OFallon faces severe storms, tornado risk, and heavy rainfall flooding in the fast growing western St. Louis metro.
// 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 | 6 / 10 Moderate |
| Primary Hazard | Severe Storm / Tornado / Flooding |
| FEMA Flood Zone | High |
| County FEMA Declarations | 8 |
| Last Major Event | 2019 Flooding |
// Emergency Information
| Emergency Phone | 636-379-5500 |
| Evacuation Routes | I-70 I-64 US-40 MO-94 |
| Elevation | 575 ft above sea level |
// County Risk Profile
St. Charles County MO
Missouri · Tornado / Flash Flooding
View full county emergency preparedness profile →
6/10
Moderate Risk