St. Louis County in eastern Missouri sits in a secondary tornado corridor and faces significant severe thunderstorm risk. The April 2011 tornado struck Lambert-St. Louis International Airport causing major damage. The Missouri and Mississippi Rivers converge near the county creating significant flood risk. New Madrid Seismic Zone earthquake risk adds a secondary but serious threat.
// Preparedness Recommendations
- Identify an interior room or storm shelter.
- Monitor NOAA weather alerts continuously.
- Keep emergency kit accessible at all times.
- Prepare for sudden power outages.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 6 / 10 Moderate Risk |
| Primary Hazard | Tornado / Severe Storm |
| Secondary Hazard | Flash Flooding |
| FEMA Flood Zone | Zone X (Moderate Risk) |
| Federally Declared Disasters | 34 |
| Last Major Event | Tornado (April 2011) |
| Event Frequency | Major event every 5–7 years |
// Emergency Operations
| Emergency Mgmt Phone | (314) 615-8000 |
| Emergency Shelters | 48 designated facilities |
| Evacuation Routes | I-44 West, I-55 South, I-70 East, I-270 North |
// County Profile
| County | St. Louis County MO |
| State | Missouri (MO) |
| Population | 1,004,125 |
| Area | 524 sq miles |
| FEMA Region | Zone X (Moderate Risk) |
// Major Cities
// Cities in This County
// Other Missouri Counties
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.