DisasterAWARE
9
Extreme

flood Flood Risk in Phoenix, AZ

Risk Level: Extreme — Score 9/10

FEMA: 9Historical: 10

Live Flood alert status near Phoenix

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Live flood activity around Phoenix — refreshed throughout the day.

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Key Risk Factors

  • FEMA rates Phoenix's county as Very High risk for this hazard
  • Estimated annual loss of $1,120M from this hazard type
  • Extensive history of significant events in this area
  • High recent activity — multiple events in the last 12 months
  • Average annual frequency: 8.5 events per year

Peak season: March-September

Last significant event: Flood - Phoenix--Mesa, AZ Region, United States (2022-09-12)

Highest Risk Cities for Floods

1
New York, NY
FEMA: 9Historical: 10
2
Los Angeles, CA
FEMA: 9Historical: 10
3
Chicago, IL
FEMA: 9Historical: 10
4
Houston, TX
FEMA: 9Historical: 10
5
Phoenix, AZ
FEMA: 9Historical: 10
6
Philadelphia, PA
FEMA: 9Historical: 10
7
San Antonio, TX
FEMA: 9Historical: 10
8
San Diego, CA
FEMA: 9Historical: 10
9
Dallas, TX
FEMA: 9Historical: 10
10
San Jose, CA
FEMA: 9Historical: 10

How Phoenix Compares

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Notable Flood Events Near Phoenix

DisasterAWARE's historical archive records 5 notable flood events near Phoenix, ranked below by impact. The most impactful: Flood - Phoenix--Mesa, AZ Region, United States (September 2022).

Flood - Phoenix--Mesa, AZ Region, United States

September 11, 2022 — WARNING

Impact data not available

Flood - Phoenix--Mesa, AZ Region, United States

August 18, 2022 — WARNING

Impact data not available

Flood - Phoenix--Mesa, AZ Region, United States

August 12, 2022 — WARNING

Impact data not available

Flood - Phoenix--Mesa, AZ Region, United States

July 13, 2021 — WARNING

Impact data not available

Flood - Phoenix, Arizona, United States

August 19, 2014 — WARNING

Impact data not available

Flood Preparedness Tips

  • 1.Know if your property is in a flood zone — check FEMA maps
  • 2.Consider flood insurance even if not in a high-risk zone
  • 3.Never drive through flooded roadways — Turn Around, Don’t Drown
  • 4.Move valuables and important documents to upper floors
  • 5.Install sump pumps and check valves in plumbing

Related Pages

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Earthquake Risk in Phoenix
Score: 5/10
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Tornado Risk in Phoenix
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winter-storm
Winter Storm Risk in Phoenix
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landslide
Landslide Risk in Phoenix
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extreme-heat
Extreme Heat Risk in Phoenix
Score: 9/10
drought
Drought Risk in Phoenix
Score: 7/10
high-wind
High Wind Risk in Phoenix
Score: 9/10
tsunami
Tsunami Risk in Phoenix
Score: 0/10
flood
Flood Risk in Mesa, AZ
Score: 9/10
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Flood Risk in Tucson, AZ
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Flood Risk in Las Vegas, NV
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How this data is built

Phoenix, AZ flood risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live flood monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.

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