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FloodLA

Louisiana Flood Hazard Profile

Climate-Adjusted Hazard Data · Model Version 1.0

Overview

Louisiana faces compound flood hazard from Mississippi River flooding, Gulf Coast storm surge, and intense tropical rainfall. The state has more properties with repetitive NFIP flood losses than nearly any other state. FEMA flood zone mapping shows extensive AE and VE zones across the Louisiana coast and Mississippi River floodplain.

Notable Historical Events

12016 Louisiana Floods — 60,000+ homes damaged, unnamed storm (FEMA DR-4277)
22021 Hurricane Ida inland flooding — catastrophic flash flooding in New Orleans metro
32011 Mississippi River Flood — record river stages, Morganza Floodway activated

Hazard Scoring Approach

CivilSense computes a Climate-Adjusted Hazard Score (0–10) for flood hazard at any US address. The score is composed of weighted sub-components derived from federal data sources and peer-reviewed research. All score components are transparent and returned in API responses.

These are hazard scores — physical intensity likelihood only. They do not include property exposure or vulnerability data. We never call a hazard score a risk score. See the full methodology for scoring details.

Analyze Your Address

Enter any Louisiana address to see location-specific flood hazard scoring with full methodology transparency.

Open Live Map — Louisiana

Data Sources

FEMA National Flood Hazard Layerwww.fema.gov
NOAA AHPS River Gaugeswater.weather.gov
USACE New Orleans Districtwww.mvn.usace.army.mil

Related

Louisiana HurricaneFlood Methodology

Climate-Adjusted Hazard Score — derived from peer-reviewed sources listed above. Property exposure data not included. Not a substitute for professional actuarial assessment. For situational awareness only — not for emergency response.

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For situational awareness only — not for emergency response.

Data: USGS · NOAA · FEMA · NASA FIRMS · GDELT