Storm Warning System
Like all outdoor warning sirens, our sirens are meant to be heard by people that may be outdoors and unsheltered. The sirens are not designed to be heard by people that are indoors and therefore sheltered.
In the event that you hear an outdoor warning siren activate, you should seek shelter immediately. The best shelter would be in the basement of a building away from windows or other openings. You should turn on your radio or television to obtain additional information and instructions.
The outdoor warning sirens are tested monthly, weather permitting, on the first Monday of the month at 11:00 AM. There will be a one-minute tone followed by a voice announcement. Because the outdoor warning sirens are designed to be heard outside, we also recommend the use of weather alert radios in homes and businesses.
To report a siren that does not sound during the monthly test or to report an unscheduled siren activation please call the ECC Customer Service Line at 314 615-9551 or send a detailed email to firstname.lastname@example.org including your name, address and phone number.
To view outdoor warning sirens locations click here.What should I do when I hear the sirens?
To learn more about county emergency management operations, please visit St. Louis County Government Emergency Management.