Moderate Risk Ohio  ·  Tornado / Flash Flooding

Warren County OH

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  LAST UPDATED: Mar 2026

5/ 10
Threat Score
Population
246
Area
406
sq miles
Primary Hazard
Tornado / Flash Flooding
FEMA Disasters
5
federally declared

Warren County north of Cincinnati has been one of the fastest growing counties in Ohio for two decades. The Little Miami River creates flooding risk through the county and is a designated National Scenic River. The county faces moderate tornado risk and was impacted by the Memorial Day 2019 tornado outbreak. Mason and Lebanon are major suburban communities. Kings Island amusement park creates massive seasonal event-day emergency planning requirements.

// 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.

// Risk Intelligence

Threat Score 5 / 10    Moderate Risk
Primary Hazard Tornado / Flash Flooding
Secondary Hazard Severe Storm
FEMA Flood Zone Moderate
Federally Declared Disasters 5
Last Major Event 2019 Tornado
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (513) 695-1220
Emergency Shelters 8 designated facilities
Evacuation Routes I-75 I-71 OH-73 US-42

// County Profile

County Warren County OH
State Ohio (OH)
Population 246
Area 406 sq miles
FEMA Region Moderate

// Other Ohio Counties