Mill Valley is the first city in the Bay Area to replace its siren-only installations with Genasys emergency warning systems. James Wickham, mayor of Mill Valley, commented on social media, “The City of Mill Valley is excited to announce the installation of new and more powerful emergency sirens to replace our aging system. These sirens are known as “LRADs” – Long Range Acoustic Devices – and they project both siren and voice recordings to alert and inform the community.” (Courtesy of KGO)