaton County1
- Gogebic County1
- Gratiot County1
- Houghton County1
- Huron County1
- Ingham County1
- Ionia County1
- Iron County1
- Isabella County1
- Jackson County1
- Kalamazoo County1
- Kent County1
- Keweenaw County1
- Lake County1
- Lapeer County1
- Lenawee County1
- Livingston County1
- Luce County1
- Marquette County1
- Mason County1
- Mecosta County1
18 more counties
The latest extreme heat warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:31 PM EDT | Extreme Heat Warning | MQT | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 7 more | 55 hr |
| Jun 29, 1:57 PM EDT | Extreme Heat Warning | DTX | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 4 days |
| Jun 28, 1:29 PM EDT | Extreme Heat Warning | IWX | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 5 days |
| Jun 28, 1:26 PM EDT | Extreme Heat Warning | GRR | Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more | 4 days |
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.