Hazard Plain Automated baseline

St. Landry Parish, LA

Risk-assessment baseline packet

County FIPS:
22097
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: Approved, expires 2028-04-10. Plan: St. Landry Parish (FEMA plan 108644), approved 2023-04-11.

Since the plan was approved on 2023-04-11: 3 new hazard declarations (3 incidents): EM-3614-LA (Tropical Storm Francine), EM-3638-LA (Severe Winter Storm), DR-4927-LA (Tropical Storm Arthur).

NOAA Storm Events records since that date: 52 records (data through 2026-06-30).

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($20,854,121 a year), Hurricane ($8,200,743) and Tornado ($7,213,836).

Repetitive-loss flood properties now: FMA RL 14, SRL 14 (44 CFR 77.2); any definition: 112.

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:
Approved, expires 2028-04-10
Plan:
St. Landry Parish (FEMA plan 108644)
Approved:
2023-04-11
Days to expiry:
558

What changed since your last plan (approved 2023-04-11)

New federal declarations:
3 new hazard declarations (3 incidents): EM-3614-LA (Tropical Storm Francine), EM-3638-LA (Severe Winter Storm), DR-4927-LA (Tropical Storm Arthur)
Storm Events records since approval:
52 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 14, SRL 14 (44 CFR 77.2); any definition: 112
Repeat-flood change:
this release sets the baseline count.

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

Plan status for every jurisdiction listed in this county: 13 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.

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

Plan clock

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
St. Landry ParishCountyApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Arnaudville townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558Also approved under plan 107324 (St. Martin Parish, expires 2027-04-13). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last.
Cankton villageVillageApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Eunice cityCityApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Grand Coteau townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558this jurisdiction approved 2023-04-13
Krotz Springs townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Leonville townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Melville townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Opelousas cityCityApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Palmetto villageVillageApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Port Barre townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Sunset townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558
Washington townTownApproved, expires 2028-04-10St. Landry Parish (FEMA plan 108644)2023-04-112028-04-10558

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
1Inland FloodingRelatively ModerateRelatively Moderate$20,082,726$654,663$116,732$20,854,12151
2HurricaneRelatively ModerateRelatively Moderate$7,225,965$605,104$369,674$8,200,7438
3TornadoRelatively HighRelatively Moderate$2,015,175$2,999$5,195,662$7,213,83644
4Cold WaveRelatively HighRelatively High$38,521$1,134$6,130,675$6,170,3292
5DroughtRelatively HighRelatively Highn/a$2,605,547n/a$2,605,5475
6Heat WaveRelatively ModerateRelatively Moderate$1,023$367$1,759,847$1,761,2373
7LightningRelatively HighRelatively High$44,660n/a$1,489,020$1,533,6796
8Strong WindRelatively ModerateRelatively Low$103,052$20,546$382,926$506,524153Includes 3 High Wind and 3 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
9Ice StormRelatively HighRelatively Moderate$186,637n/a$221,399$408,0372
10EarthquakeVery LowRelatively Low$219,569n/a$74,110$293,679Storm Events does not record earthquakes.
11HailRelatively LowRelatively Low$207,198$9,652$11,105$227,95554
12WildfireRelatively LowVery Low$72,058$50$11,883$83,9910No recorded events in Storm Events since 1996 (data through 2026-06-30).
13Winter WeatherRelatively LowRelatively Low$34,848$226$9,185$44,25913
14Coastal FloodingVery LowVery Low$13,195n/a$2,900$16,0950No recorded events in Storm Events since 1996 (data through 2026-06-30).
15LandslideVery LowVery Low$278n/a$6$2840No 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 and landslide 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, tsunami 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 9608 (Relatively Low, 44.8); tract 9615.02 (Relatively Low, 42.9); tract 9602 (Relatively Low, 41.5)
Hurricanetract 9605 (Relatively High, 92.7); tract 9602 (Relatively High, 92.5); tract 9617.01 (Relatively High, 92.4)
Landslidetract 9602 (Relatively Low, 82.3); tract 9601 (Very Low, 78.1); tract 9604 (Very Low, 77.1)
Tornadotract 9602 (Very High, 97.1); tract 9612 (Very High, 96.0); tract 9606.01 (Very High, 95.9)
Wildfiretract 9612 (Relatively Low, 87.5); tract 9606.01 (Relatively Low, 85.6); tract 9602 (Relatively Low, 85.4)

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 9608 is Census Tract 9608). 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)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill2 records, 2010 to 2014 (2 zone-level)1 day to 4 days (median 2.5 days); 2 with a recorded value4 consecutive days, 2010-01-08 to 2010-01-11, zone-levelCountywide (zone-level records).Wind chill: in event narratives only (local data needed).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0Temperature: in event narratives only (local data needed).
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-levelDrought, 1998-08-01, property not reported; $29,600,000 crops, reported for the zone (1998 dollars)Countywide (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)68 records, 1976 to 20250.75 in to 2 in (median 1 in); 68 with a recorded value2 in hail, 2011-03-30; same size also recorded on 1988-04-18Event records naming jurisdictions in the plan: Opelousas city (8 records), Eunice city (6 records), Port Barre town (6 records), Washington town (6 records), Arnaudville town (3 records), Grand Coteau town (2 records), Krotz Springs town (2 records), Leonville town (2 records), Melville town (1 record), Sunset 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).Heat index: in event narratives only (local data needed).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson8 records, 2002 to 2020 (8 zone-level)Strongest recorded: Hurricane (Typhoon) record (NOAA's event type name), 2008-09-01, category 1, $100,000,000 property; $25,000,000 crops (2008 dollars); NWS zone LAZ033Countywide (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)2 records, 2011 to 2021 (2 zone-level)Ice Storm, 2011-02-03, $250,000 property; $0 crops (2011 dollars); NWS zone LAZ033Countywide (zone-level records).Ice thickness: in event narratives only (local data needed).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)51 records, 1997 to 2026 (2 zone-level)Flood, 2013-01-10, $41,570,000 property; $0 crops (2013 dollars)Event records naming jurisdictions in the plan: Eunice city (11 records), Opelousas city (8 records), Arnaudville town (5 records), Cankton village (3 records), Grand Coteau town (3 records), Port Barre town (2 records), Sunset town (2 records), Leonville town (1 record), Palmetto village (1 record). Zone-level records (2) 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)0Physical measure: in event narratives only (local data needed).
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)6 records, 1996 to 2013Lightning, 2001-08-01, $75,000 property; crops not reported (2001 dollars)Event records naming jurisdictions in the plan: Eunice city (2 records), Opelousas city (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed).
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)6 records, 2000 to 2018 (6 zone-level)35 kt (40 mph) to 52 kt (60 mph) (median 43 kt (49 mph)); 5 with a recorded value52 kt (60 mph) estimated gust, High Wind, 2009-10-09; NWS zone LAZ033High Wind, 2000-12-16, $50,000 property; crops not reported, reported for the zone (2000 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)214 records, 1979 to 202643 kt (49 mph) to 83 kt (96 mph) (median 50 kt (58 mph)); 122 with a recorded value83 kt (96 mph) estimated gust, Thunderstorm Wind, 2011-03-29; same speed and measurement basis also recorded on 2009-03-25Event records naming jurisdictions in the plan: Opelousas city (34 records), Port Barre town (17 records), Eunice city (14 records), Washington town (10 records), Krotz Springs town (8 records), Arnaudville town (7 records), Leonville town (7 records), Melville town (7 records), Palmetto village (7 records), Sunset town (6 records); and 1 more jurisdiction (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)73 records, 1951 to 2026F/EF0 to F/EF3 (median F/EF1); 73 with a recorded valueF3 tornado, 1957-10-15, 22 mi path length (whole path, pre-1996), 100 yd wide, $250,000 property; crops not recorded (1957 dollars), 10 direct injuriesTornado, 2002-10-29, $5,000,000 property; crops not reported (2002 dollars)Event records naming jurisdictions in the plan: Krotz Springs town (4 records), Port Barre town (4 records), Arnaudville town (3 records), Opelousas city (2 records), Eunice city (1 record), Leonville town (1 record), Palmetto village (1 record), Washington town (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).
Wildfireacres burned (local data)0Acres burned: in event narratives only (local data needed).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)13 records, 2007 to 2025 (13 zone-level)No damage reported in 13 records.Countywide (zone-level records).Snow depth: in event narratives only (local data needed).

Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records whose zone 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 33 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-06-302026-06-17DR-4927-LAMajor disasterTropical Storm ArthurHurricaneno Public Assistance recordednew since last plan; within last 5 years
2026-01-242026-01-23EM-3638-LAEmergencySevere Winter StormWinter Weather$76,025.02new since last plan; within last 5 years
2024-09-102024-09-10EM-3614-LAEmergencyTropical Storm FrancineHurricane (primary); also designated: Tornadono Public Assistance recordednew since last plan; within last 5 years
2021-09-132021-09-12EM-3574-LAEmergencyTropical Storm NicholasHurricaneno Public Assistance recorded
2021-08-292021-08-26DR-4611-LAMajor disasterHurricane IdaHurricane$51,391.93
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 Storm$126,654.49
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$1,625,191.24
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$596,033.23
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$1,048,607.52
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$197,269.25
2019-07-112019-07-10EM-3416-LAEmergencyTropical Storm BarryHurricaneno Public Assistance recordedsame incident as DR-4458
2019-05-292019-05-10EM-3413-LAEmergencyFloodingInland Floodingno Public Assistance recorded
2016-08-142016-08-11DR-4277-LAMajor disasterSevere Storms and FloodingInland Flooding$4,296,263.45
2016-02-052015-12-28EM-3376-LAEmergencyFloodingInland Flooding$25,757.20
2013-02-222013-01-08DR-4102-LAMajor disasterSevere Storms and FloodingInland Flooding$93,519.42
2012-08-292012-08-26DR-4080-LAMajor disasterHurricane IsaacHurricane$202,239.44
2011-08-182011-04-25DR-4015-LAMajor disasterFloodingInland Floodingno Public Assistance recorded
2011-05-062011-04-25EM-3322-LAEmergencyFloodingInland Flooding$189,096.66same incident as DR-4015
2008-09-022008-09-01DR-1786-LAMajor disasterHurricane GustavHurricane (primary); also designated: Inland Flooding$8,300,759.42
2008-08-292008-08-27EM-3289-LAEmergencyHurricane GustavHurricaneno Public Assistance recordedsame incident as DR-1786
2006-11-022006-10-16DR-1668-LAMajor disasterSevere Storms and FloodingInland FloodingPA not declared for this county
2005-09-242005-09-23DR-1607-LAMajor disasterHurricane RitaHurricane$1,255,785.55
2005-09-212005-09-20EM-3260-LAEmergencyHurricane RitaHurricaneno Public Assistance recordedsame incident as DR-1607
2005-08-292005-08-29DR-1603-LAMajor disasterHurricane KatrinaHurricane$705,276.13
2005-08-272005-08-26EM-3212-LAEmergencyHurricane KatrinaHurricaneno Public Assistance recordedsame incident as DR-1603
2004-06-082004-05-12DR-1521-LAMajor disasterSevere Storms and FloodingInland FloodingPA not declared for this county
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$1,418,412.63
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
1977-05-021977-05-02DR-534-LAMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1975-06-061975-06-06DR-470-LAMajor disasterHeavy Rains, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1974-09-231974-09-23DR-448-LAMajor disasterHurricane CarmenHurricaneno Public Assistance recorded
1973-04-271973-04-27DR-374-LAMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1971-10-131971-10-13DR-315-LAMajor disasterHurricane EdithHurricane (primary); also designated: Inland Floodingno Public Assistance recorded
1965-09-101965-09-10DR-208-LAMajor disasterHurricane BetsyHurricane (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 Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave2000001996 to 2026-06-30
Drought5101001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail68303001955 to 2026-06-30
Heat Wave3101001996 to 2026-06-30
Hurricane80002021996 to 2026-06-30
Ice Storm2000101996 to 2026-06-30
Inland Flooding51102121501996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning6000001996 to 2026-06-30
Strong Wind22031132001955 to 2026-06-30Includes 3 High Wind and 3 Strong Wind records.
Tornado73527211950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather13101111996 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, reported for the zone (2023 dollars)0, 0NWS zone LAZ033 (ST. LANDRY), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2013-01-10Flood$41,570,000 property; $0 crops (2013 dollars)0, 0EUNICE ARPT to HIGGINBOTHAMB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2011-03-29Thunderstorm Wind83 kt (96 mph) estimated gust$250,000 property; $0 crops (2011 dollars)0, 0OPELOUSAS to PORT BARREB1-c worst recorded: Thunderstorm Wind
2010-01-08Cold/Wind Chill$0 property; $0 crops, reported for the zone (2010 dollars)0, 0NWS zone LAZ033 (ST. LANDRY), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2009-10-09High Wind52 kt (60 mph) estimated gust$5,000 property; $0 crops, reported for the zone (2009 dollars)0, 0NWS zone LAZ033 (ST. LANDRY), zone-levelB1-c worst recorded: High Wind and Strong Wind
2008-09-01Hurricane (Typhoon), NOAA's event type namecategory 1$100,000,000 property; $25,000,000 crops, reported for the zone (2008 dollars)0, 0NWS zone LAZ033 (ST. LANDRY), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2001-08-01Lightning$75,000 property; crops not reported (2001 dollars)0, 0PLAISANCEB1-c worst recorded: Lightning
2000-12-16High Windspeed not recorded$50,000 property; crops not reported, reported for the zone (2000 dollars)2, 0NWS zone LAZ033 (ST. LANDRY), zone-leveldeaths or injuries recorded
2000-12-01Droughtproperty not reported; $26,800,000 crops, reported for the zone (2000 dollars)0, 0NWS zone LAZ033 (ST. LANDRY), zone-levelB1-c worst recorded: Drought
1957-11-07TornadoF3, 3.3 mi path length (whole path, pre-1996), 200 yd wide$250,000 property; crops not recorded (1957 dollars)2, 5location not recordeddeaths or injuries recorded
1957-10-15TornadoF3, 22 mi path length (whole path, pre-1996), 100 yd wide$250,000 property; crops not recorded (1957 dollars)0, 10location not recordedB1-c worst recorded: Tornado
1952-04-04TornadoF2, 13.2 mi path length (whole path, pre-1996), 67 yd wide$250,000 property; crops not recorded (1952 dollars)4, 33location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (451 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 Flooding0.012events per year at a location (modeled)about 0.012 per year at a given location in the countyStorm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Cold Wave1.21event-days per yearabout 1.21 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)232005-11-12 to 2024-11-12 (19 years)countywide
Drought18.9event-days per yearabout 18.9 days per yearLikely (from Storm Events: 4 of 30 years)event-days in 4 of 30 years, 1996 to 2025 (13.3%)6442000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000916annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0916%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.58events per yearabout 1.58 per yearHighly likelyFEMA annualized frequency (modeled)60.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave11.2event-days per yearabout 11.2 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)1852005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.163events per yearabout 1 in 6 yearsLikelyFEMA annualized frequency (modeled)621851 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 Storm0.822event-days per yearabout 0.822 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)561946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding1.39event-days per yearabout 1.39 days per yearLikely (from Storm Events: 20 of 30 years)event-days in 20 of 30 years, 1996 to 2025 (66.7%)391996 to 2023 (28 years)see B1-f
Landslide0.138events per year (modeled)about 1 in 7 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning80.5days per year with a strikeabout 80.5 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.87events per yearabout 0.87 per yearLikelyFEMA annualized frequency (modeled)341986 to 2023 (38 years)countywide
Tornado0.847events per yearabout 0.85 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000404annual probability at a locationchance a given location in the county burns in a year: 0.0404%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 Weather1.58event-days per yearabout 1.58 days per yearLikely (from Storm Events: 9 of 30 years)event-days in 9 of 30 years, 1996 to 2025 (30%)302005-11-12 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 202527300.9
Hail2.00 in+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025105303.5
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20257300.233
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 202531301.03
TornadoEF0-11996 to 202537301.23
TornadoEF2-31996 to 20256300.2
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 Flooding6 of 2872.179.687.1Relatively Low 4, Very Low 2, No Rating 22
Cold Wave28 of 2876.985.795.6Very High 2, Relatively High 23, Relatively Moderate 3
Drought20 of 2868.894.299.0Relatively High 5, Relatively Moderate 9, Relatively Low 3, Very Low 3, No Rating 8
Earthquake28 of 2816.131.644.8Relatively Low 3, Very Low 25
Hail28 of 2840.554.768.8Relatively Low 28
Heat Wave28 of 2853.768.086.8Relatively High 4, Relatively Moderate 21, Relatively Low 3
Hurricane28 of 2880.086.292.7Relatively High 7, Relatively Moderate 21
Ice Storm28 of 2863.580.291.0Relatively High 1, Relatively Moderate 26, Relatively Low 1
Inland Flooding28 of 2825.665.896.1Very High 1, Relatively High 8, Relatively Moderate 11, Relatively Low 8
Landslide27 of 289.235.882.3Relatively Low 1, Very Low 26, No Rating 1
Lightning28 of 2886.094.099.0Very High 11, Relatively High 17
Strong Wind28 of 2833.955.378.5Relatively Moderate 14, Relatively Low 14
Tornado28 of 2867.483.597.1Very High 7, Relatively High 16, Relatively Moderate 5
Wildfire28 of 2823.165.787.5Relatively Low 13, Very Low 15
Winter Weather28 of 2830.040.757.5Relatively Moderate 9, Relatively Low 19

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
St. Landry ParishCountyApproved, expires 2028-04-10FMA RL 8, SRL 5; any 66$7,606,125.270 total; 0 since its planIncludes $419,605.03 for declarations not counted as hazard incidents (DR-4484-LA).
Arnaudville townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$23,186.2518 total; 1 since its planAlso approved under plan 107324 (St. Martin Parish, expires 2027-04-13). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last.
Cankton villageVillageApproved, expires 2028-04-10FMA RL 1, SRL 1; any 2$1,1253 total; 0 since its plan
Eunice cityCityApproved, expires 2028-04-10FMA RL 3, SRL 6; any 25$986,161.5234 total; 3 since its planWhole community, including the part in Acadia Parish; in-county portion (county table): FMA RL 2, FMA SRL 5, NFIP RL 24, NFIP SRL 5, any category 24.
Grand Coteau townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 1$138,219.817 total; 3 since its plan
Krotz Springs townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$138,132.7214 total; 4 since its plan
Leonville townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 1$153,57811 total; 3 since its plan
Melville townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$101,635.218 total; 1 since its plan
Opelousas cityCityApproved, expires 2028-04-10FMA RL 1, SRL 2; any 13$1,686,656.1153 total; 6 since its plan
Palmetto villageVillageApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$22,872.979 total; 0 since its plan
Port Barre townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$97,358.9329 total; 5 since its plan
Sunset townTownApproved, expires 2028-04-10FMA RL 2, SRL 1; any 5$167,423.959 total; 1 since its plan
Washington townTownApproved, expires 2028-04-10FMA RL 0, SRL 0; any 0$442,668.8517 total; 0 since its 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.

  • 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 2023-04-11county-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$2,157,213,049n/a10,953$13,195n/a$2,9000.000612%
Cold Wave$17,089,929,620$119,954,09282,428$38,521$1,134$6,130,6750.000225%
Droughtn/a$82,513,160n/an/a$2,605,547n/a3.16% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$28,668,247,815n/a82,540$219,569n/a$74,1100.000766%
Hail$17,089,929,620$119,954,09282,428$207,198$9,652$11,1050.00121%$0
Heat Wave$17,089,929,620$119,954,09282,428$1,023$367$1,759,847under 0.0001%$0
Hurricane$17,089,718,297$119,651,32082,427$7,225,965$605,104$369,6740.0423%no Public Assistance recorded (2 declarations)
Ice Storm$17,089,898,904n/a82,427$186,637n/a$221,3990.00109%
Inland Flooding$17,067,989,164$57,416,72315,546$20,082,726$654,663$116,732n/a (see note)$514,000NRI 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$36,926,116n/a155$278n/a$60.000753%
Lightning$17,089,929,620n/a82,428$44,660n/a$1,489,0200.000261%
Strong Wind$17,089,929,620$119,954,09282,428$103,052$20,546$382,9260.000603%$131,000
Tornado$17,089,929,620$119,954,09282,428$2,015,175$2,999$5,195,6620.0118%$122,000no Public Assistance recorded (1 declaration)
Wildfire$2,431,396,949$18,847,37120,111$72,058$50$11,8830.00296%
Winter Weather$17,089,929,620$119,954,09282,428$34,848$226$9,1850.000204%$0$76,025.02

Totals since 2023-04-11 (Storm Events through 2026-06-30): 49 county-coded records, 49 with a damage value recorded (including $0), $767,000; 3 zone-level records, 3 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: $76,025.02 on 3 counted declarations, 1 of them with Public Assistance.

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
Population82,428
Building value (total, not at risk)$17,089,929,620
Agriculture value (total, not at risk)$119,954,092
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$34,145,191
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)$15,775,125
Social vulnerability ratingVery 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)14Severe repetitive loss, FMA definition (44 CFR 77.2)14
Repetitive loss, NFIP insurance definition112Severe repetitive loss, NFIP insurance definition14

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 total141411214112043
of which: St. Landry Parish (unincorporated area)8566566027
of which: Cankton village1121200
of which: Eunice city252452408
of which: Grand Coteau town0010100
of which: Leonville town0010101
of which: Opelousas city121321303
of which: Sunset town2151504
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
St. Landry Parish2201658566566027
Arnaudville town2201660000000
Cankton village2201671121200
Eunice city220168362452519Whole community, including the part in Acadia Parish; in-county portion (county table): FMA RL 2, FMA SRL 5, NFIP RL 24, NFIP SRL 5, any category 24.
Grand Coteau town2201690010100
Krotz Springs town2201700000000
Leonville town2201710010101
Melville town2201720000000
Opelousas city220173121321303
Palmetto village2201740000000
Port Barre town2201750000000
Sunset town2201762151504
Washington town2201770000000

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 residential141310513105041
2 to 4 unit residential0000000
other residential0000000
non-residential0171702
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 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 98 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, organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B. Each section heading names the item its tables support; the plan and FEMA's review decide whether the 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). St. Landry Parish, LA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 22097). Automated baseline. https://hazardplain.org/la/22097/ 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]

Hazard Plain release 2026-10. As of 2026-09-30; Storm Events data through 2026-06-30. Automated baseline.