During severe weather, sirens will sound for tornado warnings, storms with winds over 70 miles per hour, and/or storms with hail the size of golf balls or larger.

Sometime between 10 a.m. and noon today, the state is scheduled to conduct a statewide test of the emergency alert system.

Emergency Management will conduct the first scheduled test of 2026 to ensure the outdoor warning system is functioning properly for severe weather and other urgent hazards.

The city of Ann Arbor is considering retiring its emergency warning sirens, which use the same wailing tone for each severe weather emergency.

Plainfield Township is upgrading its emergency warning sirens as part of a county-wide initiative to make alerts more targeted and effective for residents.

The monthly test of the all-hazard Statewide Outdoor Warning Siren System is scheduled for 11:45 a.m. Wednesday. The siren test will be coordinated with a test of the Live Audio Broadcast segment of the Emergency Alert System.