Office of Emergency Management and Homeland Security

Denver's Updated Siren System Might Have Some Dead SpotsIt's a sound that gets people's attention, and now it's blaring better than before. On Wednesday the city of Denver tested its improved emergency warning system to make sure it's ready in case of tornadoes, flooding and other dangers.
Denver To Test New And Updated Emergency Sirens On WednesdayResidents in and around Denver shouldn't be surprised if they hear warning sirens on Wednesday.

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