Law enforcement agencies across Marin County have a new way to alert residents to evacuate during an emergency—a new Hi-Lo siren that has been installed in police vehicles.
The two-tone siren makes a very distinctive and unfamiliar sound and will only be used for immediate evacuation notifications in a large area and during an extreme emergency. Play the video above to get familiar with this siren so you can be better prepared if you ever hear the real thing.
In a small evacuation situation, or when more time is available, officers will continue to use the traditional door-to-door notification method.
— Video from YouTube | Post by Larry Clinton