Moderate Risk Texas  ·  Tornado / Flash Flooding

Johnson County TX

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

6/ 10
Threat Score
Population
196
Area
726
sq miles
Primary Hazard
Tornado / Flash Flooding
FEMA Disasters
6
federally declared

Johnson County south of Fort Worth is within the 50-mile ingestion zone of Comanche Peak Nuclear Plant and faces moderate tornado risk in the Texas tornado corridor. The Brazos River creates flooding risk. Cleburne serves as the county seat. The county has experienced tornado events and sits in a moderate severe weather zone on the southern DFW metro edge. Growth pressure from the Fort Worth metro is expanding residential development into the county.

// 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 6 / 10    Moderate Risk
Primary Hazard Tornado / Flash Flooding
Secondary Hazard Nuclear Proximity
FEMA Flood Zone Moderate
Federally Declared Disasters 6
Last Major Event 2020 Tornado
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (817) 556-6300
Emergency Shelters 8 designated facilities
Evacuation Routes I-35W US-67 TX-174 TX-171

// County Profile

County Johnson County TX
State Texas (TX)
Population 196
Area 726 sq miles
FEMA Region Moderate

// Other Texas Counties