San Francisco Still Lacks Outdoor Public Warning System, Grand Jury Says

When you grew up hearing the low‑pulsing wail of a siren every Tuesday at noon, you probably assumed it was a comforting reminder that the city was prepared for the worst. In San Francisco, that rhythm stopped in December 2019, and the once‑busy network of 119 outdoor warning horns has basically become a rusted relic.

The latest Civil Grand Jury report reads like a gentle (and sometimes frustrated) nudge to the mayor’s office and the Board of Supervisors. It points out that city leaders never really decided whether to pour money into a $20 million upgrade—now likely even costlier—or simply yank the whole thing down. “The ambivalence itself is a problem,” says jury member Rob Chansler, and you can hear the exasperation in his voice.

Why the hesitation? Back in 2019, a hacking scare in Dallas—where every one of that city’s 156 sirens blared for a solid 90 minutes—prompted San Francisco officials to shut off its own system over cybersecurity worries. Former Mayor London Breed warned that “people who had access could use it for the wrong reasons.” The city promised upgrades, and Emergency Management head Mary Ellen Carroll hinted in August 2023 that work would be well underway within six months.

Fast forward to today, and the jury says little has moved. Some sirens have been stripped of their horns because rust and salty ocean air made the metal dangerous—one inspection even revealed a horn dangling precariously on Ocean Beach, a clear safety hazard. The report notes that without regular maintenance, corrosion and decay have set in, making the system a literal eyesore.

Beyond the physical decay, the report asks a bigger question: do those old‑school wails even make sense in 2026? The sirens were designed during the Cold War to warn of air‑raid attacks, yet modern emergencies—wildfires, earthquakes, tsunamis—need more specific information. “Everyone now carries a phone,” Chansler observes, “so a generic blast doesn’t tell you if it’s a tsunami or a fire.”

That said, not every resident can rely on a smartphone. Supervisor Alan Wong, whose district includes the Sunset neighborhood and a designated tsunami‑evacuation zone, argues that sirens still add a crucial “extra layer of protection.” In January he introduced legislation urging the city to prioritize restoring the system, pointing out that coastal communities need a loud, obvious cue when waves surge.

Meanwhile, the city’s digital AlertSF platform draws its own set of complaints. Jury members highlighted alerts that say things like “avoid the area” without clarifying how far to stay back, for how long, or whether the danger is still present. “Is it a block? A few minutes? A whole day?” they asked. Follow‑up messages often simply announce that “the problem was resolved,” leaving citizens to wonder if it’s safe to go back.

In short, the Civil Grand Jury concludes that San Francisco lacks a cohesive, transparent emergency‑notification plan. It urges the mayor and supervisors to choose a path—either invest in a modernized, secure siren network or officially retire the aging equipment and replace it with a clear, reliable digital strategy that speaks to all residents, regardless of whether they have a phone in their pocket.