The outdoor weather sirens are intended to alert Rock Island residents of severe weather. These sirens indicate that residents who are outdoors should seek shelter immediately.
The City uses the same siren for both thunderstorms and tornado warnings. If you hear the siren from the warning system, please turn on your weather radio or local news to get updated information on the weather emergency.
Warning System Testing
The City tests the outdoor warning system on the first Tuesday of each month at 10:00 am. The tests last approximately five minutes and ensure that the siren system is functioning properly. If there is inclement weather, the test will be postponed to make sure that there is no confusion between the test and an actual weather emergency.
Warning sirens are located at the following Rock Island intersections: