Early Warning Siren locations and tones

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Isabella County has 29 outdoor warning sirens located throughout the county. The purpose of these sirens is to warn the public of impending disasters or emergencies. The sirens will be activated immediately to warn the public of an emergency situation. These sirens notify the public to go inside and turn on the radio or television for further information.

All Isabella County Outdoor Warning Sirens are tested the 1st Thursday of every month at 3:00 pm. For further information on locations and to hear siren tones click here.