Sioux City at the junction of Iowa, Nebraska, and South Dakota sits on the Missouri River in a high tornado frequency zone. The 2019 Missouri River flooding caused catastrophic damage across the tri-state region. The city's tri-state border position means severe weather often approaches from multiple directions simultaneously. Sioux City serves as a major regional hub for agricultural northwest Iowa emergency coordination.
// 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 | Tornado / Missouri River Flooding |
| FEMA Flood Zone | High |
| County FEMA Declarations | 8 |
| Last Major Event | 2019 Missouri River Flooding |
// Emergency Information
| Emergency Phone | (712) 279-6100 |
| Evacuation Routes | I-29 US-20 IA-140 IA-175 |
| Elevation | 1126 ft above sea level |
// County Risk Profile
Woodbury County IA
Iowa · Tornado / Missouri River Flooding
View full county emergency preparedness profile →
6/10
Moderate Risk