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Emergency Sirens Test - 11:30 a.m. March 12

Emergency Sirens Test - 11:30 a.m. March 12
Posted on 03/06/2024
An emergency warning siren sits on a post above an Aurora street

The city of Aurora Office of Emergency Management will conduct an audible test of the city’s emergency outdoor warning sirens at 11:30 a.m. Tuesday, March 12. The test will include more than 50 sirens throughout Aurora. If you are outdoors, you should hear a 3-minute wailing sound. There will be no voice heard during the test, and the sirens may not be audible indoors.

The city conducts audible tests of the sirens twice a year (in March and November), and silent testing weekly year-round. The next audible test is scheduled for 11:30 a.m. Tuesday, Nov. 12.

The purpose of these all-hazards sirens is to provide notice regarding an emergency situation, such as a tornado warning or hazardous-material spill. There is no “all-clear” tone that sounds when the situation has been resolved or mitigated. Instead, any tone coming from the sirens should be viewed as a call to immediately take shelter and seek additional information via weather radio, local TV and radio, or the city’s Facebook ( and X/Twitter (@AuroraGov) accounts. In the event of an emergency, both residents and businesses should use the information available to make a determination as to when the threat has passed. It should be noted that sirens will be re-activated in the event a new warning or a new threat arises.

To receive emergency alerts directly on your phone and/or email, sign up for CodeRED, the city's emergency alert provider. Visit to find out more.

For more information about the outdoor warning sirens and to hear an example of the siren wail, go to

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