Alert archive / Michigan / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Michigan, 2015

11 severe thunderstorm watches in 2015. 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 severe thunderstorm watches reaches back to 1997.

Severe Thunderstorm Watches by county

Each county as a circle sized by its count in 2015. Tap one for its archive.

Severe Thunderstorm Watches
11
Busiest month
August4 severe thunderstorm watches
Busiest day
August 2, 20153 severe thunderstorm watches

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.

IssuedProductOfficeCountiesLasted
Apr 9, 9:55 PM EDTSevere Thunderstorm WatchSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 22 more5 hr
May 26, 2:23 PM EDTSevere Thunderstorm WatchSPCBranch, Hillsdale, Saint Joseph4 hr
May 26, 3:01 PM EDTSevere Thunderstorm WatchSPCAlcona, Allegan, Alpena, Antrim, Arenac, Barry and 53 more6 hr
May 27, 1:08 PM EDTSevere Thunderstorm WatchSPCHillsdale, Lenawee, Livingston, Macomb, Monroe, Oakland and 3 more6 hr
Jun 14, 1:46 PM EDTSevere Thunderstorm WatchSPCBranch, Hillsdale, Lenawee, Monroe, Washtenaw, Wayne7 hr
Jun 22, 1:23 PM EDTSevere Thunderstorm WatchSPCAllegan, Arenac, Barry, Bay, Calhoun, Clare and 34 more4 hr
Jun 22, 5:48 PM EDTSevere Thunderstorm WatchSPCDickinson, Gogebic, Iron, Menominee, Ontonagon4 hr
Aug 2, 9:51 AM EDTSevere Thunderstorm WatchSPCAlcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 19 more7 hr
Aug 2, 3:59 PM EDTSevere Thunderstorm WatchSPCAlcona, Allegan, Alpena, Antrim, Arenac, Barry and 35 more7 hr
Aug 2, 6:27 PM EDTSevere Thunderstorm WatchSPCAllegan, Barry, Bay, Calhoun, Clare, Clinton and 34 more6 hr
Aug 2, 9:30 PM EDTSevere Thunderstorm WatchSPCBerrien, Branch, Cass, Hillsdale, Saint Joseph5 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

35 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20142016

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.