High Risk Arizona  ·  Extreme Heat / Flash Flooding

Phoenix AZ

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  ARIZONA

7 / 10
Threat Score
Population
1,608,139
Elevation
1107
feet above sea level
Primary Hazard
Extreme Heat / Flash Flooding
County FEMA Disasters
38
federally declared

Phoenix is the hottest major city in the United States and faces compounding disaster risks from extreme heat and monsoon flash flooding. Summer temperatures regularly exceed 115°F and Phoenix holds the record for most consecutive days above 110°F. The monsoon season brings violent thunderstorms that cause flash flooding across the desert terrain with little warning. The Salt River and numerous desert washes can transform from dry sand to raging torrents within minutes.

// 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 Score7 / 10   High
Primary HazardExtreme Heat / Flash Flooding
FEMA Flood ZoneZone X (Heat Risk)
County FEMA Declarations38
Last Major EventFlash Flood (July 2021)

// Emergency Information

Emergency Phone (602) 262-7811
Evacuation RoutesI-10 East, I-17 North, I-10 West, US-60 East
Elevation1107 ft above sea level

// County Risk Profile

Maricopa County AZ
Arizona · Extreme Heat / Flash Flooding
View full county emergency preparedness profile →
7/10
High Risk

// Other Cities in Maricopa County AZ

// Nearby Infrastructure Risks

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

💧
Central Arizona Project Canal AZ
Water Treatment  ·  Phoenix, AZ  ·  Central Arizona Project / Bureau of Reclamation  ·  10-mi risk zone
9/10 Critical
📡
TSMC Arizona Semiconductor Fab
Telecom / Internet  ·  Phoenix, AZ  ·  Taiwan Semiconductor Manufacturing Company  ·  5-mi risk zone
9/10 Critical
TSMC Phoenix AZ Fab
Power Plant  ·  Phoenix, AZ  ·  Taiwan Semiconductor Manufacturing Company  ·  5-mi risk zone
9/10 High
Palo Verde Nuclear Generating Station AZ
Nuclear Power Plant  ·  Tonopah  ·  Arizona Public Service  ·  10-mi risk zone
8/10 High
Arizona Public Service Transmission Cluster AZ
Power Plant  ·  Phoenix, AZ  ·  Arizona Public Service  ·  5-mi risk zone
8/10 High
🌊
Glen Canyon Dam AZ
Major Dam  ·  Page  ·  Bureau of Reclamation  ·  100-mi risk zone
8/10 High
Kinder Morgan El Paso Natural Gas Pipeline AZ
Chemical Facility  ·  Phoenix, AZ  ·  Kinder Morgan  ·  10-mi risk zone
8/10 High
💧
Phoenix Water Services AZ
Water Treatment  ·  Phoenix, AZ  ·  City of Phoenix  ·  25-mi risk zone
8/10 High
🏥
Banner University Medical Center Phoenix AZ
Major Hospital  ·  Phoenix, AZ  ·  Banner Health  ·  25-mi risk zone
8/10 High
📡
Phoenix AZ Data Center Hub
Telecom / Internet  ·  Phoenix, AZ  ·  CyrusOne / Iron Mountain / Various  ·  2-mi risk zone
7/10 High
🏟
Phoenix Sky Harbor International Airport AZ
Stadium / Arena  ·  Phoenix, AZ  ·  City of Phoenix  ·  10-mi risk zone
7/10 High
🏥
Valleywise Health Medical Center Phoenix AZ
Major Hospital  ·  Phoenix, AZ  ·  Valleywise Health  ·  25-mi risk zone
7/10 High
Honeywell Aerospace Phoenix AZ
Military Installation  ·  Phoenix, AZ  ·  Honeywell  ·  5-mi risk zone
7/10 High
🏟
Chase Field Phoenix AZ
Stadium / Arena  ·  Phoenix, AZ  ·  Arizona Diamondbacks / MLB  ·  2-mi risk zone
7/10 High
🏟
Footprint Center Phoenix AZ
Stadium / Arena  ·  Phoenix, AZ  ·  Phoenix Suns Phoenix Mercury / NBA WNBA  ·  2-mi risk zone
6/10 Moderate

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