Denver to Conduct Citywide Emergency Siren Test on May 14
Denver residents may hear a loud, unfamiliar wail at 11 a.m. on Tuesday, May 14—but there’s no need for alarm. The City of Denver will conduct a routine test of its outdoor emergency siren system, which includes 86 sirens strategically placed across the metro area.
These sirens, installed between 2012 and 2014, are designed to alert the public in the event of major emergencies such as tornado warnings, large-scale fires, flash flooding, or severe hailstorms. While they aren’t activated often—a positive sign that large-scale disasters are rare—they remain a vital tool in the city’s emergency response infrastructure.
If you hear sirens outside of scheduled test times, Denver emergency officials advise taking immediate action: seek shelter, stay indoors, and monitor local news or the Denver Office of Emergency Management website for real-time updates. Importantly, there is no separate “all-clear” siren, so residents are encouraged to rely on official sources for the latest information.
This upcoming test serves as a reminder for everyone in Denver to remain prepared and know how to respond in case of an actual emergency.
