Moderate Risk New York  ·  Tornado / Flash Flooding

Onondaga County NY

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

5/ 10
Threat Score
Population
480
Area
806
sq miles
Primary Hazard
Tornado / Flash Flooding
FEMA Disasters
5
federally declared

Onondaga County anchored by Syracuse in central New York faces moderate tornado risk and flooding from Onondaga Creek and Seneca River tributaries. Syracuse is a regional hub for central New York emergency coordination and hosts major healthcare and university facilities. The county is within 50 miles of FitzPatrick and Nine Mile Point nuclear plants on Lake Ontario creating nuclear ingestion zone considerations. Syracuse University with 22000 students creates institutional 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 Nuclear Ingestion Zone
FEMA Flood Zone Moderate
Federally Declared Disasters 5
Last Major Event 2019 Flooding
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (315) 435-2070
Emergency Shelters 14 designated facilities
Evacuation Routes I-81 I-690 US-11 NY-5

// County Profile

County Onondaga County NY
State New York (NY)
Population 480
Area 806 sq miles
FEMA Region Moderate

// Major Cities

Syracuse NY

// Cities in This County

// Other New York Counties

// Nearby Infrastructure Risks

Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.

Onondaga Lake Superfund Site NY
Superfund Site  ·  Syracuse, NY  ·  Honeywell / EPA  ·  5-mi risk zone
8/10 High

Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.