Lyon County IA in Iowa faces tornado / missouri river flooding risk across its 588 square mile area. Rock Rapids serves this extreme northwest Iowa corner county. Lyon serves as the county seat and regional emergency coordination hub.
// 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 Risk |
| Primary Hazard | Tornado / Missouri River Flooding |
| Secondary Hazard | Blizzard |
| FEMA Flood Zone | Moderate |
| Federally Declared Disasters | 7 |
| Last Major Event | 2019 Tornado |
| Event Frequency | Annual |
// Emergency Operations
| Emergency Mgmt Phone | (712) 472-8530 |
| Emergency Shelters | 3 designated facilities |
| Evacuation Routes | State and US highways |
// County Profile
| County | Lyon County IA |
| State | Iowa (IA) |
| Population | 12 |
| Area | 588 sq miles |
| FEMA Region | Moderate |
// Other Iowa Counties
Linn County IA
Tornado / Derecho
7/10
High
Dallas County IA
Tornado / Flash Flooding
6/10
Moderate
Madison County IA
Tornado / Flash Flooding
6/10
Moderate
Wright County IA
Tornado / Flash Flooding
6/10
Moderate
Allamakee County IA
Tornado / Flash Flooding
6/10
Moderate
Greene County IA
Tornado / Flash Flooding
6/10
Moderate