ArborWX has details on outdoor emergency siren tests which begin this month in the City and County, plus what to do when they sound for real (spoiler: take cover and tune to WEMU 89.1 FM or WWWW 102.9 FM).
Washtenaw County operated sirens will be tested at noon on the first Saturday of every month from March through October. This means that this Saturday, March 5, at noon is the first Washtenaw County siren test of the year.
The City of Ann Arbor’s sirens are tested every second Tuesday of the month at 1:00 pm. Testing of sirens is performed from March through November. This means that this Tuesday, March 8, at 1 pm. is the first City siren test of the year.