The Outdoor Warning System (OWS) consists of 178 sirens strategically placed throughout the City of Dallas. OEM constantly monitors the system for functionality and coverage. The OWS is tested on the first Wednesday of every month at noon, weather permitting.

The Outdoor Warning System will sound sirens that are not meant to be heard indoors, they are designed to alert anyone outside to head to safety indoors. Once inside and safe, turn on your NOAA weather radio, TV, radio, or other news source for more information and instructions.

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