Sign-up for emergency alerts in San Francisco

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AlertSF is a text-based notification system for San Francisco's residents and visitors. AlertSF will send alerts regarding emergencies disrupting vehicular/pedestrian traffic, watches and warnings for tsunamis, flooding, and Citywide post-disaster information to your registered wireless devices and email accounts. Registrants can also sign up to receive English-language automated information feeds and/or alerts targeted to specific areas of the City.