Enter any address in Lafourche Parish, Louisiana to see its FEMA flood zone
Storm surge/tide events and tropical storms have been the most frequent flood-related hazards in Lafourche Parish County over the last 30 years. Recent flash flooding events in January 2024, driven by abundant atmospheric moisture, illustrate the potential for significant rainfall.
National Flood Insurance Program (NFIP) data shows that Zone A, typically areas with base flood elevations (BFE) but without wave protection, has the highest number of claims. Zone V, which accounts for coastal areas with high-velocity wave action, has the fewest claims but the highest average water depth. Properties in Zone A and Zone V, as well as those in areas with unknown flood risk, should pay particular attention to flood potential.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
63 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Lafourche Parish, Louisiana has recorded 104 flood-related events since 1996 according to NOAA's Storm Events Database, including 21 flash floods and 4 river or area floods. The county has received 53 federal disaster declarations, 12 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Tropical Storm Francine | Hurricane | Sep 10, 2024 |
| Hurricane Francine | Hurricane | Sep 9, 2024 |
| Tropical Storm Nicholas | Coastal Storm | Sep 12, 2021 |
| Hurricane Ida | Hurricane | Aug 26, 2021 |
| Tropical Storm Ida | Hurricane | Aug 26, 2021 |
| Severe Storms, Tornadoes, And Flooding | Flood | May 17, 2021 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Hurricane Zeta | Hurricane | Oct 26, 2020 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jan 24, 2024 | 20.00K |
| Flash Flood | Jan 24, 2024 | 0.00K |
| Storm Surge/Tide | Jun 16, 2024 | 0.00K |
| Flash Flood | Sep 11, 2024 | 4.50M |
| Hurricane (Typhoon) | Sep 11, 2024 | 10.00M |
| Storm Surge/Tide | Sep 11, 2024 | 0.00K |
| Hurricane (Typhoon) | Aug 29, 2021 | 750.00M |
| Storm Surge/Tide | Aug 29, 2021 | 500.00M |
| Storm Surge/Tide | Aug 29, 2021 | 750.00M |
| Coastal Flood | May 19, 2021 | 0.00K |
Flash Flood — Jan 24, 2024
For the second time in January, near record atmospheric levels of moisture, for January, was in place across southern Mississippi and southeast Louisiana. Low level convergence aided in the formation of a weak stalled frontal boundary, which became the focus for widespread showers and thunderstorms. Strong diffluence aloft from an approaching upper level jet enhanced storms that did develop. Th...
Storm Surge/Tide — Jun 16, 2024
As a surface ridge nearby shifted off to the northeast during the 3rd weekend of June, light and variable winds became onshore and more steady state. By June 16th, the surface ridge shifted offshore into the Atlantic Ocean and a surface low pressure was developing as it crossed the Yucatan Peninsula. It was at this point that east to southeast winds increased to 15-20 knots across local coastal...
Flash Flood — Sep 11, 2024
Hurricane Francine formed as a tropical storm in the Gulf of Mexico on September 9, 2024, and intensified into a Category 2 hurricane before making landfall near Houma, Louisiana, on the morning of September 11. With sustained winds of 100 mph and gusts peaking at 105 mph, Francine brought widespread damage to southeastern Louisiana and southern Mississippi. A storm surge of 6-9 feet inundated ...
Hurricane (Typhoon) — Sep 11, 2024
Hurricane Francine formed as a tropical storm in the Gulf of Mexico on September 9, 2024, and intensified into a Category 2 hurricane before making landfall near Houma, Louisiana, on the morning of September 11. With sustained winds of 100 mph and gusts peaking at 105 mph, Francine brought widespread damage to southeastern Louisiana and southern Mississippi. A storm surge of 6-9 feet inundated ...
Storm Surge/Tide — Sep 11, 2024
Hurricane Francine formed as a tropical storm in the Gulf of Mexico on September 9, 2024, and intensified into a Category 2 hurricane before making landfall near Houma, Louisiana, on the morning of September 11. With sustained winds of 100 mph and gusts peaking at 105 mph, Francine brought widespread damage to southeastern Louisiana and southern Mississippi. A storm surge of 6-9 feet inundated ...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Lafourche Parish, Louisiana:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Lafourche Parish, Louisiana that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.