Alert archive / Michigan / Special Marine Warnings / 2021

Special Marine Warnings in Michigan, September 2021

52 special marine warnings in September 2021. 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 special marine warnings reaches back to 1986.

Special Marine Warnings by county

Each county as a circle sized by its count in September 2021. Tap one for its archive.

Special Marine Warnings
52
Busiest day
September 7, 202122 special marine warnings

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.

IssuedProductOfficeCountiesLasted
Sep 7, 3:15 AM EDTSpecial Marine WarningMQT45 min
Sep 7, 4:10 AM EDTSpecial Marine WarningMQT50 min
Sep 7, 4:49 AM EDTSpecial Marine WarningMQT41 min
Sep 7, 7:26 AM EDTSpecial Marine WarningAPX2 hr
Sep 7, 7:32 AM EDTSpecial Marine WarningMQT28 min
Sep 7, 7:55 AM EDTSpecial Marine WarningAPX95 min
Sep 7, 8:26 AM EDTSpecial Marine WarningAPX64 min
Sep 7, 9:27 AM EDTSpecial Marine WarningAPX33 min
Sep 7, 10:49 AM EDTSpecial Marine WarningAPX56 min
Sep 7, 11:50 AM EDTSpecial Marine WarningGRR91 min
Sep 7, 12:40 PM EDTSpecial Marine WarningGRR87 min
Sep 7, 1:10 PM EDTSpecial Marine WarningAPX2 hr
Sep 7, 1:30 PM EDTSpecial Marine WarningGRR60 min
Sep 7, 1:31 PM EDTSpecial Marine WarningAPX67 min
Sep 7, 2:51 PM EDTSpecial Marine WarningDTX114 min
Sep 7, 3:12 PM EDTSpecial Marine WarningAPX70 min
Sep 7, 3:31 PM EDTSpecial Marine WarningDTX77 min
Sep 7, 3:37 PM EDTSpecial Marine WarningGRR83 min
Sep 7, 4:03 PM EDTSpecial Marine WarningDTX92 min
Sep 7, 6:18 PM EDTSpecial Marine WarningDTX97 min
Sep 7, 6:54 PM EDTSpecial Marine WarningDTX88 min
Sep 7, 7:14 PM EDTSpecial Marine WarningDTX61 min
Sep 7, 8:46 PM EDTSpecial Marine WarningDTX89 min
Sep 7, 9:00 PM EDTSpecial Marine WarningDTX75 min
Sep 12, 2:29 PM EDTSpecial Marine WarningGRR61 min
Sep 12, 4:29 PM EDTSpecial Marine WarningDTX52 min
Sep 12, 5:31 PM EDTSpecial Marine WarningGRR82 min
Sep 12, 6:35 PM EDTSpecial Marine WarningDTX36 min
Sep 12, 8:31 PM EDTSpecial Marine WarningDTX74 min
Sep 13, 4:52 AM EDTSpecial Marine WarningGRR113 min
Sep 13, 10:33 AM EDTSpecial Marine WarningGRR87 min
Sep 13, 2:13 PM EDTSpecial Marine WarningDTX62 min
Sep 14, 5:26 AM EDTSpecial Marine WarningMQT64 min
Sep 14, 5:51 AM EDTSpecial Marine WarningAPX84 min
Sep 14, 8:00 AM EDTSpecial Marine WarningAPX60 min
Sep 14, 8:14 AM EDTSpecial Marine WarningAPX31 min
Sep 14, 8:50 AM EDTSpecial Marine WarningAPX55 min
Sep 14, 9:40 AM EDTSpecial Marine WarningAPX81 min
Sep 14, 3:58 PM EDTSpecial Marine WarningAPX62 min
Sep 14, 4:05 PM EDTSpecial Marine WarningDTX55 min
Sep 14, 4:12 PM EDTSpecial Marine WarningDTX45 min
Sep 14, 5:08 PM EDTSpecial Marine WarningDTX115 min
Sep 14, 6:04 PM EDTSpecial Marine WarningDTX86 min
Sep 14, 7:46 PM EDTSpecial Marine WarningDTX89 min
Sep 14, 8:02 PM EDTSpecial Marine WarningDTX88 min
Sep 14, 8:10 PM EDTSpecial Marine WarningDTX65 min
Sep 20, 6:39 PM EDTSpecial Marine WarningAPX67 min
Sep 20, 7:04 PM EDTSpecial Marine WarningMQT56 min
Sep 20, 7:56 PM EDTSpecial Marine WarningMQT34 min
Sep 20, 8:17 PM EDTSpecial Marine WarningMQT28 min
Sep 20, 8:27 PM EDTSpecial Marine WarningMQT48 min
Sep 21, 12:56 AM EDTSpecial Marine WarningAPX2 hr

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.