Hazard Plain Automated baseline

Vermilion Parish, LA

Risk-assessment baseline packet

County FIPS:
22113
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: No approved plan on record.

Update: FEMA tracker shows a plan awaiting revisions.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Hurricane ($19,377,337 a year), Inland Flooding ($15,452,645) and Drought ($3,272,862).

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Plan clock

Status:
No approved plan on record
Plan:
none
Approved:
none
Expires:
none
Update underway:
FEMA tracker shows a plan awaiting revisions

FEMA's plan status data lists no approved plan for this jurisdiction.

What changed since your last plan

Not available. No approved plan on record, so there is no approval date to count from.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underway
Vermilion ParishCountyNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions
Abbeville cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions
Delcambre townTownApproved, expires 2026-12-20Iberia Parish (FEMA plan 106792)2021-12-212026-12-2081FEMA tracker shows a plan awaiting revisions
Erath townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions
Gueydan townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions
Kaplan cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions
Maurice villageVillageNo approved plan on recordnonenonenoneFEMA tracker shows a plan awaiting revisions

State plan status and tribal plans in this state: see the state page.

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

  • dam failure (incl. upstream dams)
  • levee failure
  • flash flood as its own subtype
  • ice jams
  • debris flows
  • erosion (riverine and coastal)
  • land subsidence and sinkholes
  • expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1HurricaneRelatively HighRelatively High$17,015,528$1,147,869$1,213,940$19,377,33717
2Inland FloodingRelatively ModerateRelatively Low$15,003,565$217,282$231,798$15,452,64534
3DroughtRelatively HighRelatively Highn/a$3,272,862n/a$3,272,8625
4Cold WaveRelatively ModerateRelatively Moderate$9,353$1,820$2,529,801$2,540,9741
5Heat WaveRelatively LowRelatively Low$60$406$1,043,550$1,044,0163
6LightningRelatively HighRelatively High$39,092n/a$993,575$1,032,6676
7Coastal FloodingRelatively ModerateRelatively Moderate$616,052n/a$89,010$705,06215
8TornadoRelatively LowRelatively Low$308,590$2,167$102,134$412,89028
9Ice StormRelatively ModerateRelatively Low$45,250n/a$85,405$130,6550Declared 1 time; no Storm Events record of this type.
10Strong WindVery LowRelatively Low$41,174$362$74,314$115,85075Includes 1 High Wind record (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
11EarthquakeVery LowVery Low$57,438n/a$27,233$84,671Storm Events does not record earthquakes.
12HailVery LowVery Low$60,787$5,766$8,959$75,51250
13WildfireVery LowVery Low$20,247$176$6,463$26,8860No recorded events in Storm Events since 1996 (data through 2026-06-30).
14Winter WeatherVery LowVery Low$177$133$7,262$7,57213
15LandslideVery LowVery Low$28n/a$1$290No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No recorded events in Storm Events since 1996 (data through 2026-06-30).

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local wildfire, landslide and tsunami records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche and volcanic activity. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Coastal Flooding and Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Hazards that vary within the county: highest-rated census tracts

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 9504 (Very Low, 37.4); tract 9507 (Very Low, 25.3); tract 9508 (Very Low, 25.1)
Hurricanetract 9504 (Very High, 98.9); tract 9507 (Very High, 98.0); tract 9505 (Very High, 97.9)
Landslidetract 9511 (Very Low, 68.7); tract 9505 (Very Low, 55.5); tract 9502.01 (Very Low, 50.0)
Tornadotract 9504 (Relatively Low, 47.6); tract 9507 (Relatively Low, 42.2); tract 9502.02 (Relatively Low, 41.4)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 9511 (Relatively Low, 84.2); tract 9502.02 (Relatively Low, 78.3); tract 9505 (Relatively Low, 77.4)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 9504 is Census Tract 9504). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

Extent: scale, observed range and worst recorded event per hazard

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)15 records, 2006 to 2024 (15 zone-level)Storm Surge/Tide, 2019-07-13, $5,000,000 property; $0 crops (2019 dollars); NWS zone LAZ052Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill1 record, 2010 (1 zone-level)4 days; 1 with a recorded value4 consecutive days, 2010-01-08 to 2010-01-11, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)5 records, 1996 to 2023 (5 zone-level)10 days to 31 days (median 31 days); 5 with a recorded value31 days (1 month), 2000-12-01 to 2000-12-31, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)58 records, 1972 to 20240.75 in to 4.25 in (median 1 in); 58 with a recorded value4.25 in hail, 2003-04-07Hail, 2017-05-03, $250,000 property; $0 crops (2017 dollars)Event records naming jurisdictions in the plan: Abbeville city (12 records), Kaplan city (6 records), Maurice village (6 records), Gueydan town (4 records), Delcambre town (1 record), Erath town (1 record).
Excessive Heat, Heatheat index (in event narratives)3 records, 2000 to 2023 (3 zone-level)8 days to 31 days (median 19.5 days); 2 with a recorded valueAugust 2023 (1 monthly summary record), zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson17 records, 1998 to 2024 (17 zone-level)Strongest recorded: Hurricane record (NOAA event type 'Hurricane (Typhoon)'), 2020-10-09, category 1, $250,000,000 property; $0 crops (2020 dollars); NWS zone LAZ052Countywide (zone-level records).Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)0
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)34 records, 1997 to 2025 (3 zone-level)Flood, 2016-08-14, $75,000,000 property; $0 crops (2016 dollars)Event records naming jurisdictions in the plan: Abbeville city (7 records), Maurice village (6 records), Delcambre town (5 records), Erath town (4 records), Kaplan city (1 record). Zone-level records (3) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)6 records, 1997 to 2021Lightning, 1997-04-05, $320,000 property; crops not reported (1997 dollars)Event records naming jurisdictions in the plan: Gueydan town (2 records), Erath town (1 record), Maurice village (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)1 record, 2002 (1 zone-level)35 kt (40 mph); 1 with a recorded value35 kt (40 mph) estimated, High Wind, 2002-03-01; NWS zone LAZ052Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)104 records, 1968 to 202550 kt (58 mph) to 70 kt (81 mph) (median 50 kt (58 mph)); 52 with a recorded value70 kt (81 mph) measured gust, Thunderstorm Wind, 2016-05-19Thunderstorm Wind, 2004-12-09, $200,000 property; crops not reported (2004 dollars)Event records naming jurisdictions in the plan: Abbeville city (15 records), Kaplan city (15 records), Gueydan town (7 records), Erath town (4 records), Delcambre town (2 records), Maurice village (2 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)62 records, 1959 to 2025F/EF0 to F/EF3 (median F/EF1); 62 with a recorded valueF3 tornado, 1961-09-10, 5.7 mi path length (whole path, pre-1996), 283 yd wide, $2,500,000 property; crops not recorded (1961 dollars), 1 direct death, 55 direct injuriesEvent records naming jurisdictions in the plan: Gueydan town (7 records), Abbeville city (3 records), Delcambre town (3 records), Erath town (1 record), Maurice village (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Tsunaminone (count and damage only)0
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)13 records, 2004 to 2025 (13 zone-level)Winter Weather, 2011-02-03, $5,000 property; $0 crops (2011 dollars); NWS zone LAZ052Countywide (zone-level records).

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of debris flow, lightning and tsunami.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

A monthly summary record covers most or all of a month; it does not count days at wave conditions.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 46 declarations covering 32 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

No approved plan on record, so there is no approval date to count from.

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-01-242026-01-23EM-3638-LAEmergencySevere Winter StormWinter Weatherno Public Assistance recordedwithin last 5 years
2024-09-102024-09-10EM-3614-LAEmergencyTropical Storm FrancineHurricane (primary); also designated: Tornadono Public Assistance recordedwithin last 5 years
2021-09-132021-09-12EM-3574-LAEmergencyTropical Storm NicholasHurricaneno Public Assistance recorded
2021-08-292021-08-26DR-4611-LAMajor disasterHurricane IdaHurricane$262,785
2021-08-272021-08-26EM-3568-LAEmergencyTropical Storm IdaHurricaneno Public Assistance recordedsame incident as DR-4611
2021-03-092021-02-11DR-4590-LAMajor disasterSevere Winter StormsIce Stormno Public Assistance recorded
2021-02-182021-02-11EM-3556-LAEmergencySevere Winter StormIce Stormno Public Assistance recordedsame incident as DR-4590
2021-01-122020-10-26DR-4577-LAMajor disasterHurricane ZetaHurricaneno Public Assistance recorded
2020-10-272020-10-26EM-3549-LAEmergencyTropical Storm ZetaHurricaneno Public Assistance recordedsame incident as DR-4577
2020-10-162020-10-06DR-4570-LAMajor disasterHurricane DeltaHurricane$1,591,204.81
2020-10-072020-10-06EM-3547-LAEmergencyHurricane DeltaHurricaneno Public Assistance recordedsame incident as DR-4570
2020-09-142020-09-13EM-3543-LAEmergencyHurricane SallyHurricaneno Public Assistance recorded
2020-08-282020-08-22DR-4559-LAMajor disasterHurricane LauraHurricane$25,931,787.46
2020-08-232020-08-22EM-3538-LAEmergencyTropical Storms Laura and MarcoHurricaneno Public Assistance recordedsame incident as DR-4559
2020-06-072020-06-05EM-3527-LAEmergencyTropical Storm CristobalHurricaneno Public Assistance recorded
2020-03-242020-01-20DR-4484-LAMajor disasterCOVID-19 PandemicNon-natural, not counted$33,019.55
2020-03-132020-01-20EM-3459-LAEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4484
2019-08-272019-07-10DR-4458-LAMajor disasterHurricane BarryHurricane$645,182.47
2019-07-112019-07-10EM-3416-LAEmergencyTropical Storm BarryHurricaneno Public Assistance recordedsame incident as DR-4458
2017-10-162017-08-28DR-4345-LAMajor disasterTropical Storm HarveyHurricane$129,557.52
2017-10-062017-10-05EM-3392-LAEmergencyTropical Storm NateHurricaneno Public Assistance recorded
2017-08-282017-08-27EM-3382-LAEmergencyTropical Storm HarveyHurricaneno Public Assistance recordedsame incident as DR-4345
2016-08-142016-08-11DR-4277-LAMajor disasterSevere Storms and FloodingInland Flooding$2,167,623
2013-02-222013-01-08DR-4102-LAMajor disasterSevere Storms and FloodingInland Flooding$104,487.01
2012-08-292012-08-26DR-4080-LAMajor disasterHurricane IsaacHurricane$302,114.64
2008-09-132008-09-11DR-1792-LAMajor disasterHurricane IkeHurricane (primary); also designated: Inland Flooding$2,689,951.62
2008-09-112008-09-07EM-3295-LAEmergencyHurricane IkeHurricaneno Public Assistance recordedsame incident as DR-1792
2008-09-022008-09-01DR-1786-LAMajor disasterHurricane GustavHurricane (primary); also designated: Inland Flooding$1,799,792.44
2008-08-292008-08-27EM-3289-LAEmergencyHurricane GustavHurricaneno Public Assistance recordedsame incident as DR-1786
2005-09-242005-09-23DR-1607-LAMajor disasterHurricane RitaHurricane$46,191,307.97
2005-09-212005-09-20EM-3260-LAEmergencyHurricane RitaHurricaneno Public Assistance recordedsame incident as DR-1607
2005-08-292005-08-29DR-1603-LAMajor disasterHurricane KatrinaHurricane$237,145.05
2005-08-272005-08-26EM-3212-LAEmergencyHurricane KatrinaHurricaneno Public Assistance recordedsame incident as DR-1603
2003-02-012003-02-01EM-3172-LAEmergencyLoss of Space Shuttle ColumbiaNon-natural, not countedno Public Assistance recorded
2002-10-032002-10-01DR-1437-LAMajor disasterHurricane LiliHurricane$5,884,067.58
2001-06-112001-06-05DR-1380-LAMajor disasterTropical Storm AllisonHurricane$181,378.80
1998-09-231998-09-09DR-1246-LAMajor disasterHurricane Georges/Ts FrancesHurricaneno Public Assistance recorded
1993-02-021993-01-20DR-978-LAMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1992-08-261992-08-25DR-956-LAMajor disasterHurricane AndrewHurricaneno Public Assistance recorded
1989-07-171989-06-25DR-835-LAMajor disasterTropical Storm AllisonInland Flooding (primary); also designated: HurricanePA not declared for this county
1989-05-201989-05-04DR-829-LAMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1984-10-311984-10-31DR-728-LAMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1980-05-211980-05-21DR-622-LAMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1977-02-221977-02-22EM-3031-LAEmergencyDrought & FreezingWinter Weather (primary); also designated: Droughtno Public Assistance recorded
1974-09-231974-09-23DR-448-LAMajor disasterHurricane CarmenHurricaneno Public Assistance recorded
1971-10-131971-10-13DR-315-LAMajor disasterHurricane EdithHurricane (primary); also designated: Inland Floodingno Public Assistance recorded

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1964-10-031964-10-03DR-178-LAMajor disasterHurricane HildaHurricane (primary); also designated: Inland Flooding
1962-11-051962-11-05DR-139-LAMajor disasterChlorine Barge AccidentNon-natural, not counted
1958-05-201958-05-20DR-84-LAMajor disasterFloodsInland Flooding
1957-05-161957-05-16DR-73-LAMajor disasterFloods & HurricaneHurricane (primary); also designated: Inland Flooding
1956-10-041956-10-04DR-64-LAMajor disasterHurricaneHurricane (primary); also designated: Inland Flooding
1953-05-291953-05-29DR-3-LAMajor disasterFloodInland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Coastal Flooding15301996 to 2026-06-30
Cold Wave1001996 to 2026-06-30
Drought5111996 to 2026-06-30
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail58101955 to 2026-06-30
Heat Wave3101996 to 2026-06-30
Hurricane171231996 to 2026-06-30
Ice Storm0011996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Inland Flooding344101996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning6001996 to 2026-06-30
Strong Wind1051001955 to 2026-06-30Includes 1 High Wind record.
Tornado62211950 to 2026-06-30
Tsunami0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather13221996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2023-08-01Heat$0 property; $0 crops (zone total, 2023 dollars)0, 0NWS zone LAZ252 (LOWER VERMILION PARISH), zone-levelwithin last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2021-05-17Flash Flood$30,000 property; $0 crops (2021 dollars)1, 0MAURICEdeaths or injuries recorded
2020-10-09Hurricane (NOAA event type 'Hurricane (Typhoon)')category 1$250,000,000 property; $0 crops (zone total, 2020 dollars)0, 0NWS zone LAZ052 (VERMILION), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2019-07-13Storm Surge/Tide$5,000,000 property; $0 crops (zone total, 2019 dollars)0, 0NWS zone LAZ052 (VERMILION), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2016-08-14Flood$75,000,000 property; $0 crops (2016 dollars)0, 0MAURICE to NUNEZB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2016-05-19Thunderstorm Wind70 kt (81 mph) measured gust$0 property; $0 crops (2016 dollars)0, 0GUEYDANB1-c worst recorded: Thunderstorm Wind
2010-01-08Cold/Wind Chill$0 property; $0 crops (zone total, 2010 dollars)0, 0NWS zone LAZ052 (VERMILION), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2002-03-01High Wind35 kt (40 mph) estimated$25,000 property; crops not reported (zone total, 2002 dollars)0, 0NWS zone LAZ052 (VERMILION), zone-levelB1-c worst recorded: High Wind and Strong Wind
2000-12-01Droughtproperty not reported; $35,800,000 crops (zone total, 2000 dollars)0, 0NWS zone LAZ052 (VERMILION), zone-levelB1-c worst recorded: Drought
1997-04-05Lightning$320,000 property; crops not reported (1997 dollars)0, 0MAURICEB1-c worst recorded: Lightning
1969-12-25TornadoF3, 1.5 mi path length (whole path, pre-1996), 100 yd wide$250,000 property; crops not recorded (1969 dollars)1, 8location not recordeddeaths or injuries recorded
1961-09-10TornadoF3, 5.7 mi path length (whole path, pre-1996), 283 yd wide$2,500,000 property; crops not recorded (1961 dollars)1, 55location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (319 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

Tribal and special-area declarations in this state are listed on the state page.

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Coastal Flooding4.79events per year at a location (modeled)about 4.8 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave1.05event-days per yearabout 1.05 days per yearPossibleStorm Events event-days in 1 of 30 years, 1996 to 2025 (3.33%)19.72005-11-12 to 2024-11-12 (19 years)countywide
Drought27event-days per yearabout 27 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)7982000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000739annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0739%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail0.944events per yearabout 0.94 per yearLikelyFEMA annualized frequency (modeled)39.1 (modeled)1986 to 2023 (38 years)countywide
Heat Wave9.79event-days per yearabout 9.79 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)1562005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.175events per yearabout 1 in 6 yearsLikelyFEMA annualized frequency (modeled)661851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.349event-days per yearabout 0.349 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)221946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding0.929event-days per yearabout 0.929 days per yearLikelyStorm Events event-days in 19 of 30 years, 1996 to 2025 (63.3%)261996 to 2023 (28 years)see B1-f
Landslide0.115events per year (modeled)about 1 in 9 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning85.6days per year with a strikeabout 85.6 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.393events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)141986 to 2023 (38 years)countywide
Tornado0.901events per yearabout 0.9 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Wildfire0.000491annual probability at a locationchance a given location in the county burns in a year: 0.0491%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather0.737event-days per yearabout 0.737 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)13.82005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202523300.767
Hail2.00 in+1996 to 20253300.1
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202545301.5
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20252300.0667
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 202527300.9
TornadoEF0-11996 to 202526300.867
TornadoEF2-31996 to 20252300.0667
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Coastal Flooding16 of 1679.686.399.1Relatively High 2, Relatively Moderate 3, Relatively Low 11
Cold Wave16 of 1664.580.591.0Relatively High 10, Relatively Moderate 6
Drought15 of 1678.194.999.5Relatively High 4, Relatively Moderate 8, Relatively Low 2, Very Low 1, No Rating 1
Earthquake16 of 1611.319.537.4Very Low 16
Hail16 of 1636.644.956.2Relatively Low 14, Very Low 2
Heat Wave16 of 1647.870.685.4Relatively High 1, Relatively Moderate 13, Relatively Low 2
Hurricane16 of 1692.296.098.9Very High 4, Relatively High 12
Ice Storm16 of 1645.066.682.3Relatively Moderate 6, Relatively Low 10
Inland Flooding16 of 1617.974.697.3Very High 1, Relatively High 7, Relatively Moderate 5, Relatively Low 3
Landslide16 of 1619.935.668.7Very Low 16
Lightning16 of 1685.196.299.0Very High 8, Relatively High 8
Strong Wind16 of 1619.732.046.2Relatively Low 15, Very Low 1
Tornado16 of 1628.235.947.6Relatively Low 15, Very Low 1
Tsunami0 of 16Insufficient Data 16
Wildfire16 of 1630.369.884.2Relatively Low 9, Very Low 7
Winter Weather16 of 1620.324.931.6Relatively Low 16

Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Vermilion ParishCountyNo approved plan on recordFMA RL 138, SRL 63; any 319$16,258,346.910 total; no approved planIncludes $15,423.92 for declarations not counted as hazard incidents (DR-4484-LA).
Abbeville cityCityNo approved plan on recordFMA RL 3, SRL 10; any 25$4,586,512.8637 total; no approved plan
Delcambre townTownApproved, expires 2026-12-20FMA RL 27, SRL 10; any 66$1,766,598.7611 total; 0 since its planWhole community, including the part in Iberia Parish; in-county portion (county table): FMA RL 13, FMA SRL 4, NFIP RL 29, NFIP SRL 2, any category 37.
Erath townTownNo approved plan on recordFMA RL 31, SRL 21; any 90$512,662.2411 total; no approved plan
Gueydan townTownNo approved plan on recordFMA RL 1, SRL 0; any 2$792,347.3520 total; no approved plan
Kaplan cityCityNo approved plan on recordFMA RL 0, SRL 0; any 4$990,608.3122 total; no approved plan
Maurice villageVillageNo approved plan on recordFMA RL 0, SRL 0; any 4$260,341.9316 total; no approved plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

No approved plan on record, so there is no approval date to count from.

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

Sources: 1, 2, 3, 5, 6, 7

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Coastal Flooding$5,522,966,924n/a37,641$616,052n/a$89,0100.0112%
Cold Wave$8,124,171,771$150,992,39657,317$9,353$1,820$2,529,8010.000115%
Droughtn/a$74,284,504n/an/a$3,272,862n/a4.41% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$13,140,418,503n/a57,359$57,438n/a$27,2330.000437%
Hail$8,124,171,771$150,992,39657,317$60,787$5,766$8,9590.000748%
Heat Wave$8,124,171,771$150,992,39657,317$60$406$1,043,550under 0.0001%
Hurricane$8,123,919,176$150,714,85657,315$17,015,528$1,147,869$1,213,9400.209%
Ice Storm$8,123,239,753n/a57,311$45,250n/a$85,4050.000557%
Inland Flooding$8,051,136,824$95,487,37920,929$15,003,565$217,282$231,798n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$4,900,630n/a30$28n/a$10.00058%
Lightning$8,124,171,771n/a57,317$39,092n/a$993,5750.000481%
Strong Wind$8,124,171,771$150,992,39657,317$41,174$362$74,3140.000507%
Tornado$8,124,171,771$150,992,39657,317$308,590$2,167$102,1340.0038%
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$1,722,650,878$48,877,32816,101$20,247$176$6,4630.00118%
Winter Weather$8,124,171,771$150,992,39657,317$177$133$7,262under 0.0001%

Totals since the plan: not available. No approved plan on record, so there is no approval date to count from.

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

MeasureValue
Population57,317
Building value (total, not at risk)$8,124,171,771
Agriculture value (total, not at risk)$150,992,396
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$37,866,183
Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage)$6,413,445
Social vulnerability ratingRelatively High
Community resilience ratingRelatively High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)186Severe repetitive loss, FMA definition (44 CFR 77.2)98
Repetitive loss, NFIP insurance definition369Severe repetitive loss, NFIP insurance definition41

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total186983694148191172
of which: Vermilion Parish (unincorporated area)138632432731962106
of which: Delcambre town13429237713
of which: Erath town3121677901744
of which: Gueydan town1020201
of which: Kaplan city0040402
of which: Maurice village0040400
of which: Abbeville city3102052556
Statewide, no county in FEMA's file0040400

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Vermilion Parish220221138632432731962106
Abbeville city2202643102052556
Delcambre town2202232710524661126Whole community, including the part in Iberia Parish; in-county portion (county table): FMA RL 13, FMA SRL 4, NFIP RL 29, NFIP SRL 2, any category 37.
Erath town2202243121677901744
Gueydan town2202251020201
Kaplan city2202260040402
Maurice village2202270040400

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential175883263143590151
2 to 4 unit residential4415416013
other residential1353610
non-residential632332408
not reported0000000

FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 95 properties are FMA repetitive loss but not NFIP repetitive loss, and 278 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Vermilion Parish, LA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 22113). Automated baseline. https://hazardplain.org/la/22113/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: [email protected]