Alert archive / Michigan / Frost Advisories / 2020
Frost Advisories in Michigan, September 2020
13 frost advisories in September 2020. 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 frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count in September 2020. Tap one for its archive.
- Frost Advisories
- 13
- Busiest day
- September 18, 20204 frost advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Sep 9, 4:32 AM EDT | Frost Advisory | MQT | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more | 28 hr |
| Sep 10, 3:22 PM EDT | Frost Advisory | MQT | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 18 hr |
| Sep 13, 3:21 PM EDT | Frost Advisory | MQT | Baraga, Gogebic, Houghton, Iron, Ontonagon | 18 hr |
| Sep 16, 3:59 AM EDT | Frost Advisory | MQT | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 29 hr |
| Sep 17, 3:17 AM EDT | Frost Advisory | APX | Arenac, Benzie, Charlevoix, Gladwin, Iosco, Leelanau | 29 hr |
| Sep 17, 3:38 AM EDT | Frost Advisory | GRR | Clare, Isabella, Lake, Mason, Mecosta, Montcalm and 3 more | 28 hr |
| Sep 18, 3:06 AM EDT | Frost Advisory | IWX | Branch, Cass, Hillsdale, Saint Joseph | 30 hr |
| Sep 18, 9:03 AM EDT | Frost Advisory | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 11 more | 24 hr |
| Sep 18, 9:37 AM EDT | Frost Advisory | APX | Charlevoix, Chippewa, Leelanau, Mackinac | 23 hr |
| Sep 18, 11:10 AM EDT | Frost Advisory | DTX | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 22 hr |
| Sep 19, 11:38 AM EDT | Frost Advisory | GRR | Clare, Clinton, Gratiot, Ionia, Isabella, Kent and 6 more | 21 hr |
| Sep 19, 11:50 AM EDT | Frost Advisory | APX | Alcona, Arenac, Crawford, Gladwin, Grand Traverse, Iosco and 7 more | 21 hr |
| Sep 19, 12:08 PM EDT | Frost Advisory | DTX | Bay, Genesee, Huron, Lapeer, Midland, Saginaw and 4 more | 21 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baraga County4
- Gogebic County4
- Houghton County4
- Iron County4
- Ontonagon County4
- Dickinson County3
- Marquette County3
- Isabella County3
- Montcalm County3
- Alger County2
- Delta County2
- Luce County2
- Schoolcraft County2
- Arenac County2
- Charlevoix County2
- Gladwin County2
- Iosco County2
- Leelanau County2
- Clare County2
- Lake County2
- Mason County2
- Mecosta County2
- Newaygo County2
- Oceana County2
- Osceola County2
- Clinton County2
- Gratiot County2
- Ionia County2
- Kent County2
- Bay County2
- Genesee County2
- Huron County2
- Lapeer County2
- Midland County2
- Saginaw County2
- Saint Clair County2
- Sanilac County2
- Shiawassee County2
- Tuscola County2
- Menominee County1
35 more counties
- Keweenaw County1
- Benzie County1
- Branch County1
- Cass County1
- Hillsdale County1
- Saint Joseph County1
- Allegan County1
- Barry County1
- Calhoun County1
- Eaton County1
- Ingham County1
- Jackson County1
- Kalamazoo County1
- Muskegon County1
- Ottawa County1
- Van Buren County1
- Chippewa County1
- Mackinac County1
- Lenawee County1
- Livingston County1
- Macomb County1
- Monroe County1
- Oakland County1
- Washtenaw County1
- Wayne County1
- Alcona County1
- Crawford County1
- Grand Traverse County1
- Kalkaska County1
- Manistee County1
- Missaukee County1
- Ogemaw County1
- Oscoda County1
- Roscommon County1
- Wexford County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.