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1. Where are the LRAD sirens?

The LRAD sirens are located in Cascade, Blithedale and Warner Canyons, plus Scott Valley and atop Mill Valley City Hall.

2. What will they sound like?

Listen to the monthly test message.

3. When will you use them?

In the event of a disaster or large-scale emergency, one or all of the sirens may be activated to alert residents to tune into local media (City website, social media, radio and television stations) for further information and instructions.