Hazard Plain Automated baseline

Miami County, KS

Risk-assessment baseline packet

County FIPS:
20121
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 2029-10-17. Plan: Region J Multi-jurisdictional HMP (FEMA plan 110592), approved 2024-10-18.

Since the plan was approved on 2024-10-18: no new hazard declaration and 51 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 ($7,967,930 a year), Tornado ($3,020,805) and Strong Wind ($1,544,457).

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 2029-10-17
Plan:
Region J Multi-jurisdictional HMP (FEMA plan 110592)
Approved:
2024-10-18
Days to expiry:
1,113

What changed since your last plan (approved 2024-10-18)

New federal declarations:
none
Storm Events records since approval:
51 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 1, SRL 0 (44 CFR 77.2); any definition: 1
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 expiryNotes
Miami CountyCountyApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-07-09
Fontana cityCityApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-07-09
Louisburg cityCityApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-07-09
Osawatomie cityCityApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02
Paola cityCityApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02
Rural Water District #3Water/Sewer AuthorityApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02
USD 367 - OsawatomieSchool/School DistrictApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02
USD 368 - PaolaSchool/School DistrictApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02
USD 416 - LouisburgSchool/School DistrictApproved, expires 2029-10-17Region J Multi-jurisdictional HMP (FEMA plan 110592)2024-10-182029-10-171,113this jurisdiction approved 2025-06-02

Plan 110592 lists 75 other participants not on this page, 44 of them not covered by it yet (named in the Excel file).

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$6,931,309$262,489$774,131$7,967,93055
2TornadoRelatively ModerateRelatively Moderate$1,251,371$3,395$1,766,040$3,020,8058
3Strong WindRelatively ModerateRelatively Moderate$545,997$17,937$980,523$1,544,457128Includes 3 High Wind records (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
4Cold WaveRelatively LowRelatively Moderate$45$144,558$1,391,434$1,536,03710Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
5Heat WaveRelatively LowRelatively Low$635$4$1,408,553$1,409,19216
6HailRelatively ModerateRelatively Moderate$1,126,710$14,357$51,038$1,192,105140
7Ice StormRelatively ModerateRelatively Moderate$84,418n/a$258,466$342,88410
8Winter WeatherRelatively ModerateRelatively High$111,754$97$228,672$340,52338
9LightningRelatively LowRelatively Low$23,030n/a$273,102$296,1325
10EarthquakeVery LowVery Low$96,937n/a$21,546$118,483Storm Events does not record earthquakes.
11DroughtRelatively LowRelatively Lown/a$68,990n/a$68,99020
12WildfireVery LowVery Low$20,972$23$4,955$25,9500No recorded events in Storm Events since 1996 (data through 2026-06-30).
13LandslideVery LowVery Low$121n/a$1,516$1,6370Declared 1 time; no Storm Events record of this type.
14HurricaneNo RatingNo Expected Annual Losses$0$0$0$00No 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 1006.01 (Relatively Low, 56.3); tract 1007 (Relatively Low, 43.5); tract 1004 (Very Low, 38.2)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 1005 (Relatively Low, 91.6); tract 1007 (Relatively Low, 85.6); tract 1004 (Relatively Low, 85.0)
Tornadotract 1006.01 (Very High, 97.4); tract 1007 (Very High, 94.5); tract 1005 (Relatively High, 91.5)
Wildfiretract 1005 (Relatively Low, 80.5); tract 1001 (Relatively Low, 78.4); tract 1002 (Relatively Low, 75.8)

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 1006.01 is Census Tract 1006.01). 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 chill9 records, 1997 to 2025 (9 zone-level)2 days to 22 days (median 4 days); 7 with a recorded valueDecember 2000 (1 monthly summary record), zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2007 (1 zone-level)No crop damage reported in 1 record.Countywide (zone-level records).
DroughtU.S. Drought Monitor scale (D0 to D4)20 records, 2012 to 2024 (20 zone-level)5 days to 274 days (median 96 days); 5 with a recorded value274 days (9 months), 2012-07-01 to 2013-03-31, a run of 9 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)187 records, 1958 to 20260.75 in to 4.5 in (median 1 in); 187 with a recorded value4.5 in hail, 1997-05-17Hail, 1995-04-16, $750,000 property; crops not recorded (1995 dollars)Event records naming jurisdictions in the plan: Paola city (34 records), Osawatomie city (28 records), Louisburg city (25 records), Fontana city (6 records).
Excessive Heat, Heatheat index (in event narratives)16 records, 1999 to 2023 (16 zone-level)1 day to 14 days (median 5 days); 14 with a recorded value14 consecutive days, 1999-07-18 to 1999-07-31, 1 direct death, 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)10 records, 1996 to 2019 (10 zone-level)Ice Storm, 2002-01-30, $5,000 property; crops not reported (2002 dollars); NWS zone KSZ057Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)55 records, 1996 to 2023 (19 zone-level)Flood, 2007-07-01, $16,000,000 property; $1,000,000 crops (2007 dollars)Event records naming jurisdictions in the plan: Osawatomie city (11 records), Paola city (3 records), Fontana city (2 records), Louisburg city (2 records). Zone-level records (19) 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)5 records, 1996 to 2011Lightning, 2004-08-25, $300,000 property; crops not reported (2004 dollars)Event records naming jurisdictions in the plan: Paola city (5 records).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)3 records, 1999 to 2021 (3 zone-level)45 kt (52 mph) to 56 kt (64 mph) (median 52 kt (60 mph)); 3 with a recorded value56 kt (64 mph) measured gust, High Wind, 2021-12-15; NWS zone KSZ057Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)166 records, 1960 to 202650 kt (58 mph) to 75 kt (86 mph) (median 52 kt (60 mph)); 141 with a recorded value75 kt (86 mph), measurement type not recorded, Thunderstorm Wind, 1972-04-30Thunderstorm Wind, 1995-05-16, $70,000 property; crops not recorded (1995 dollars)Event records naming jurisdictions in the plan: Paola city (23 records), Louisburg city (20 records), Osawatomie city (18 records), Fontana city (4 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)22 records, 1957 to 2026F/EF0 to F/EF5 (median F/EF1); 20 with a recorded valueF5 tornado, 1957-05-20, 29.1 mi path length (whole path, pre-1996), 440 yd wide, $2,500,000 property; crops not recorded (1957 dollars), 4 direct deaths, 20 direct injuriesEvent records naming jurisdictions in the plan: Louisburg city (3 records), Fontana city (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)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)38 records, 1997 to 2026 (38 zone-level)Winter Weather, 2019-01-19, $50,000 property; $0 crops (2019 dollars); NWS zone KSZ057Countywide (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.

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: 16 declarations covering 12 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 dollarsNotes
2020-03-292020-01-20DR-4504-KSMajor disasterCOVID-19 PandemicNon-natural, not countednone placed in this county by FEMA's record; $16,404.82 for this declaration is not placed in any county (see the state page)
2020-03-132020-01-20EM-3481-KSEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4504
2019-06-202019-04-28DR-4449-KSMajor disasterSevere Storms, Straight-Line Winds, Tornadoes, Flooding,Landslides,and MudslidesInland Flooding; Landslide; Strong Wind; Tornado$71,924.22
2015-07-202015-05-04DR-4230-KSMajor disasterSevere Storms, Tornadoes, Straight-Line Winds, and FloodingInland Flooding; Strong Wind; Tornadono Public Assistance recorded
2010-08-102010-06-07DR-1932-KSMajor disasterSevere Storms, Flooding, and TornadoesInland Flooding; Tornado$69,608.78
2010-03-092009-12-22DR-1885-KSMajor disasterSevere Winter Storms and SnowstormWinter Weather$266,096.80
2008-02-012007-12-06DR-1741-KSMajor disasterSevere Winter StormsWinter Weather$10,764.86
2007-12-122007-12-06EM-3282-KSEmergencySevere Winter StormsWinter Weatherno Public Assistance recordedsame incident as DR-1741
2007-07-022007-06-26DR-1711-KSMajor disasterSevere Storms and FloodingInland Flooding$1,124,852.60
2005-09-102005-09-01EM-3236-KSEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2003-05-062003-05-04DR-1462-KSMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; Tornadono Public Assistance recorded
2002-02-062002-01-29DR-1402-KSMajor disasterSevere Winter Ice StormIce Storm$815,339.58
1973-09-281973-09-28DR-403-KSMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1973-05-021973-05-02DR-378-KSMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1969-07-151969-07-15DR-267-KSMajor disasterTornadoes, Severe Storms & FloodingTornado (primary); also designated: Inland Floodingno Public Assistance recorded
1967-07-181967-07-18DR-229-KSMajor disasterTornadoes, Severe Storms & FloodingTornado (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
1982-06-281982-06-28DR-663-KSMajor disasterSevere Storms and FloodingInland Flooding
1958-11-061958-11-06DR-88-KSMajor disasterFloodsInland Flooding
1957-09-051957-09-05DR-81-KSMajor disasterFloodsInland Flooding
1955-05-271955-05-27DR-34-KSMajor disasterTornadoTornado

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.

Public Assistance not placed in any Kansas county: 4 rows, $183,565.84; listed on the Kansas state page.

Source: 3

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 Wave10102001996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought20107001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail18720022001955 to 2026-06-30
Heat Wave16001001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm10000101996 to 2026-06-30
Inland Flooding55001901996 to 2026-06-30
Landslide0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning5000001996 to 2026-06-30
Strong Wind169261241201955 to 2026-06-30Includes 3 High Wind records.
Tornado22103701950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather38203201996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2021-12-15High Wind56 kt (64 mph) measured gustdamage not reported0, 0NWS zone KSZ057 (MIAMI), zone-levelwithin last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2019-01-19Winter Weather$50,000 property; $0 crops (zone total, 2019 dollars)0, 0NWS zone KSZ057 (MIAMI), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2018-10-10Flood$0 property; $0 crops (2018 dollars)1, 0PAOLAdeaths or injuries recorded
2017-08-22Flash Flood$0 property; $0 crops (2017 dollars)1, 0NEW LANCASTERdeaths or injuries recorded
2007-07-01Flood$16,000,000 property; $1,000,000 crops (2007 dollars)0, 0STANTONB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2004-08-25Lightning$300,000 property; crops not reported (2004 dollars)0, 0PAOLAB1-c worst recorded: Lightning
2002-01-30Ice Storm$5,000 property; crops not reported (zone total, 2002 dollars)0, 0NWS zone KSZ057 (MIAMI), zone-levelB1-c worst recorded: Ice Storm
2000-12-10Extreme Cold/Wind Chilldamage not reported0, 0NWS zone KSZ057 (MIAMI), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1999-07-18Heatdamage not reported1, 0NWS zone KSZ057 (MIAMI), zone-levelB1-c worst recorded: Excessive Heat, Heat
1997-05-17Hail4.5 indamage not reported0, 0PAOLA to HILLSDALEB1-c worst recorded: Hail
1972-04-30Thunderstorm Wind75 kt (86 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Thunderstorm Wind
1957-05-20TornadoF5, 29.1 mi path length (whole path, pre-1996), 440 yd wide$2,500,000 property; crops not recorded (1957 dollars)4, 20location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (532 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 Wave2.05event-days per yearabout 2.05 days per yearLikelyStorm Events event-days in 6 of 30 years, 1996 to 2025 (20%)392005-11-12 to 2024-11-12 (19 years)countywide
Drought3.61event-days per yearabout 3.61 days per yearLikelyStorm Events event-days in 6 of 30 years, 1996 to 2025 (20%)1892000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00105annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.105%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail9events per yearabout 9 per yearHighly likelyFEMA annualized frequency (modeled)342.4 (modeled)1986 to 2023 (38 years)countywide
Heat Wave15.1event-days per yearabout 15.1 days per yearLikelyStorm Events event-days in 11 of 30 years, 1996 to 2025 (36.7%)1822005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0events per yearnone modeledUnlikelyFEMA annualized frequency (modeled)01851 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 Storm0.883event-days per yearabout 0.883 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)601946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding1.64event-days per yearabout 1.64 days per yearLikelyStorm Events event-days in 19 of 30 years, 1996 to 2025 (63.3%)461996 to 2023 (28 years)see B1-f
Landslide0.126events per year (modeled)about 1 in 8 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning52.3days per year with a strikeabout 52.3 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind6.79events per yearabout 6.79 per yearHighly likelyFEMA annualized frequency (modeled)2591986 to 2023 (38 years)countywide
Tornado0.379events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000441annual probability at a locationchance a given location in the county burns in a year: 0.0441%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 Weather10.9event-days per yearabout 10.9 days per yearLikelyStorm Events event-days in 19 of 30 years, 1996 to 2025 (63.3%)2082005-11-12 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 202573302.43
Hail2.00 in+1996 to 20256300.2
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202597303.23
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202516300.533
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20255300.167
TornadoEF0-11996 to 20257300.233
TornadoEF2-31996 to 20250300
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
Cold Wave8 of 860.980.088.5Relatively High 5, Relatively Moderate 3
Drought8 of 877.985.390.8Relatively Low 7, Very Low 1
Earthquake8 of 812.028.756.3Relatively Low 2, Very Low 6
Hail8 of 882.792.697.6Relatively High 7, Relatively Moderate 1
Heat Wave8 of 868.288.394.3Relatively High 5, Relatively Moderate 3
Hurricane0 of 8No Rating 8
Ice Storm8 of 881.890.895.9Relatively High 4, Relatively Moderate 4
Inland Flooding8 of 824.158.991.3Relatively High 3, Relatively Moderate 3, Relatively Low 2
Landslide8 of 871.382.691.6Relatively Low 5, Very Low 3
Lightning8 of 855.883.394.2Relatively High 5, Relatively Moderate 3
Strong Wind8 of 885.996.099.0Very High 4, Relatively High 4
Tornado8 of 865.087.497.4Very High 2, Relatively High 5, Relatively Moderate 1
Wildfire8 of 865.274.980.5Relatively Low 7, Very Low 1
Winter Weather8 of 889.097.299.2Very High 5, Relatively High 3

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
Miami CountyCountyApproved, expires 2029-10-17FMA RL 1, SRL 0; any 1$837,265.290 total; 0 since its plan
Fontana cityCityApproved, expires 2029-10-17FMA RL 0, SRL 0; any 0$39,032.5613 total; 1 since its plan
Louisburg cityCityApproved, expires 2029-10-17FMA RL 0, SRL 0; any 0$64,918.0950 total; 3 since its plan
Osawatomie cityCityApproved, expires 2029-10-17FMA RL 0, SRL 0; any 0$514,127.5657 total; 4 since its plan
Paola cityCityApproved, expires 2029-10-17FMA RL 0, SRL 0; any 0$217,325.8265 total; 6 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 2024-10-18county-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$8,278,020,484$92,470,52034,178$45$144,558$1,391,434under 0.0001%
Droughtn/a$47,975,374n/an/a$68,990n/a0.144% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$13,913,093,291n/a34,191$96,937n/a$21,5460.000697%
Hail$8,278,020,484$92,470,52034,178$1,126,710$14,357$51,0380.0136%$100,000
Heat Wave$8,278,020,484$92,470,52034,178$635$4$1,408,553under 0.0001%
Hurricane$8,278,020,484$92,470,52034,178$0$0$00%
Ice Storm$8,278,020,484n/a34,178$84,418n/a$258,4660.00102%
Inland Flooding$8,269,307,882$14,079,241383$6,931,309$262,489$774,131n/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$60,748,204n/a212$121n/a$1,5160.000199%
Lightning$8,278,020,484n/a34,178$23,030n/a$273,1020.000278%
Strong Wind$8,278,020,484$92,470,52034,178$545,997$17,937$980,5230.0066%$0
Tornado$8,278,020,484$92,470,52034,178$1,251,371$3,395$1,766,0400.0151%
Wildfire$1,548,989,307$20,879,2147,794$20,972$23$4,9550.00135%
Winter Weather$8,278,020,484$92,470,52034,178$111,754$97$228,6720.00135%

Totals since 2024-10-18 (Storm Events through 2026-06-30): 47 county-coded records, 4 with a damage value recorded (including $0), $100,000; 4 zone-level records, 0 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.

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
Population34,178
Building value (total, not at risk)$8,278,020,484
Agriculture value (total, not at risk)$92,470,520
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$10,705,149
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)$7,159,976
Social vulnerability ratingVery Low
Community resilience ratingVery 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)1Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition1Severe repetitive loss, NFIP insurance definition0

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 total1010100
of which: Miami County (unincorporated area)1010100
Statewide, no county in FEMA's file0010100

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
Miami County2002201010100
Fontana city2002210000000
Louisburg city2002220000000
Osawatomie city2002230000000
Paola city2002240000000

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 residential1010100
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
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 0 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). Miami County, KS: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 20121). Automated baseline. https://hazardplain.org/ks/20121/ 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]