Every Tuesday at noon the Department of Emergency Management tests the City’s Outdoor Public Warning System by running a siren for 15 seconds. In the event of an emergency or disaster the siren would be repeated, and followed by voice announcements.

For more information about what to do if you hear sirens other than Tuesday visit the Department of Emergency Management's website


Sign up for our weekly newsletter and join the conversation on Facebook.


Check out some of our newest Blogs:

     Universal Internet Access for All San Franciscans

     Why is San Francisco So Dirty?

     SFPark – The iPhone App for Smart Parking in San Francisco

     Food Truck Rodeo Review – Off the Grid