DisasterAWARE
9
Extreme

flood Flood Risk in Houston, TX

Risk Level: Extreme — Score 9/10

FEMA: 9Historical: 10

Live Flood alert status near Houston

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Live flood activity around Houston — refreshed throughout the day.

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Key Risk Factors

  • FEMA rates Houston's county as Very High risk for this hazard
  • Estimated annual loss of $1,122M 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: 5.1 events per year

Peak season: March-September

Last significant event: Flood - Houston, TX Region, United States (2021-08-16)

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 Houston Compares

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Notable Flood Events Near Houston

DisasterAWARE's historical archive records 5 notable flood events near Houston, ranked below by impact. The most impactful: Flood - Houston, TX Region, United States (August 2021).

Flood - Houston, TX Region, United States

August 15, 2021 — WARNING

Impact data not available

Flood - Houston, TX Region, United States

August 15, 2021 — WARNING

Impact data not available

Floods - Houston, Texas, United States (Tropical Storm Imelda)

September 20, 2019 — WARNING

Impact data not available

Flood - Texas (Houston), United States

July 11, 2012 — WARNING

Impact data not available

Floods -Texas (Houston), United States

January 8, 2012 — 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 Houston
Score: 5/10
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Wildfire Risk in Houston
Score: 3/10
hurricane
Hurricane Risk in Houston
Score: 9/10
tornado
Tornado Risk in Houston
Score: 9/10
winter-storm
Winter Storm Risk in Houston
Score: 9/10
landslide
Landslide Risk in Houston
Score: 5/10
extreme-heat
Extreme Heat Risk in Houston
Score: 9/10
drought
Drought Risk in Houston
Score: 5/10
high-wind
High Wind Risk in Houston
Score: 9/10
tsunami
Tsunami Risk in Houston
Score: 0/10
flood
Flood Risk in Austin, TX
Score: 7/10
flood
Flood Risk in San Antonio, TX
Score: 9/10
flood
Flood Risk in Dallas, TX
Score: 9/10

How this data is built

Houston, TX 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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