Audible Siren Testing – 7/11/2024

Following multiple reports of outdoor warning system sirens not sounding during the monthly test on July 1, 2024, the City of St. Louis Emergency Management Agency (CEMA) to conduct additional testing of the siren system on Thursday, July 11, 2024, between 8:00 a.m. and 12:00 p.m. and will notify residents that it is just a test.

Sirens are usually tested on the first Monday of each month, weather permitting. The monthly test may be canceled on the morning of the first Monday if there is potential for severe weather or if weather conditions could cause confusion in the community.

β€œIt is important to remember that these sirens are intended to be heard outdoors. While it may be possible to hear them inside a home or building, the intent of the warning sirens is to alert individuals to seek shelter from an incoming danger, said Sarah Russell, commissioner for the City of St. Louis Emergency Management Agency.

The current outdoor warning system is 25 years old. In April, CEMA announced its plan to update and improve the city’s system. $3.9 million has been allocated to a replacement system and ongoing maintenance. The Board of Public Service issued a request for qualifications this spring and is going through the city’s process to select a vendor to plan, implement and install the new outdoor warning system.

City of St. Louis Emergency Management Agency works to ensure the safety of the public and provides multiple avenues to receive information about hazards to the city of St. Louis. Residents are encouraged to register and keep information up to date in the city’s NotifySTL alert system. NotifySTL can send alerts to your phone via text, phone call, or email notifications to help you prepare. Launched in 2019, NotifySTL lets you subscribe to the notifications you care about based on your location and interests. The information you provide is protected and will not be used for any other purpose. To sign up for the notification system, visit

City dwellers should also consider investing in a battery-powered National Oceanic and Atmospheric Administration (NOAA) Weather Radio to stay updated on changing weather conditions in the event of potential power outages.

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