Lafourche Parish, Louisiana
Natural disaster risk, federal disaster history and flood insurance facts.
Lafourche Parish, Louisiana has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 91% of US counties. It ranks 12th of 64 parishes in Louisiana. The costliest hazards here are hurricanes, tornadoes and inland flooding. FEMA estimates about $83 million a year in expected losses, or roughly $850 per resident. Since 1965 it has been included in 51 federal disaster or emergency declarations for natural events (33 major disasters). The most recent was in June 2026 (Tropical Storm Arthur). About 1 in 4 homes here carry federal flood insurance (7,963 policies). Since 1978, federal flood insurance has paid about $104 million on 6,203 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Lafourche Parish
- Know your evacuation zone and route before June 1.
- Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Hurricane | 97.7 | $54M | ||
| Tornado | 94.5 | $9M | ||
| Inland flooding | 64.6 | $9M | ||
| Cold wave | 81.4 | $3M | ||
| Heat wave | 92.1 | $3M | ||
| Coastal flooding | 81.8 | $2M | ||
| Drought | 86.4 | $1M | ||
| Lightning | 85.7 | $780K | ||
| Strong wind | 56.6 | $534K | ||
| Hail | 63.5 | $346K | ||
| Earthquake | 55.4 | $296K | ||
| Winter weather | 54.7 | $62K | ||
| Wildfire | 18.9 | $6K | ||
| Ice storm | 1.4 | $484 | ||
| Landslide | 24.9 | $155 |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively high and community resilience is very high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Lafourche Parish. 2020s bar runs to November 2026.
By type
Most recent
Show all 51
Louisiana also had 9 statewide declarations that did not name single counties.
Storm history since 1960
Tornado risk by county ›The National Weather Service has logged 237 storm reports in Lafourche Parish since 1960, with 27 deaths and 197 injuries and about $13.9 million in reported damage. The strongest on record here was an F4 tornado on October 3, 1964.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Oct 3, 1964 | F4 | – | 165 / 22 |
| Sep 10, 1998 | F2 | Cut Off | 6 / 1 |
| Feb 3, 1960 | F2 | – | 8 / 0 |
| Apr 6, 2005 | F2 | Port Fourchon | 2 / 0 |
| Jan 2, 1999 | F1 | Bayou Boeuf | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Sep 11, 2024 | Flash Flood | Chegby | $5M |
| Oct 3, 1964 | Tornado | – | $3M |
| Jun 6, 2001 | Flash Flood | North Portion | $2M |
| Jun 10, 2001 | Flash Flood | North Portion | $1M |
| Sep 10, 1998 | Tornado | Cut Off | $500K |
| Apr 4, 1993 | Thunderstorm Wind | Thibodaux | $500K |
Source: NOAA Storm Events Database, county-based reports through Jun 18, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Hurricanes and tropical storms
Hurricane risk by county ›Since 1855, 40 hurricanes and 32 tropical storms have passed within 65 miles of the center of Lafourche Parish, 30 of them since 1950. The strongest was Hurricane Ida (2021), with top winds near 150 mph about 56 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 29, 2021 | Ida | Category 4, 150 mph | 56 mi |
| Aug 10, 1856 | Unnamed | Category 4, 150 mph | 55 mi |
| Aug 26, 1992 | Andrew | Category 4, 145 mph | 62 mi |
| Aug 29, 2005 | Katrina | Category 4, 130 mph | 62 mi |
| Sep 10, 1965 | Betsy | Category 4, 130 mph | 53 mi |
| Oct 2, 1893 | Unnamed | Category 4, 130 mph | 59 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 11, 2024 | Francine | Category 2, 105 mph | 56 mi |
| Aug 29, 2021 | Ida | Category 4, 150 mph | 56 mi |
| Jun 19, 2021 | Claudette | Tropical storm, 45 mph | 64 mi |
| Oct 28, 2020 | Zeta | Category 3, 115 mph | 24 mi |
| Aug 25, 2020 | Marco | Tropical storm, 35 mph | 62 mi |
| Jun 7, 2020 | Cristobal | Tropical storm, 50 mph | 57 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Lafourche Parish
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Lafourche Parish
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 41,447 housing units.
Compare in Louisiana
All 64 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| East Baton Rouge Parish | Inland flooding | |
| Jefferson Parish | Hurricane | |
| Orleans Parish | Hurricane | |
| St. Tammany Parish | Hurricane | |
| Lafayette Parish | Hurricane | |
| Caddo Parish | Inland flooding | |
| Calcasieu Parish | Hurricane | |
| Ouachita Parish | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Jefferson Parish | 46 | |
| Terrebonne Parish | 50 | |
| St. Charles Parish | 49 | |
| St. John the Baptist Parish | 43 | |
| Assumption Parish | 47 | |
| St. James Parish | 41 |
Common questions about Lafourche Parish
What is the biggest natural hazard in Lafourche Parish?
Hurricane has the highest expected yearly losses in Lafourche Parish, about $53.7 million a year in FEMA's estimate. Tornado is second at $9 million.
How many federal disasters has Lafourche Parish had?
Lafourche Parish has been included in 51 federal disaster or emergency declarations for natural events since 1965, including 33 major disasters. The most recent was Tropical Storm Arthur in June 2026.
Is Lafourche Parish a high-risk place to live?
Its overall rating is Relatively Moderate, 12th highest of 64 in Louisiana. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Lafourche Parish?
Standard home insurance does not cover flooding. About 1 in 4 homes in Lafourche Parish has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Lafourche Parish had?
NOAA records list 42 tornadoes in Lafourche Parish since 1950. The strongest was an F4 tornado on October 3, 1964. The weather service has also logged 37 hail reports and 26 floods here.
How many hurricanes have hit Lafourche Parish?
NOAA's hurricane records show 40 hurricanes and 32 tropical storms passing within 65 miles of the center of Lafourche Parish, including 14 major hurricanes (Category 3 or stronger). The strongest was Hurricane Ida (2021), with winds near 150 mph.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole parish, not a single property, and are not insurance or safety advice. Report a problem.