Wyandotte County, KS: risk-assessment baseline packet, release 2026-10

Summary

Plan status as of 2026-09-30: Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible. Plan: Region L (FEMA plan 110182), pending adoption here, approved 2024-11-08 by FEMA; not yet adopted here.

Update: FEMA tracker shows a plan approvable pending adoption.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($21,656,801 a year), Tornado ($15,284,683) and Cold Wave ($10,408,347).

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.

Terms used

EAL:: expected annual loss: FEMA's modeled average yearly loss from a hazard.
NRI:: FEMA's National Risk Index (version 1.20, December 2025).
NFIP:: National Flood Insurance Program.
RL, SRL:: repetitive loss and severe repetitive loss: flood-insured properties with repeated claims (definitions in B2-c).
FMA, HMGP:: Flood Mitigation Assistance and Hazard Mitigation Grant Program, FEMA mitigation grants.
PA:: FEMA Public Assistance: disaster aid to governments and some nonprofits.
Zone-level:: NOAA logged the event for a National Weather Service forecast zone, which may include parts of neighboring counties.
County-coded:: NOAA logged the event to this county.
FIPS:: the federal code for a place; 20209 is this area.
D0 to D4:: U.S. Drought Monitor categories, from abnormally dry (D0) to exceptional drought (D4).
F/EF, EFU:: Fujita and Enhanced Fujita tornado ratings; EFU is an unrated tornado.
kt, CONUS:: knots (1 kt is about 1.15 mph); the contiguous United States.
CFR:: Code of Federal Regulations.
A4-a, E1-a:: other items of FEMA's Local Mitigation Plan Review Tool (sources, and changes since the last plan).
Dollars:: nominal (as reported, labeled with the year), not adjusted for inflation.

Plan clock

Status:: Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible
Plan:: Region L (FEMA plan 110182), pending adoption here
Approved:: 2024-11-08 by FEMA; not yet adopted here
Expires:: 2029-11-07 once adopted
Update underway:: FEMA tracker shows a plan approvable pending adoption

Not yet eligible: adopt the approved plan.

What changed since your last plan

Not available. Plan 110182 was approved by FEMA on 2024-11-08 but is not yet adopted here, so no since-plan counts are given.

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

Plan status for every jurisdiction listed in this county: 17 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

Jurisdiction	Type	Status	Plan	Approved	Expires	Days to expirynegative = days since expiry	Update underway	Notes
Wyandotte County	County	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Bonner Springs city	City	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Edwardsville city	City	Approved, expires 2029-11-07	Region L (FEMA plan 110182)	2024-11-08	2029-11-07	1,134		this jurisdiction approved 2025-08-04
Kansas City city	City	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Bonner Springs Unified School District 204	School/School District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Kansas City Unified School District 500	School/School District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Piper-Kansas City Unified School District 203	School/School District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Turner Unified School District 202	School/School District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Fairfax Drainage District	Flood Control District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Heart of America Boy Scouts	Other	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Kansas City Kansas Community College	College/University	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Kansas State School for the Deaf and Blind (Blind)	School/School District	Approved, expires 2029-11-07	Region L (FEMA plan 110182)	2024-11-08	2029-11-07	1,134		this jurisdiction approved 2025-06-25
Kansas University Medical Center	Hospital/Medical Facility	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Kaw Valley Drainage District	Flood Control District	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
Unified Government Health Department	Hospital/Medical Facility	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
University of Kansas Hospital	Hospital/Medical Facility	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.
WaterOne	Water/Sewer Authority	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	Region L (FEMA plan 110182), pending adoption here	2024-11-08 by FEMA; not yet adopted here	2029-11-07 once adopted		FEMA tracker shows a plan approvable pending adoption	Not yet eligible: adopt the approved plan.

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 EAL	Hazard	NRI risk rating	EAL rating	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL total (see note)modeled dollars per year	Storm Events records, 1996 to 2026-06-30count	Storm Events coverage note
1	Inland Flooding	Relatively Moderate	Relatively Moderate	$21,524,614	$57,254	$74,933	$21,656,801	53
2	Tornado	Relatively High	Relatively High	$6,660,646	$270	$8,623,767	$15,284,683	3
3	Cold Wave	Relatively High	Relatively High	$2,261	$512	$10,405,574	$10,408,347	10	Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
4	Heat Wave	Relatively High	Relatively Moderate	$20,989	under $1	$7,934,213	$7,955,202	19
5	Strong Wind	Very High	Relatively High	$1,924,018	$1,203	$3,873,909	$5,799,131	135	Includes 5 High Wind records (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
6	Hail	Relatively High	Relatively High	$3,039,079	$2,791	$262,837	$3,304,706	124
7	Ice Storm	Very High	Relatively High	$311,033	n/a	$1,180,971	$1,492,004	9
8	Winter Weather	Very High	Very High	$435,517	$7	$695,568	$1,131,092	42
9	Lightning	Relatively High	Relatively Moderate	$54,102	n/a	$832,444	$886,547	1
10	Earthquake	Relatively Low	Relatively Low	$389,812	n/a	$107,200	$497,012		Storm Events does not record earthquakes.
11	Wildfire	Very Low	Very Low	$29,036	$1	$2,857	$31,894	0	No recorded events in Storm Events since 1996 (data through 2026-06-30).
12	Drought	Relatively Low	Very Low	n/a	$24,858	n/a	$24,858	21
13	Landslide	Relatively Low	Relatively Low	$1,843	n/a	$7,698	$9,540	0	Declared 1 time; no Storm Events record of this type.
14	Hurricane	No Rating	No Expected Annual Losses	$0	$0	$0	$0	0	No 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

Hazard	Highest-rated census tractsNRI risk rating, score 0 to 100
Earthquake	tract 452 (Relatively Low, 61.9); tract 428 (Relatively Low, 46.1); tract 9800 (Relatively Low, 45.1)
Hurricane	no tract has a National Risk Index rating for this hazard
Landslide	tract 446.01 (Relatively Low, 94.6); tract 448.04 (Relatively Low, 93.4); tract 448.07 (Relatively Low, 92.7)
Tornado	tract 436 (Very High, 97.8); tract 439.04 (Very High, 97.6); tract 429 (Very High, 96.3)
Wildfire	tract 439.05 (Relatively Low, 77.9); tract 439.04 (Relatively Low, 77.8); tract 448.04 (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 452 is Census Tract 452). 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

Hazard	Scale	Recordscount and years	Observed range	Worst recorded event	Most damaging (when different)	How it applies to jurisdictions	Note
Cold/Wind Chill, Extreme Cold/Wind Chill	wind chill	9 records, 1997 to 2025 (9 zone-level)	1 day to 22 days (median 4 days); 7 with a recorded value	December 2000 (1 monthly summary record), zone-level		Countywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)	crop damage	1 record, 2007 (1 zone-level)		No crop damage reported in 1 record.		Countywide (zone-level records).
Drought	U.S. Drought Monitor scale (D0 to D4)	21 records, 2012 to 2025 (21 zone-level)	5 days to 243 days (median 64 days); 6 with a recorded value	243 days (8 months), 2012-07-01 to 2013-02-28, a run of 8 consecutive Storm Events drought records, zone-level		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.
Earthquake	Modified Mercalli (local data)	0					Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	hail size (inches)	188 records, 1955 to 2026	0.75 in to 3 in (median 1 in); 186 with a recorded value	3 in hail, 2026-03-10	Hail, 2006-03-12, $150,000 property; crops not reported (2006 dollars)	Event records naming jurisdictions in the plan: Kansas City city (37 records), Bonner Springs city (23 records), Edwardsville city (13 records).
Excessive Heat, Heat	heat index (in event narratives)	19 records, 1999 to 2023 (19 zone-level)	1 day to 14 days (median 5 days); 16 with a recorded value	14 consecutive days, 1999-07-18 to 1999-07-31, zone-level		Countywide (zone-level records).
Hurricane, Tropical Storm, Tropical Depression	Saffir-Simpson	0					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 Storm	Sperry-Piltz ice scale (local data)	9 records, 1997 to 2019 (9 zone-level)		Ice Storm, 2002-01-30, $3,500,000 property; crops not reported (2002 dollars); NWS zone KSZ104		Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flood	damage and flood days (flood depth: FIRM)	53 records, 1996 to 2025 (11 zone-level)		Flash Flood, 1998-10-04, $2,000,000 property; crops not reported (1998 dollars)		Event records naming jurisdictions in the plan: Kansas City city (21 records), Bonner Springs city (4 records). Zone-level records (11) 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 Flow	none (count and damage only)	0
Lightning	annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)	1 record, 2007		Lightning, 2007-02-28, $5,000 property; $0 crops (2007 dollars)		Event records naming jurisdictions in the plan: Bonner Springs 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)	5 records, 1996 to 2021 (5 zone-level)	48 kt (55 mph) to 56 kt (64 mph) (median 52 kt (60 mph)); 5 with a recorded value	56 kt (64 mph) measured gust, High Wind, 2021-12-15; NWS zone KSZ104		Countywide (zone-level records).
Thunderstorm Wind	wind speed (kt and mph)	196 records, 1956 to 2025	50 kt (58 mph) to 99 kt (114 mph) (median 52 kt (60 mph)); 167 with a recorded value	99 kt (114 mph), measurement type not recorded, Thunderstorm Wind, 1956-06-27; same speed and measurement basis also recorded on 1956-06-27	Thunderstorm Wind, 1994-07-01, $500,000 property; crops not recorded (1994 dollars)	Event records naming jurisdictions in the plan: Kansas City city (48 records), Bonner Springs city (14 records), Edwardsville city (9 records).
Tornado	Enhanced Fujita (Fujita before Feb 2007)	11 records, 1958 to 2008	F/EF0 to F/EF4 (median between F/EF1 and F/EF2); 10 with a recorded value	F4 tornado, 2003-05-04, 15 mi within this county, 500 yd wide, $15,500,000 property; crops not reported (2003 dollars), 2 direct deaths, 30 direct injuries		Event records naming jurisdictions in the plan: Bonner Springs city (3 records).	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).
Wildfire	acres burned (local data)	0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet	none in data (snowfall: local data)	42 records, 1996 to 2026 (42 zone-level)		Heavy Snow, 1996-10-22, $250,000 property; crops not reported (1996 dollars); NWS zone KSZ104		Countywide (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: 26 declarations covering 22 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Plan 110182 was approved by FEMA on 2024-11-08 but is not yet adopted here, so no since-plan counts are given.

Federal disaster declarations for this county

Sources: 1, 2, 3

Declared	Incident began	FEMA number	Type	Title	Mapped hazard	County Public Assistancefederal share obligated, nominal dollars	Flags	Notes
2025-12-19	2025-07-17	DR-4897-KS	Major disaster	Severe Storms, Straight-Line Winds, and Flooding	Inland Flooding; Strong Wind; Tornado	no Public Assistance recorded	within last 5 years
2024-08-20	2024-05-19	DR-4811-KS	Major disaster	Severe Storm, Straight-Line Winds, Tornadoes, and Flooding	Inland Flooding; Strong Wind; Tornado	$795,438.65	within last 5 years
2023-10-26	2023-07-14	DR-4747-KS	Major disaster	Severe Storms, Straight-Line Winds, Tornadoes, and Flooding	Inland Flooding; Strong Wind; Tornado	$1,727,612.36	within last 5 years
2022-02-17	2021-12-15	DR-4640-KS	Major disaster	Severe Storms and Straight Line Winds	Strong Wind	$985,126.64	within last 5 years
2020-03-29	2020-01-20	DR-4504-KS	Major disaster	COVID-19 Pandemic	Non-natural, not counted	$23,815,605.14
2020-03-13	2020-01-20	EM-3481-KS	Emergency	COVID-19	Non-natural, not counted	no Public Assistance recorded		same incident as DR-4504
2019-06-20	2019-04-28	DR-4449-KS	Major disaster	Severe Storms, Straight-Line Winds, Tornadoes, Flooding,Landslides,and Mudslides	Inland Flooding; Landslide; Strong Wind; Tornado	$2,117,355.42
2017-11-07	2017-07-22	DR-4347-KS	Major disaster	Severe Storms, Straight-Line Winds, and Flooding	Inland Flooding; Strong Wind	$2,098,918.91
2011-09-23	2011-06-01	DR-4035-KS	Major disaster	Flooding	Inland Flooding	$667,126.96
2011-06-25	2011-06-01	EM-3324-KS	Emergency	Flooding	Inland Flooding	no Public Assistance recorded		same incident as DR-4035
2010-03-09	2009-12-22	DR-1885-KS	Major disaster	Severe Winter Storms and Snowstorm	Winter Weather	$204,640.36
2007-12-12	2007-12-06	EM-3282-KS	Emergency	Severe Winter Storms	Winter Weather	no Public Assistance recorded
2006-04-13	2006-03-12	DR-1638-KS	Major disaster	Severe Storms, Tornadoes, and Straight Line Winds	Strong Wind; Tornado	$430,106.96
2005-09-10	2005-09-01	EM-3236-KS	Emergency	Hurricane Katrina Evacuation	Hurricane: evacuation support, not a local hazard event; not counted	no Public Assistance recorded
2005-02-08	2005-01-04	DR-1579-KS	Major disaster	Severe Winter Storms, Heavy Rains, and Flooding	Inland Flooding; Winter Weather	$653,430.71
2004-09-30	2004-08-27	DR-1562-KS	Major disaster	Severe Storms, Flooding, and Tornadoes	Inland Flooding; Tornado	$1,317,607.07
2004-08-03	2004-06-12	DR-1535-KS	Major disaster	Severe Storms, Flooding, and Tornadoes	Inland Flooding; Tornado	$3,826,170.65
2003-05-06	2003-05-04	DR-1462-KS	Major disaster	Severe Storms, Tornadoes, and Flooding	Inland Flooding; Tornado	$4,223,874.33
2002-02-06	2002-01-29	DR-1402-KS	Major disaster	Severe Winter Ice Storm	Ice Storm	$3,586,964.29
1998-11-05	1998-10-30	DR-1258-KS	Major disaster	Ks-Flooding 10/31/98	Inland Flooding	PA not declared for this county
1998-10-14	1998-10-01	DR-1254-KS	Major disaster	Severe Storms, Flooding and Tornadoes	Inland Flooding; Tornado	no Public Assistance recorded
1993-07-22	1993-06-28	DR-1000-KS	Major disaster	Severe Storms & Flooding	Inland Flooding	no Public Assistance recorded
1977-09-20	1977-09-20	DR-539-KS	Major disaster	Severe Storms & Flooding	Inland Flooding	no Public Assistance recorded
1973-09-28	1973-09-28	DR-403-KS	Major disaster	Severe Storms, Tornadoes & Flooding	Inland Flooding; Tornado	no Public Assistance recorded
1973-05-02	1973-05-02	DR-378-KS	Major disaster	Severe Storms & Flooding	Inland Flooding	no Public Assistance recorded
1969-07-15	1969-07-15	DR-267-KS	Major disaster	Tornadoes, Severe Storms & Flooding	Tornado (primary); also designated: Inland Flooding	no Public Assistance recorded

School districts and special districts in this county: $2,683.50 (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

Declared	Incident began	FEMA number	Type	Title	Mapped hazard
1982-06-28	1982-06-28	DR-663-KS	Major disaster	Severe Storms and Flooding	Inland Flooding
1958-11-06	1958-11-06	DR-88-KS	Major disaster	Floods	Inland Flooding
1957-09-05	1957-09-05	DR-81-KS	Major disaster	Floods	Inland Flooding
1955-05-27	1955-05-27	DR-34-KS	Major disaster	Tornado	Tornado

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

Hazard	Storm Events records, all years on file(years in the Period column)	Last 5 yearsrecords	Declared incidents, all yearsseparate disasters	Period	Statement
Cold Wave	10	2	0	1996 to 2026-06-30	Includes 1 Frost/Freeze record.
Drought	21	9	0	1996 to 2026-06-30
Earthquake	0	0	0		Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	188	24	0	1955 to 2026-06-30
Heat Wave	19	1	0	1996 to 2026-06-30
Hurricane	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm	9	0	1	1996 to 2026-06-30
Inland Flooding	53	1	17	1996 to 2026-06-30
Landslide	0	0	1	1996 to 2026-06-30	No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning	1	0	0	1996 to 2026-06-30
Strong Wind	201	63	7	1955 to 2026-06-30	Includes 5 High Wind records.
Tornado	11	0	11	1950 to 2026-06-30
Wildfire	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather	42	2	3	1996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

Date	Event type	Magnitude or extent	Damagenominal dollars	Deaths, injuriesdirect only	Location	Flags	Why listed
2026-03-10	Hail	3 in	damage not reported	0, 0	POMEROY	within last 5 years	B1-c worst recorded: Hail
2021-12-15	High Wind	56 kt (64 mph) measured gust	damage not reported	0, 0	NWS zone KSZ104 (WYANDOTTE), zone-level	within last 5 years	B1-c worst recorded: High Wind and Strong Wind
2007-02-28	Lightning		$5,000 property; $0 crops (2007 dollars)	0, 0	BONNER SPGS		B1-c worst recorded: Lightning
2005-07-21	Heat		damage not reported	1, 0	NWS zone KSZ104 (WYANDOTTE), zone-level		deaths or injuries recorded
2003-05-04	Tornado	F4, 15 mi within this county, 500 yd wide	$15,500,000 property; crops not reported (2003 dollars)	2, 30	BONNER SPGS		deaths or injuries recorded
2002-01-30	Ice Storm		$3,500,000 property; crops not reported (zone total, 2002 dollars)	0, 0	NWS zone KSZ104 (WYANDOTTE), zone-level		B1-c worst recorded: Ice Storm
2000-12-10	Extreme Cold/Wind Chill		damage not reported	0, 0	NWS zone KSZ104 (WYANDOTTE), zone-level		B1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1999-07-18	Heat		damage not reported	0, 0	NWS zone KSZ104 (WYANDOTTE), zone-level		B1-c worst recorded: Excessive Heat, Heat
1998-10-04	Flash Flood		$2,000,000 property; crops not reported (1998 dollars)	0, 0	KANSAS CITY		B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
1996-10-22	Heavy Snow		$250,000 property; crops not reported (zone total, 1996 dollars)	0, 0	NWS zone KSZ104 (WYANDOTTE), zone-level		B1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1961-05-07	Tornado	F4, 2.7 mi path length (whole path, pre-1996), 150 yd wide	$2,500,000 property; crops not recorded (1961 dollars)	0, 12	location not recorded		deaths or injuries recorded
1956-06-27	Thunderstorm Wind	99 kt (114 mph), measurement type not recorded	damage not recorded (pre-1996 record)	0, 0	location not recorded		B1-c worst recorded: Thunderstorm Wind

The full list is in the Excel file, sheet "B1-d Storm Events history" (555 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

Hazard	FEMA annualized frequency (modeled)unit per row	Unit	In plain terms	Descriptor	Descriptor basis	NRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)	NRI period	Location	Note
Cold Wave	2.32	event-days per year	about 2.32 days per year	Likely	Storm Events event-days in 6 of 30 years, 1996 to 2025 (20%)	44	2005-11-12 to 2024-11-12 (19 years)	countywide
Drought	11.7	event-days per year	about 11.7 days per year	Likely	Storm Events event-days in 7 of 30 years, 1996 to 2025 (23.3%)	364	2000 to 2025 (25.25 years; D3 and D4 only)	countywide
Earthquake	0.000825	annual probability at a location	chance a given location in the county has at least minor-damage shaking in a year: 0.0825%			not shown	modeled	see B1-f	No descriptor (Storm Events does not record earthquakes).
Hail	9.06	events per year	about 9.06 per year	Highly likely	FEMA annualized frequency (modeled)	344.3 (modeled)	1986 to 2023 (38 years)	countywide
Heat Wave	14.9	event-days per year	about 14.9 days per year	Likely	Storm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)	169	2005-11-12 to 2024-11-12 (19 years)	countywide
Hurricane	0	events per year	none modeled	Unlikely	FEMA annualized frequency (modeled)	0	1851 to 2024 (Atlantic)	see B1-f	NRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm	0.961	event-days per year	about 0.961 days per year	Likely	Storm Events event-days in 8 of 30 years, 1996 to 2025 (26.7%)	65	1946-12-31 to 2014-02-12 (67 years)	countywide
Inland Flooding	1.46	event-days per year	about 1.46 days per year	Likely	Storm Events event-days in 16 of 30 years, 1996 to 2025 (53.3%)	41	1996 to 2023 (28 years)	see B1-f
Landslide	0.119	events per year (modeled)	about 1 in 8 years	Likely	FEMA annualized frequency (modeled)	not shown	modeled	see B1-f
Lightning	50.3	days per year with a strike	about 50.3 days per year	Highly likely	FEMA annualized frequency (modeled)	not shown	1995 to 2023 (29 years; CONUS)	countywide
Strong Wind	6.91	events per year	about 6.91 per year	Highly likely	FEMA annualized frequency (modeled)	263	1986 to 2023 (38 years)	countywide
Tornado	0.108	events per year	about 1 in 9 years	Likely	FEMA annualized frequency (modeled)	not shown	1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)	see B1-f
Wildfire	0.0000865	annual probability at a location	chance a given location in the county burns in a year: 0.00865%		Storm Events records in 0 of 30 years, 1996 to 2025 (0%)	not shown	modeled	see B1-f	No descriptor: no Storm Events record 1996 to 2025
Winter Weather	11	event-days per year	about 11 days per year	Likely	Storm Events event-days in 19 of 30 years, 1996 to 2025 (63.3%)	209	2005-11-12 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

Unit	Descriptor	Definition
events per year	Highly likely	1 or more per year
events per year	Likely	about once in 1 to 10 years
events per year	Possible	about once in 10 to 100 years
events per year	Unlikely	less than once in 100 years
annual probability	Likely	10% to under 100% chance in a given year
annual probability	Possible	1% to under 10% chance in a given year
annual probability	Unlikely	under 1% chance in a given year
event-days (share of years)	Highly likely	event-days recorded in 90% or more of years
event-days (share of years)	Likely	event-days recorded in 10% to under 90% of years
event-days (share of years)	Possible	event-days recorded in some years but under 10% of years
lightning strike-days	Highly likely	cloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

Hazard	Band	Years	Eventscounty-coded records	Years in period	Events per yearevents / years
Hail	1.00-1.99 in	1996 to 2025	70	30	2.33
Hail	2.00 in+	1996 to 2025	10	30	0.333
Thunderstorm Wind (counted as NRI Strong Wind)	50-64 kt	1996 to 2025	120	30	4
Thunderstorm Wind (counted as NRI Strong Wind)	65 kt+	1996 to 2025	9	30	0.3
Thunderstorm Wind (counted as NRI Strong Wind)	unmeasured or below 50 kt	1996 to 2025	1	30	0.0333
Tornado	EF0-1	1996 to 2025	2	30	0.0667
Tornado	EF2-3	1996 to 2025	0	30	0
Tornado	EF4-5	1996 to 2025	1	30	0.0333
Tornado	unrated (EFU)	1996 to 2025	0	30	0

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

Hazard	Tractsrated of all	NRI risk score, 0 to 100			Tracts by rating
Hazard	Tractsrated of all	Min	Median	Max	Tracts by rating
Cold Wave	64 of 64	15.8	80.1	96.7	Very High 2, Relatively High 32, Relatively Moderate 23, Relatively Low 1, Very Low 6
Drought	14 of 64	67.1	77.5	84.8	Relatively Low 7, Very Low 7, No Rating 50
Earthquake	64 of 64	0.8	17.9	61.9	Relatively Low 5, Very Low 59
Hail	64 of 64	26.2	80.1	96.4	Relatively High 13, Relatively Moderate 43, Relatively Low 6, Very Low 2
Heat Wave	64 of 64	1.6	85.1	96.5	Relatively High 34, Relatively Moderate 23, Very Low 7
Hurricane	0 of 64				No Rating 64
Ice Storm	64 of 64	2.0	85.7	95.7	Relatively High 18, Relatively Moderate 41, Relatively Low 2, Very Low 3
Inland Flooding	64 of 64	0.5	12.0	91.5	Relatively High 5, Relatively Moderate 6, Relatively Low 16, Very Low 37
Landslide	64 of 64	15.8	67.3	94.6	Relatively Low 14, Very Low 50
Lightning	64 of 64	0.3	57.0	91.9	Relatively High 6, Relatively Moderate 36, Relatively Low 15, Very Low 7
Strong Wind	64 of 64	9.1	88.5	98.6	Very High 7, Relatively High 40, Relatively Moderate 13, Relatively Low 2, Very Low 2
Tornado	64 of 64	6.3	77.3	97.8	Very High 10, Relatively High 28, Relatively Moderate 22, Relatively Low 2, Very Low 2
Wildfire	56 of 64	19.1	51.7	77.9	Relatively Low 5, Very Low 51, No Rating 8
Winter Weather	64 of 64	18.0	90.5	98.4	Very High 13, Relatively High 43, Relatively Moderate 6, Relatively Low 1, Very Low 1

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

Jurisdiction	Type	Plan status	Repetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definition	Public Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollars	Event records naming this placeall years; since its plan	Notes
Wyandotte County	County	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	FMA RL 0, SRL 0; any 0	no Public Assistance recorded	0 total; no approved plan
Bonner Springs city	City	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	FMA RL 3, SRL 0; any 8	$197,157.94	45 total; no approved plan	Includes $4,011.75 for declarations not counted as hazard incidents (DR-4504-KS).
Edwardsville city	City	Approved, expires 2029-11-07	FMA RL 0, SRL 0; any 2	$518,183.43	22 total; 3 since its plan	Includes $18,742.29 for declarations not counted as hazard incidents (DR-4504-KS).
Kansas City city	City	Plan 110182 approved 2024-11-08, pending adoption here; not yet eligible	FMA RL 3, SRL 11; any 37	no Public Assistance recorded	106 total; no approved 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.

Plan 110182 was approved by FEMA on 2024-11-08 but is not yet adopted here, so no since-plan counts are given.

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

Hazard	Building exposuremodeled dollars	Agriculture exposuremodeled dollars	Population exposedpeople	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL as % of exposurebuildings; agriculture where noted	Note
Cold Wave	$36,857,210,670	$6,790,390	169,235	$2,261	$512	$10,405,574	under 0.0001%
Drought	n/a	$5,179,673	n/a	n/a	$24,858	n/a	0.48% (agriculture)	NRI has no building exposure for this hazard; agriculture shown
Earthquake	$67,596,877,628	n/a	169,245	$389,812	n/a	$107,200	0.000577%
Hail	$36,857,210,670	$6,790,390	169,235	$3,039,079	$2,791	$262,837	0.00825%
Heat Wave	$36,857,210,670	$6,790,390	169,235	$20,989	under $1	$7,934,213	under 0.0001%
Hurricane	$36,857,210,670	$6,790,390	169,235	$0	$0	$0	0%
Ice Storm	$36,852,212,831	n/a	169,206	$311,033	n/a	$1,180,971	0.000844%
Inland Flooding	$36,844,561,613	$3,486,197	769	$21,524,614	$57,254	$74,933	n/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	$982,185,569	n/a	5,614	$1,843	n/a	$7,698	0.000188%
Lightning	$36,857,210,670	n/a	169,235	$54,102	n/a	$832,444	0.000147%
Strong Wind	$36,857,210,670	$6,790,390	169,235	$1,924,018	$1,203	$3,873,909	0.00522%
Tornado	$36,857,210,670	$6,790,390	169,235	$6,660,646	$270	$8,623,767	0.0181%
Wildfire	$5,400,514,691	$865,689	27,690	$29,036	$1	$2,857	0.000538%
Winter Weather	$36,857,210,670	$6,790,390	169,235	$435,517	$7	$695,568	0.00118%

Totals since the plan: not available. Plan 110182 was approved by FEMA on 2024-11-08 but is not yet adopted here, so no since-plan counts are given.

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

Measure	Value
Population	169,235
Building value (total, not at risk)	$36,857,210,670
Agriculture value (total, not at risk)	$6,790,390
NRI risk rating (all hazards)	Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards	$34,479,845
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)	$34,001,972
Social vulnerability rating	Relatively Moderate
Community resilience rating	Relatively Moderate
NRI version	December 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

Definition	Properties	Severe repetitive loss	Properties
Repetitive loss, FMA definition (44 CFR 77.2)	6	Severe repetitive loss, FMA definition (44 CFR 77.2)	11
Repetitive loss, NFIP insurance definition	42	Severe repetitive loss, NFIP insurance definition	9

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

Scope	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Mitigatedproperties	Currently insuredproperties
County total	6	11	42	9	47	4	8
of which: Bonner Springs city	3	0	7	0	8	0	3
of which: Edwardsville city	0	0	2	0	2	0	0
of which: Kansas City city	3	11	33	9	37	4	5
Statewide, no county in FEMA's file	0	0	1	0	1	0	0

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

Jurisdiction	NFIP community ID	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Mitigatedproperties	Currently insuredproperties
Wyandotte County	200562	0	0	0	0	0	0	0
Bonner Springs city	200361	3	0	7	0	8	0	3
Edwardsville city	200362	0	0	2	0	2	0	0
Kansas City city	200363	3	11	33	9	37	4	5

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 group	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Mitigatedproperties	Currently insuredproperties
single-family residential	6	1	17	0	21	3	3
2 to 4 unit residential	0	0	0	0	0	0	0
other residential	0	0	2	0	2	0	0
non-residential	0	10	23	9	24	1	5
not reported	0	0	0	0	0	0	0

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 3 properties are FMA repetitive loss but not NFIP repetitive loss, and 39 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):

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
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)
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/
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
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). Wyandotte County, KS: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 20209). Automated baseline. https://hazardplain.org/ks/20209/ 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]