Outdoor Warning Sirens

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Mundelein’s Outdoor Warning Sirens—An Overview

When dangerous storms travel through the Mundelein area, they can cause extensive damage.  Because of the unpredictability and sudden appearance of tornadoes, it may not be possible to provide advance warning; if you hear the outdoor warning siren, immediately seek shelter, and tune in to a local radio or television station.

Mundelein has eight outdoor warning sirens strategically located throughout the village. Outdoor warning sirens are designed to alert people that are outdoors to seek shelter. They are not designed to alert people that are already indoors.

Siren activation is made by personnel at the dispatch center.

If possible, please try to avoid calling the police department or the fire department about the sirens.  This will be an extremely busy time for them, and they will not be able to tell you little more than you already know or can learn through a weather radio, local radio, and television stations.

For complete information, visit Ready Illinois.

Frequently Asked Questions about Outdoor Warning Sirens

  1. What does it mean when I hear the outdoor warning sirens?

    It means that something life-threatening is happening and you should go indoors and get more information. 

  2. What should I do when I hear the outdoor warning sirens?

    When the sirens are heard, go inside and tune to local media to get more information.

  3. Why can’t I hear the outdoor warning sirens in my house?

    The sirens are an outdoor warning system designed only to alert those who are outside that something dangerous is approaching.

  4. How can I get alerts when I’m at work or inside my house?

    For alerts indoors, every home or business should have a NOAA Weather Radio All-Hazards.  The NOAA Weather Radio is like a smoke detector for severe weather.  It can wake you up when a

    warning is issued for your area so that you can take appropriate action.  There are also smart phone Apps that can provide similar information.

  5. Why don’t the outdoor warning sirens sound an all-clear signal?

    People should be indoors and monitoring local media for updates on the storm.

  6. Will the outdoor warning sirens warn me of every dangerous storm?

    The safest approach is to be proactive and use all of the information available to protect yourself and your family from threatening weather. Nothing can replace common sense. If a storm is approaching, the lightning alone is a threat. Sirens are only one part of a warning system that includes preparation, NOAA Weather Radio, and local media.

  7. When are the tornado sirens tested?

The Outdoor Warning Sirens are tested at 10 a.m. on the first Tuesday of the month.