Hazard Plain Automated baseline

Carroll County, IN

Risk-assessment baseline packet

County FIPS:
18015
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 2029-07-21. Plan: Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840), approved 2024-07-22.

Since the plan was approved on 2024-07-22: 3 new hazard declarations (2 incidents) and 25 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($7,774,917 a year), Cold Wave ($1,362,625) and Tornado ($1,219,726).

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 2029-07-21
Plan:
Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)
Approved:
2024-07-22
Days to expiry:
1,025

What changed since your last plan (approved 2024-07-22)

New federal declarations:
3 new hazard declarations (2 incidents): EM-3641-IN (Severe Winter Storm), EM-3651-IN (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), DR-4933-IN (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding)
Storm Events records since approval:
25 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 39, SRL 25 (44 CFR 77.2); any definition: 88
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

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Carroll CountyCountyApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Burlington townTownApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Camden townTownApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Delphi cityCityApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Flora townTownApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Yeoman townTownApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Carroll Consolidated School CorporationSchool/School DistrictApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Delphi Community School CorporationSchool/School DistrictApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025
Rossville Consolidated School DistrictSchool/School DistrictPlan 111809 approved 2026-09-16, pending adoption here; not yet eligibleClinton County 2025 Hazard Mitigation Plan (FEMA plan 111809), pending adoption here2026-09-16 by FEMA; not yet adopted here2031-09-15 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Carroll County Soil & Water Conservation DistrictConservation DistrictApproved, expires 2029-07-21Carroll County 2024 Hazard Mitigation Plan (FEMA plan 109840)2024-07-222029-07-211,025

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
1Inland FloodingRelatively LowRelatively Low$7,105,076$257,446$412,396$7,774,91750
2Cold WaveRelatively LowRelatively Moderate$577$96,259$1,265,789$1,362,6256
3TornadoRelatively LowRelatively Low$802,099$2,714$414,913$1,219,72612
4Strong WindRelatively LowRelatively Low$73,819$2,953$444,067$520,839116Includes 7 High Wind records (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
5HailRelatively LowRelatively Low$322,633$59,854$9,014$391,50135
6DroughtRelatively LowRelatively Lown/a$355,444n/a$355,44414
7EarthquakeVery LowRelatively Low$273,891n/a$28,641$302,532Storm Events does not record earthquakes.
8Heat WaveVery LowRelatively Low$2,044$4$242,086$244,1343
9LightningVery LowVery Low$12,426n/a$50,968$63,3933
10Winter WeatherRelatively LowRelatively Low$1,324$1,010$45,159$47,49435
11Ice StormVery LowVery Low$1,063n/a$17,246$18,3092
12HurricaneVery LowVery Low$4,895$13,037$3$17,9350No recorded events in Storm Events since 1996 (data through 2026-06-30).
13WildfireVery LowVery Low$2,594$10$249$2,8530No recorded events in Storm Events since 1996 (data through 2026-06-30).
14LandslideVery LowVery Low$120n/a$1,445$1,5650No 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, coastal flooding, 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.

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 9598 (Relatively Low, 69.2); tract 9595 (Relatively Low, 65.4); tract 9596 (Relatively Low, 57.7)
Hurricanetract 9593 (Very Low, 45.1); tract 9597 (Very Low, 44.5); tract 9594 (Very Low, 43.9)
Landslidetract 9594 (Relatively Low, 90.0); tract 9597 (Relatively Low, 86.3); tract 9593 (Relatively Low, 85.6)
Tornadotract 9595 (Relatively High, 77.8); tract 9598 (Relatively Moderate, 74.3); tract 9596 (Relatively Moderate, 72.9)
Wildfiretract 9595 (Very Low, 67.2); tract 9599 (Very Low, 57.8); tract 9597 (Very Low, 55.8)

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 9598 is Census Tract 9598). 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
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill6 records, 1996 to 2026 (6 zone-level)1 day to 4 days (median 2.5 days); 6 with a recorded value4 consecutive days, 1996-02-02 to 1996-02-05, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)14 records, 2012 to 2026 (14 zone-level)66 days to 190 days (median 71 days); 3 with a recorded value190 days (about 6.2 months), 2025-09-30 to 2026-04-07, a run of 8 consecutive Storm Events drought records, 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)52 records, 1956 to 20260.75 in to 2 in (median 1 in); 52 with a recorded value2 in hail, 2012-08-09Event records naming jurisdictions in the plan: Delphi city (10 records), Flora town (9 records), Burlington town (3 records), Camden town (1 record).
Excessive Heat, Heatheat index (in event narratives)3 records, 1997 to 2023 (3 zone-level)2 days; 2 with a recorded value2 consecutive days, 2023-08-23 to 2023-08-24, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm 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, 2005 to 2007 (2 zone-level)No damage reported in 2 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)50 records, 1996 to 2021 (21 zone-level)Flood, 2008-01-08, $12,000,000 property; $0 crops (2008 dollars)Event records naming jurisdictions in the plan: Delphi city (4 records), Burlington town (3 records), Camden town (3 records), Flora town (2 records). Zone-level records (21) 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)3 records, 1996 to 2009Lightning, 2009-05-15, $100,000 property; $0 crops (2009 dollars)Event records naming jurisdictions in the plan: Flora town (2 records), Delphi city (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)7 records, 1997 to 2026 (7 zone-level)45 kt (52 mph) to 62 kt (71 mph) (median 50 kt (58 mph)); 7 with a recorded value62 kt (71 mph) estimated, High Wind, 2002-03-09; NWS zone INZ021High Wind, 2019-11-27, $40,000 property; $0 crops (zone total, 2019 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)141 records, 1960 to 202550 kt (58 mph) to 83 kt (96 mph) (median 55 kt (63 mph)); 104 with a recorded value83 kt (96 mph) estimated gust, Thunderstorm Wind, 2009-05-15Thunderstorm Wind, 2024-05-24, $50,000 property; $0 crops (2024 dollars)Event records naming jurisdictions in the plan: Delphi city (23 records), Flora town (12 records), Burlington town (11 records), Camden town (8 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)22 records, 1956 to 2026F/EF0 to F/EF4 (median F/EF1); 21 with a recorded valueF4 tornado, 1976-03-20, 3.6 mi path length (whole path, pre-1996), 300 yd wide, $2,500,000 property; crops not recorded (1976 dollars), 2 direct injuriesNo event record names a jurisdiction in the plan.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)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)35 records, 1996 to 2026 (35 zone-level)Winter Storm, 2010-01-07, $30,000 property; crops not reported (2010 dollars); NWS zone INZ021Countywide (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 and lightning.

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.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 18 declarations covering 14 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
2026-08-252026-08-11DR-4933-INMajor disasterSevere Storms, Straight-Line Winds, Tornadoes, and FloodingInland Flooding (primary); also designated: Strong Wind, Tornadonot yet in FEMA's PA summaries (they cover declarations through 2026-06-30)new since last plan; within last 5 years
2026-08-152026-08-11EM-3651-INEmergencySevere Storms, Straight-Line Winds, Tornadoes, and FloodingInland Flooding (primary); also designated: Strong Wind, Tornadonot yet in FEMA's PA summaries (they cover declarations through 2026-06-30)new since last plan; within last 5 yearssame incident as DR-4933
2026-01-242026-01-23EM-3641-INEmergencySevere Winter StormWinter Weatherno Public Assistance recordednew since last plan; within last 5 years
2020-04-032020-01-20DR-4515-INMajor disasterCOVID-19 PandemicNon-natural, not counted$43,146.39
2020-03-132020-01-20EM-3456-INEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4515
2018-05-042018-02-14DR-4363-INMajor disasterSevere Storms and FloodingInland FloodingPA not declared for this county
2009-04-222009-03-08DR-1832-INMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; TornadoPA not declared for this county
2008-01-302008-01-07DR-1740-INMajor disasterSevere Storms and FloodingInland Flooding$311,496.89
2007-03-122007-02-12EM-3274-INEmergencySnowWinter Weather$24,959.37
2005-09-102005-08-29EM-3238-INEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2005-01-212005-01-01DR-1573-INMajor disasterSevere Winter Storms and FloodingInland Flooding; Winter WeatherPA not declared for this county
2004-06-032004-05-25DR-1520-INMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; TornadoPA not declared for this county
2003-07-112003-07-04DR-1476-INMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; Tornado$284,540.57
2001-01-242000-12-11EM-3162-INEmergencySnowWinter Weather$23,535.57
1999-01-151999-01-01EM-3135-INEmergencyIn-Winter Storm 12/23/98Winter Weather$41,341.87
1991-03-291991-03-12DR-899-INMajor disasterSevere Ice StormIce Stormno Public Assistance recorded
1991-01-051990-12-28DR-891-INMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1977-02-021977-02-02EM-3028-INEmergencySnowstormsWinter Weatherno Public Assistance recorded

School districts and special districts in this county: $3,475.71 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan participants in this county. They have no row of their own in the jurisdiction table, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county), so this line is not added to it.

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
2002-06-132002-04-28DR-1418-INMajor disasterSevere Storms, Tornadoes and FloodingInland Flooding; Tornado
1964-03-171964-03-17DR-162-INMajor disasterSevere Storms & FloodingInland Flooding
1961-05-201961-05-20DR-113-INMajor disasterFloodsInland Flooding
1954-10-261954-10-26DR-30-INMajor 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
Cold Wave6315001996 to 2026-06-30
Drought1411011001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail52202001955 to 2026-06-30
Heat Wave3011001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm2000101996 to 2026-06-30
Inland Flooding50000811996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning3000001996 to 2026-06-30
Strong Wind1485213111955 to 2026-06-30Includes 7 High Wind records.
Tornado22203411950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather35216611996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-09-30Droughtdamage not reported0, 0NWS zone INZ021 (CARROLL), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Drought
2023-08-23Excessive Heat$0 property; $0 crops (zone total, 2023 dollars)0, 0NWS zone INZ021 (CARROLL), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2012-08-09Hail2 indamage not reported0, 0FLORAB1-c worst recorded: Hail
2010-06-06TornadoEF1, 8.96 mi within this county, 100 yd wide$400,000 property; $5,000 crops (2010 dollars)0, 2YOEMAN to ROCKFIELDdeaths or injuries recorded
2010-01-07Winter Storm$30,000 property; crops not reported (zone total, 2010 dollars)0, 0NWS zone INZ021 (CARROLL), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2009-05-15Lightning$100,000 property; $0 crops (2009 dollars)0, 0FLORAB1-c worst recorded: Lightning
2009-05-15Thunderstorm Wind83 kt (96 mph) estimated gustdamage not reported0, 0LEXINGTON to BURLINGTONB1-c worst recorded: Thunderstorm Wind
2008-01-08Flood$12,000,000 property; $0 crops (2008 dollars)0, 0YOEMAN to PITTSBURGB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2003-07-05Flash Flood$7,000,000 property; crops not reported (2003 dollars)2, 0COUNTYWIDEdeaths or injuries recorded
2002-03-09High Wind62 kt (71 mph) estimateddamage not reported0, 0NWS zone INZ021 (CARROLL), zone-levelB1-c worst recorded: High Wind and Strong Wind
1996-02-02Cold/Wind Chilldamage not reported0, 0NWS zone INZ021 (CARROLL), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1976-03-20TornadoF4, 3.6 mi path length (whole path, pre-1996), 300 yd wide$2,500,000 property; crops not recorded (1976 dollars)0, 2location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (335 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
Cold Wave3.68event-days per yearabout 3.68 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)702005-11-12 to 2024-11-12 (19 years)countywide
Drought1.33event-days per yearabout 1.33 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)492000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.0016annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.16%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail4.08events per yearabout 4.08 per yearHighly likelyFEMA annualized frequency (modeled)154.8 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.47event-days per yearabout 4.47 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)632005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0203events per yearabout 1 in 49 yearsPossibleFEMA annualized frequency (modeled)61851 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 Storm0.877event-days per yearabout 0.877 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)591946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding1.43event-days per yearabout 1.43 days per yearLikelyStorm Events event-days in 18 of 30 years, 1996 to 2025 (60%)401996 to 2023 (28 years)see B1-f
Landslide0.0787events per year (modeled)about 1 in 13 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning44.9days per year with a strikeabout 44.9 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind4.96events per yearabout 4.96 per yearHighly likelyFEMA annualized frequency (modeled)1891986 to 2023 (38 years)countywide
Tornado0.292events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.0000147annual probability at a locationchance a given location in the county burns in a year: 0.00147%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 Weather9.53event-days per yearabout 9.53 days per yearLikelyStorm Events event-days in 20 of 30 years, 1996 to 2025 (66.7%)1812005-11-12 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 202515300.5
Hail2.00 in+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202598303.27
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20255300.167
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20256300.2
TornadoEF0-11996 to 20259300.3
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20251300.0333

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
Cold Wave7 of 776.681.486.3Relatively High 6, Relatively Moderate 1
Drought7 of 774.391.896.6Relatively Moderate 3, Relatively Low 3, Very Low 1
Earthquake7 of 731.756.069.2Relatively Low 6, Very Low 1
Hail7 of 775.584.687.3Relatively Moderate 7
Heat Wave7 of 735.843.652.2Relatively Low 7
Hurricane7 of 735.340.345.1Very Low 7
Ice Storm7 of 723.831.939.2Relatively Low 3, Very Low 4
Inland Flooding7 of 739.966.896.5Very High 1, Relatively High 1, Relatively Moderate 4, Relatively Low 1
Landslide7 of 761.884.390.0Relatively Low 5, Very Low 2
Lightning7 of 732.343.346.5Relatively Low 7
Strong Wind7 of 778.885.489.0Relatively High 6, Relatively Moderate 1
Tornado7 of 756.872.477.8Relatively High 1, Relatively Moderate 6
Wildfire7 of 746.151.967.2Very Low 7
Winter Weather7 of 765.671.677.3Relatively Moderate 7

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 plan
Carroll CountyCountyApproved, expires 2029-07-21FMA RL 39, SRL 25; any 85$43,576.270 total; 0 since its plan
Burlington townTownApproved, expires 2029-07-21FMA RL 0, SRL 0; any 0$22,548.8417 total; 0 since its plan
Camden townTownApproved, expires 2029-07-21FMA RL 0, SRL 0; any 0$1,752.7512 total; 0 since its plan
Delphi cityCityApproved, expires 2029-07-21FMA RL 0, SRL 0; any 3$163,31838 total; 2 since its plan
Flora townTownApproved, expires 2029-07-21FMA RL 0, SRL 0; any 0$16,738.9425 total; 0 since its plan
Yeoman townTownApproved, expires 2029-07-21FMA RL 0, SRL 0; any 0no Public Assistance recorded0 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).

School districts and special districts get a plan clock row only.

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 2024-07-22county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Cold Wave$5,908,854,737$321,863,18320,289$577$96,259$1,265,789under 0.0001%
Droughtn/a$136,574,322n/an/a$355,444n/a0.26% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$10,060,195,066n/a20,306$273,891n/a$28,6410.00272%
Hail$5,908,854,737$321,863,18320,289$322,633$59,854$9,0140.00546%
Heat Wave$5,908,854,737$321,863,18320,289$2,044$4$242,086under 0.0001%
Hurricane$5,908,854,737$320,547,60820,289$4,895$13,037$3under 0.0001%
Ice Storm$5,908,854,737n/a20,289$1,063n/a$17,246under 0.0001%
Inland Flooding$5,843,039,624$28,561,302992$7,105,076$257,446$412,396n/a (see note)no Public Assistance recorded (2 declarations)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$96,855,946n/a292$120n/a$1,4450.000124%
Lightning$5,908,854,737n/a20,289$12,426n/a$50,9680.00021%
Strong Wind$5,908,854,737$321,863,18320,289$73,819$2,953$444,0670.00125%$45,000$1,000no Public Assistance recorded (2 declarations)Storm Events damage since the plan includes 1 zone-level High Wind record ($1,000): a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition.
Tornado$5,908,854,737$321,863,18320,289$802,099$2,714$414,9130.0136%$155,000no Public Assistance recorded (2 declarations)
Wildfire$2,290,778,430$71,166,2127,944$2,594$10$2490.000113%
Winter Weather$5,908,854,737$321,863,18320,289$1,324$1,010$45,159under 0.0001%no Public Assistance recorded (1 declaration)

Totals since 2024-07-22 (Storm Events through 2026-06-30): 8 county-coded records, 4 with a damage value recorded (including $0), $200,000; 17 zone-level records, 1 with a damage value recorded (including $0), $1,000 reported for the zone; Public Assistance: none recorded on the 3 counted declarations.

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
Population20,289
Building value (total, not at risk)$5,908,854,737
Agriculture value (total, not at risk)$321,863,183
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$9,391,292
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)$2,931,976
Social vulnerability ratingVery Low
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)39Severe repetitive loss, FMA definition (44 CFR 77.2)25
Repetitive loss, NFIP insurance definition72Severe repetitive loss, NFIP insurance definition9

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 total3925729881146
of which: Carroll County (unincorporated area)3925699851146
of which: Delphi city0030300
Statewide, no county in FEMA's file0060600

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 insuredproperties
Carroll County1800193925699851146
Burlington town1803180000000
Camden town1803190000000
Delphi city1800200030300
Flora town1800210000000
Yeoman town1805580000000

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 residential3825719871146
2 to 4 unit residential0000000
other residential0000000
non-residential1010100
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 13 properties are FMA repetitive loss but not NFIP repetitive loss, and 46 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). Carroll County, IN: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 18015). Automated baseline. https://hazardplain.org/in/18015/ 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: contact@hazardplain.org