City Emergency Management Agency (CEMA)

The City of St. Louis Emergency Management Agency (CEMA), a division of the Department of Public Safety, maintains an ongoing program of prevention, mitigation, preparedness, response and recovery

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Avoid Injury During Tornado Cleanup (MU Extension)

Dense Urban Terrain Exercise - Day Three (July 17, 2024)

Dense Urban Terrain Exercise - Day Two (July 16, 2024)

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Services

Report a Problem with the Outdoor Warning Sirens Report a problem with the outdoor warning sirens during testing, or sirens not being heard at your location during a tornado warning. Service Page
Report Hazardous Chemical Inventory Information on submitting the Missouri Tier II form for hazardous chemicals and extremely hazardous substances to local organizations Service Page
Sign Up for Emergency Alerts via NotifySTL Receive alerts for severe weather, critical incidents, service disruptions, and evacuations of buildings or neighborhoods. Service Page

News and Announcements

Mayor Spencer Declares State of Emergency, Giving City Additional Tools to Tackle Winter Storm
The declaration provides additional tools as the City braces for a dangerous winter storm.
Press release | Office of the Mayor,City Emergency Management Agency,Street Division,Homeless Services,Recovery Office | 01/23/2026
600 Emergency Shelter Beds Opening in St. Louis for Severe Cold This Weekend, Street Department Prepares for Snow
DHS will move to the highest Code Blue activation level on Friday, bringing a record number of emergency shelter beds online.
Press release | Office of the Mayor,City Emergency Management Agency,Street Division,Homeless Services,Recovery Office | 01/22/2026
City of St. Louis Outlines Preparations for Extreme Cold Weather Event
Below-zero wind chills are forecast for Friday and into the weekend. A Winter Storm Watch is in effect from late Friday through Sunday morning.
Press release | City Emergency Management Agency,Department of Streets,Department of Health,Department of Human Services,Department of Public Utilities,Fire Department,Water Division | 01/21/2026