Lafourche Parish, Louisiana: hazard risk

FEMA rates Lafourche Parish's overall risk Relatively Moderate (score 91.3 of 100, higher than 91% of rated U.S. counties); 3 of its 15 hazards are rated Relatively High or Very High, led by hurricane, tornado, lightning. Its storm record holds 434 events since 1950.

FEMA's rating for each hazard

These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.

FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).

National Risk Index (December 2025), Lafourche Parish, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
HurricaneRelatively High97.7$54M
TornadoRelatively High94.5$9.0M
LightningRelatively High85.7$780K
Heat WaveRelatively Moderate92.1$3.0M
DroughtRelatively Moderate86.4$1.1M
Coastal FloodingRelatively Moderate81.8$2.1M
Cold WaveRelatively Moderate81.4$3.2M
Strong WindRelatively Moderate56.6$534K
Riverine FloodingRelatively Low64.6$8.6M
HailRelatively Low63.5$346K
Winter WeatherRelatively Low54.7$62K
EarthquakeVery Low55.4$296K
LandslideVery Low24.9$155
WildfireVery Low18.9$6K
Ice StormVery Low1.4$484

Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.

What the record holds

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Severe thunderstorm wind1181$2.0M61st of 642336th of 3,080
Hurricanes and tropical storms940$2.9B15th of 64212th of 1,849
Heat430–38th of 64958th of 3,076
Tornadoes4223$31M57th of 641314th of 3,080
Hail370$88662nd of 642681st of 3,080
Floods311$9.7M59th of 642168th of 3,080
Drought220$11M52nd of 642033rd of 3,063
Winter storms130–62nd of 642941st of 3,077
Extreme cold110$38M41st of 642325th of 3,076
Lightning61$339K32nd of 641137th of 3,080
Heavy rain40$40K31st of 641953rd of 3,080
High wind and dust storms40$2K50th of 642882nd of 3,080
Rip currents and high surf11–7th of 64232nd of 2,080

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Lafourche Parish record: every hazard by year and month, the deadliest events and FEMA's declarations.

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