Jefferson County south of St. Louis along the Mississippi River faces moderate tornado risk and serious flooding from the Mississippi and Meramec Rivers. The Meramec River flooding in 2015 and 2016 caused massive damage across Jefferson County communities. The county hosts major lead mining legacy sites creating environmental hazmat emergency considerations alongside natural disaster risk.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// 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 | 5 / 10 Moderate Risk |
| Primary Hazard | Tornado / Flash Flooding |
| Secondary Hazard | Mississippi River Flooding |
| FEMA Flood Zone | Moderate |
| Federally Declared Disasters | 7 |
| Last Major Event | 2015 Flooding |
| Event Frequency | Annual |
// Emergency Operations
| Emergency Mgmt Phone | (636) 797-5000 |
| Emergency Shelters | 10 designated facilities |
| Evacuation Routes | I-55 US-61 MO-30 MO-21 |
// County Profile
| County | Jefferson County MO |
| State | Missouri (MO) |
| Population | 226 |
| Area | 657 sq miles |
| FEMA Region | Moderate |
// 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.