City of St. Louis Strengthens Severe Weather Preparedness Following May 2025 Tornado

As the severe weather season begins, the City of St. Louis is entering this spring significantly better prepared than it was one year ago, following substantial investments, structural reforms and ongoing improvements to its emergency management systems in the wake of the May 16, 2025, tornado.

“Last year exposed serious weaknesses in how we prepared for and responded to emergencies,” said Mayor Cara Spencer. “We did not shy away from those findings — we acted on them. Today, St. Louis is operating under a unified, coordinated system with stronger partnerships, better tools and clearer protocols. While there is more work to do, we are unquestionably more prepared to protect our residents.”

Major Improvements Since May 2025

• Unified Command and Coordination
  The City now operates under a National Incident Management System (NIMS) and Incident Command System (ICS)-compliant unified command framework, formalized through Executive Order 93. Over the past four months, City leadership has conducted approximately 50 unified command coordination calls addressing winter storms, Code Blue activations and severe weather events.
  
  This system was recently tested during severe weather on March 14, 2026, marking a major milestone in the City’s progress. For the first time, City leaders received tailored meteorological briefings and coordinated response actions in real time.

• National Weather Service Partnership
  A formal partnership with the National Weather Service now provides twice-weekly, decision-ready weather intelligence briefings tailored specifically to City operations, NWS being embedded at CEMA operations two times a week, and open line of 24/7 communication between the two agencies. This real-time coordination ensures City leadership can make informed decisions quickly during developing weather threats.

• Regional and Mutual Aid Partnerships
  The City has strengthened partnerships with state agencies, regional emergency management partners and nonprofit organizations, including the American Red Cross. These partnerships enhance the City’s ability to prepare for, respond to, and recover from major emergencies.

• Modernized Outdoor Warning Siren System
  The City’s outdoor warning siren system has undergone extensive upgrades, including the addition of automatic, GIS-triggered activation. This eliminates reliance on manual activation and ensures faster public alerts.

“As of today, sirens are completely automated to trigger when a tornado warning is issued for St. Louis,” said Fire Chief Dennis Jenkerson. “What failed us last year is now being rebuilt with redundancy, automation and accountability. These upgrades are critical to ensuring timely warnings that save lives.”

Siren enhancements include:

• Automatic activation tied to National Weather Service alerts
• New solar panels, batteries and control systems
• Transition to digital communication infrastructure
• Portable activation devices for emergency leadership
• A “ghost tower” early detection system for faster storm tracking

Despite substantial progress, City leaders acknowledge that critical work remains, including the continued recruitment to fill key positions in CEMA, updating the Emergency Operations Plan from 2003, continued strengthening of public works mutual aid agreements and development of new contracts for debris removal, shelter and cost recovery to improve speed and efficiency. 

“Emergency management is not a one-time fix—it’s an ongoing commitment,” said CEMA Commissioner Gregg Favre. “We’ve built a strong foundation with unified command, better intelligence for decision makers and upgraded systems. Now we are focused on staffing, planning and expanding our capabilities to meet national standards and ensure we are ready for what comes next.”

City officials emphasize that while challenges remain, the difference between May 2025 and today is clear.

“Earlier this spring, when severe weather hit and prompted a tornado warning, we saw the system working; coordinated leadership, real-time information and automatic alerts,” Mayor Spencer said. “Those capabilities did not exist a year ago. That progress matters, and it will continue.”

Residents are encouraged to stay informed, sign up for emergency alerts through Notify STL and review personal preparedness plans as the severe weather season continues.