Hazard Plain Preview: automated baseline

Clay County, IA

Risk-assessment baseline packet

Unit
County area 19041
Release
2026-10
As of
2026-09-28
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.

A starting point for the plan's risk assessment (FEMA Local Mitigation Plan Review Tool, Element B). It does not replace local data or FEMA review. Section headings say which FEMA review item each table supports; whether an item is satisfied is decided by the plan and its reviewers.

Hazard Plain release 2026-10, as of 2026-09-28. Independent product; not a FEMA document.

Plan clock

Status
Plan 110712 approved 2025-05-09, pending adoption here; not yet eligible
Plan
Clay County (FEMA plan 110712), pending adoption here
Approved
2025-05-09 by FEMA; not yet adopted here
Expires
2030-05-08 once adopted
As of
2026-09-28
Update underway
FEMA tracker shows a plan approvable pending adoption

Not yet eligible: adopt the approved plan.

Not yet eligible: adopt the approved plan.

What changed since your last plan

Not available. Plan 110712 was approved by FEMA on 2025-05-09 but is not yet adopted here, so no since-plan counts are given.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

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" after these cover 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

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Clay CountyCountyPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Dickens cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-05-26
Everly cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-03-26
Fostoria cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-03-26
Gillett Grove cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Greenville cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Peterson cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-05-28
Rossie cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Royal cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Spencer cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-03-26
Webb cityCityApproved, expires 2030-05-08Clay County (FEMA plan 110712)2025-05-092030-05-081,318member approved 2025-03-26
Clay Central-Everly Community School DistrictSchool/School DistrictPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Graettinger-Terril Community School DistrictSchool/School DistrictExpired on 2018-05-21Palo Alto County (FEMA plan 36749)2013-05-212018-05-21-3,052
Hartley-Melvin-Sanborn Community School DistrictSchool/School DistrictApproved, expires 2027-01-17Sioux, O'Brien and Osceola Counties Multi-Jurisdictional HM Plan (FEMA plan 107675)2022-01-172027-01-17111member approved 2022-06-21
Ruthven-Ayrshire Community School DistrictSchool/School DistrictExpired on 2018-05-21Palo Alto County (FEMA plan 36749)2013-05-212018-05-21-3,052
Sioux Central Community School DistrictSchool/School DistrictApproved, expires 2028-08-23Buena Vista County (FEMA plan 109166)2023-08-242028-08-23695member approved 2023-10-03
Spencer Community School DistrictSchool/School DistrictPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleClay County (FEMA plan 110712), pending adoption here2025-05-09 by FEMA; not yet adopted here2030-05-08 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.

Source

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B1-a: hazards

Hazards NRI does not cover: check locally

  • 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)

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively LowRelatively Low$10,754,189$181,724$26,316$10,962,229188
2TornadoRelatively LowRelatively Low$1,274,573$18,351$813,711$2,106,63527
3HailRelatively ModerateRelatively Moderate$146,015$1,328,529$78,265$1,552,809199
4Cold WaveRelatively LowRelatively Moderate$1,960$296,983$789,295$1,088,23935
5Strong WindRelatively LowRelatively Low$269,087$98,635$118,068$485,790180Includes 41 High Wind records and 7 Strong Wind records, event types the NRI definition of this hazard leaves out.
6DroughtRelatively LowRelatively Moderate$466,882$466,88246
7Winter WeatherRelatively ModerateRelatively Moderate$127,762$771$73,347$201,881179
8Ice StormRelatively LowRelatively Low$65,237$11,346$76,5835
9Heat WaveVery LowVery Low$2,642$7$62,577$65,22624
10LightningVery LowVery Low$6,565$50,369$56,9341
11EarthquakeVery LowVery Low$17,659$4,435$22,094Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
12WildfireVery LowVery Low$17,922$395$2,219$20,5372
13LandslideVery LowVery Low$18$547$5640No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
HurricaneNot ApplicableNot Applicable0NRI rates hurricane Not Applicable for this county, and no counted federal declaration for this county names it (EM-3239-IA names it but is not counted as a local occurrence; see B1-d).No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 5
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 5
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.5 of 5
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 5
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
Inland FloodingThe 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.5 of 5
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.5 of 5
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.5 of 5
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 5
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 5
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.5 of 5
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.5 of 5

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill35, 1996 to 2025 (35 zone-level)1 day to 5 days (median 2 days); 31 with a recorded value5 consecutive days, 2024-01-12 to 2024-01-16, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage0Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale46, 1999 to 2024 (46 zone-level)36 days to 407 days (median 90 days); 7 with a recorded value407 days (about 13.4 months), 2020-08-25 to 2021-10-05, a run of 15 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.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)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)247, 1957 to 20260.5 in to 4.25 in (median 1 in); 247 with a recorded value4.25 in hail, 2004-05-21; same size also recorded on 2004-05-21Hail, 2002-10-01, $50,000 property; $30,000,000 crops (2002 dollars)Event records naming member places: Spencer city (50 records), Webb city (27 records), Dickens city (22 records), Everly city (22 records), Royal city (22 records), Peterson city (13 records), Gillett Grove city (12 records), Fostoria city (8 records), Rossie city (8 records), Greenville city (4 records).
Excessive Heat, Heatheat index (narratives)24, 1999 to 2026 (24 zone-level)1 day to 6 days (median 2 days); 23 with a recorded value6 consecutive days, 2011-07-15 to 2011-07-20, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)5, 1996 to 2023 (5 zone-level)No damage reported in 5 records.Zone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)188, 1997 to 2024 (5 zone-level)Flood, 2024-06-21, $25,590,000 property; $0 crops (2024 dollars), 1 direct deathEvent records naming member places: Everly city (77 records), Spencer city (63 records), Fostoria city (59 records), Dickens city (30 records), Gillett Grove city (20 records), Greenville city (16 records), Peterson city (9 records), Webb city (5 records), Rossie city (4 records). Zone-level records (5) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)1, 2001 to 2001Lightning, 2001-09-02, $10,000 property; crops not reported (2001 dollars)Event records naming member places: Peterson city (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)48, 1996 to 2026 (48 zone-level)35 kt (40 mph) to 65 kt (75 mph) (median 51 kt (59 mph)); 48 with a recorded value65 kt (75 mph) measured, High Wind, 2001-04-07; NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)177, 1960 to 202650 kt (58 mph) to 91 kt (105 mph) (median 56 kt (64 mph)); 160 with a recorded value91 kt (105 mph), measurement type not recorded, Thunderstorm Wind, 1990-06-16Thunderstorm Wind, 2005-09-08, $500,000 property; crops not reported (2005 dollars)Event records naming member places: Spencer city (36 records), Royal city (13 records), Dickens city (11 records), Webb city (11 records), Peterson city (8 records), Everly city (7 records), Greenville city (6 records), Rossie city (6 records), Fostoria city (3 records), Gillett Grove city (3 records).
TornadoEnhanced Fujita (F before Feb 2007)42, 1954 to 2026F/EF0 to F/EF3 (median F/EF1); 38 with a recorded valueF3 tornado, 2004-06-11, 6 mi within this county, 400 yd wide, $50,000 property; crops not reported (2004 dollars)Tornado, 2004-06-11, $500,000 property; crops not reported (2004 dollars)Event records naming member places: Dickens city (8 records), Royal city (5 records), Spencer city (5 records), Webb city (5 records), Everly city (4 records), Gillett Grove city (3 records).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)2, 2011 to 2012 (2 zone-level)Wildfire, 2011-09-29, $15,000 property; crops not reported, reported for the zone (2011 dollars); NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)179, 1996 to 2026 (179 zone-level)Winter Storm, 2013-04-10, $10,000,000 property; $0 crops, reported for the zone (2013 dollars); NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

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

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Supports B1-d: previous occurrences

Declaration rows
21
Counted incidents
18

Plan 110712 was approved by FEMA on 2025-05-09 but is not yet adopted here, so no since-plan counts are given.

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-06-242024-06-16DR-4796-IAMajor disasterSEVERE STORMS, FLOODING, STRAIGHT-LINE WINDS, AND TORNADOESInland Flooding; Strong Wind; Tornado$25,156,067.28within last 5 years
2024-05-242024-05-20DR-4784-IAMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$4,967.67within last 5 years
2020-03-232020-01-20DR-4483-IAMajor disasterCOVID-19 PANDEMICNon-natural, not counted$33,031.93
2020-03-132020-01-20EM-3480-IAEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4483
2019-03-232019-03-12DR-4421-IAMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$592,830.26
2018-08-202018-06-06DR-4386-IAMajor disasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGInland Flooding; Strong Wind; Tornado$602,025.23
2014-07-242014-06-14DR-4184-IAMajor disasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGInland Flooding (primary); also designated: Strong Wind, Tornado$984,723.49
2013-07-022013-05-19DR-4126-IAMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$62,654.47
2011-08-242011-07-09DR-4016-IAMajor disasterSEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODINGInland Flooding; Strong Wind$77,882.22
2010-07-292010-06-01DR-1930-IAMajor disasterSEVERE STORMS, FLOODING, AND TORNADOESInland Flooding; Tornado$381,919.81
2010-03-022010-01-19DR-1880-IAMajor disasterSEVERE WINTER STORMWinter Weathernone found
2010-02-252009-12-23DR-1877-IAMajor disasterSEVERE WINTER STORMS AND SNOWSTORMWinter Weather$129,843.51
2007-03-302007-02-28EM-3275-IAEmergencySNOWWinter Weather$69,788.83
2005-09-102005-08-29EM-3239-IAEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2004-05-252004-05-19DR-1518-IAMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$442,059.06
1998-07-021998-06-13DR-1230-IAMajor disasterSEVERE STORMS, TORNADOES AND FLOODINGInland Flooding (primary); also designated: Tornadonone found
1993-07-091993-04-13DR-996-IAMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1991-12-261991-10-31DR-928-IAMajor disasterICE STORMIce Stormnone found
1969-08-141969-08-14DR-269-IAMajor disasterHEAVY RAINS & FLOODINGInland Floodingnone found
1969-04-251969-04-25DR-259-IAMajor disasterFLOODINGInland Floodingnone found
1965-04-221965-04-22DR-193-IAMajor disasterFLOODINGInland Floodingnone found

School districts and special districts in this county: $9,849,608.84 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan members in this county. They are not shown as member blocks, 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); do not add this line to the county total.

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.

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

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1962-09-051962-09-05DR-133-IAMajor disasterFLOODSInland Flooding
1961-03-311961-03-31DR-111-IAMajor disasterFLOODSInland Flooding
1958-07-051958-07-05DR-86-IAMajor disasterFLOODSInland Flooding
1954-06-231954-06-23DR-17-IAMajor disasterFLOODInland Flooding
1953-06-111953-06-11DR-8-IAMajor disasterFLOODInland Flooding

FEMA recorded these with designated area Statewide and no county. Listed on every county page in the state; not counted with county rows.

Source

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

Public Assistance filed under this county for declarations that do not list it: 2 rows, $51,071.73

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4181-IA2014-07-14SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGSpencer Municipal Utilities$31,877.25
DR-1998-IA2011-06-27FLOODINGSpencer Municipal Utilities$19,194.48

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

Public Assistance not placed in a county in this state: 11 rows, $7,881,708.52

Disaster numberDeclaredApplicantCounty field in FEMA dataPA obligatedfederal share obligated, nominal dollarsWhy not placed
45572020-08-17The Evangelical Lutheran Good Samaritan SocietyMinnehaha County$47,682.27county field is a county of another state and the applicant name does not identify a place in the declaring state
44832020-03-23Gundersen Lutheran Health System, IncLa Crosse County$326,644.22county field is a county of another state and the applicant name does not identify a place in the declaring state
44212019-03-23City of BigelowNobles County$80,835.34county field is a county of another state and the applicant name does not identify a place in the declaring state
44212019-03-23Dairyland Power CooperativeLa Crosse County$247,337.47county field is a county of another state and the applicant name does not identify a place in the declaring state
44212019-03-23South Dakota Dept of TransportationHughes County$3,666,245.52county field is a county of another state and the applicant name does not identify a place in the declaring state
44212019-03-23City of Omaha Parks and Recreation Dept(The Omaha Parks and Recreation)Douglas County$379,432.23county field is a county of another state and the applicant name does not identify a place in the declaring state
41842014-07-24South Dakota Dept of TransportationHughes County$1,245,084.61county field is a county of another state and the applicant name does not identify a place in the declaring state
41812014-07-14Lincoln Electric SystemLancaster County$383,692.95county field is a county of another state and the applicant name does not identify a place in the declaring state
41142013-05-06City of BigelowNobles County$5,961.43county field is a county of another state and the applicant name does not identify a place in the declaring state
19982011-06-27Lincoln Electric SystemLancaster County$65,027.74county field is a county of another state and the applicant name does not identify a place in the declaring state
16882007-03-14Dairyland Power CooperativeLa Crosse County$1,433,764.74county field is a county of another state and the applicant name does not identify a place in the declaring state

FEMA's Public Assistance summaries file these applicants under a county field that is not a county of this state (an Alaska school area, the former Valdez-Cordova Census Area, or another state's county), and the applicant name does not identify one place here. They are listed for the whole state and are not in any county total. Check whether any of them worked in your county.

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave351301996 to 2026-06-30
Drought461701996 to 2026-06-30
Earthquake000No Storm Events record; local data required (e.g., USGS).
Hail2472501955 to 2026-06-30
Heat Wave241301996 to 2026-06-30
Hurricane0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm5211996 to 2026-06-30
Inland Flooding18836141996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning1001996 to 2026-06-30
Strong Wind2255141955 to 2026-06-30Includes 41 High Wind records and 7 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado42581950 to 2026-06-30
Tsunami0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire2001996 to 2026-06-30
Winter Weather1792931996 to 2026-06-30

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2024-06-21Flood$25,590,000 property; $0 crops (2024 dollars)1, 0PETERSON to WEBBwithin last 5 yearsdeaths or injuries recorded
2024-01-12Extreme Cold/Wind Chilldamage not reported0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2020-08-25Drought$0 property; $2,900,000 crops, reported for the zone (2020 dollars)0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Drought
2013-04-10Winter Storm$10,000,000 property; $0 crops, reported for the zone (2013 dollars)0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2011-09-29Wildfire$15,000 property; crops not reported, reported for the zone (2011 dollars)0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Wildfire
2011-07-15Excessive Heat$0 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2008-05-06Thunderstorm Wind69 kt (79 mph) estimated gust$10,000 property; $0 crops (2008 dollars)0, 1ROSSIEdeaths or injuries recorded
2004-06-11TornadoF3, 6 mi within this county, 400 yd wide$50,000 property; crops not reported (2004 dollars)0, 0WEBBB1-c worst recorded: Tornado
2004-05-21Hail4.25 in$500,000 property; crops not reported (2004 dollars)0, 0SPENCERB1-c worst recorded: Hail
2001-09-02Lightning$10,000 property; crops not reported (2001 dollars)0, 0PETERSONB1-c worst recorded: Lightning
2001-04-07High Wind65 kt (75 mph) measured$400,000 property; crops not reported, reported for the zone (2001 dollars)0, 0NWS zone IAZ014 (CLAY), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
1990-06-16Thunderstorm Wind91 kt (105 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Thunderstorm Wind

The full list is in the XLSX file, sheet "B1-d Storm Events history" (994 rows).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State-declared emergencies are not in federal data. Add them from your state emergency management agency.

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

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

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
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave10.2event-days per yearabout 10.2 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)1932005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought23.5event-days per yearabout 23.5 days per yearLikelyevent-days in 9 of 30 years, 1996 to 2025 (30%)6162000 to 2025 (25.25 years; D3 and D4 only)countywideNRI gives about 23.5 drought event-days a year here (its annualized frequency over 25.25 years; not its event count divided by the years), but Storm Events has a record in only 9 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Earthquake0.000412annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0412%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail5.1events per yearabout 5.1 per yearHighly likelyFEMA annualized frequency (modeled)193.7 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.84event-days per yearabout 4.84 days per yearLikelyevent-days in 9 of 30 years, 1996 to 2025 (30%)792005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 4.84 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 9 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricaneevents per year1851 to 2024 (Atlantic)see B1-fNot Applicable in NRI for this county; no descriptor.
Ice Storm0.789event-days per yearabout 0.789 days per yearLikelyevent-days in 5 of 30 years, 1996 to 2025 (16.7%)531946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding3.64event-days per yearabout 3.64 days per yearLikelyevent-days in 21 of 30 years, 1996 to 2025 (70%)1021996 to 2023 (28 years)see B1-f
Landslide0.0642events per year (modeled)about 1 in 16 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning39.8days per year with a strikeabout 39.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind3.64events per yearabout 3.64 per yearHighly likelyFEMA annualized frequency (modeled)1391986 to 2023 (38 years)countywide
Tornado0.445events per yearabout 1 in 2 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.000445annual probability at a locationchance a given location in the county burns in a year: 0.0445%PossibleStorm Events records in 2 of 30 years, 1996 to 2025 (6.67%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI: the NRI value is the chance at a location in the county, not how often the hazard affects the county.
Winter Weather17.8event-days per yearabout 17.8 days per yearHighly likelyevent-days in 30 of 30 years, 1996 to 2025 (100%)3392005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) comes from the National Risk Index v1.20 (December 2025). It is not recorded events divided by years, and what it measures depends on the hazard. For most hazards it estimates how often the hazard affects this county each year: it counts events or event-days (drought, heat wave, cold wave, winter weather, ice storm and inland flooding are in days per year; lightning is the number of days per year with a recorded cloud-to-ground strike, from the NOAA Storm Prediction Center daily lightning climatology); it may count events in the surrounding area (hail, strong wind, tornado, hurricane and ice storm use a 49 km grid and buffers) and is averaged over the county's area; and some hazards use a minimum value for places with no recorded event. Earthquake, wildfire and coastal flooding are different: FEMA computes them for each census block and averages them over the county, so the value is the chance (for coastal flooding, the modeled number of floods per year) at a location in the county, which is lower than the chance that the hazard strikes somewhere in the county. Earthquake is the chance of at least minor-damage shaking (U.S. Geological Survey model); wildfire is the chance that a location burns in a large fire (U.S. Forest Service burn probability); coastal flooding comes from FEMA flood zones and NOAA high-tide flooding, so it can be above 1 where high-tide flooding is frequent. Tsunami is the value at the county's most exposed location, from recorded events and modeled return periods. For these four hazards the packet gives no "1 in N years" and takes the descriptor from Storm Events (none for earthquake) unless the value is 1 or more a year. Landslide is a U.S. Geological Survey modeled county rate spread by slope susceptibility. Volcanic activity is the chance that a volcano affecting the county erupts in a year. Drought counts only extreme and exceptional drought (D3 and D4). Source: FEMA, National Risk Index Technical Documentation v1.20, sections 5.2.2 (Table 5), 5.2.3, 7.4, 10.4, 16.5, 17.1, 17.3.1, 17.5, 20.3.1, 21.4, 22.4 and 6 to 23.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Descriptor scale used in this packet (defined per unit)

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202592303.07
Hail2.00 in+1996 to 202513300.433
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 2025107303.57
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 202521300.7
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20250300
TornadoEF0-11996 to 202519300.633
TornadoEF2-31996 to 20253300.1
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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.

Source

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

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.

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 5Not Applicable 5
Coastal Flooding0 of 5Not Applicable 5
Cold Wave5 of 568.886.288.8Relatively High 3, Relatively Moderate 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought5 of 570.487.097.6Relatively Moderate 2, Relatively Low 2, Very Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake5 of 59.714.722.4Very Low 5
Hail5 of 576.387.899.7Very High 2, Relatively Moderate 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is 86% of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Heat Wave5 of 510.314.530.3Relatively Low 1, Very Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane0 of 5Not Applicable 5
Ice Storm5 of 568.774.783.9Relatively Moderate 4, Relatively Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding5 of 583.192.797.9Very High 2, Relatively High 3
Landslide5 of 523.550.288.1Relatively Low 2, Very Low 3
Lightning5 of 537.443.264.3Relatively Moderate 1, Relatively Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind5 of 579.891.693.1Relatively High 4, Relatively Moderate 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado5 of 584.087.096.6Very High 1, Relatively High 4
Tsunami0 of 5Not Applicable 5
Volcanic Activity0 of 5Not Applicable 5
Wildfire5 of 557.079.181.1Relatively Low 4, Very Low 1
Winter Weather5 of 595.596.298.6Very High 4, Relatively High 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Clay CountyCountyPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$1,602,914.520; no approved planIncludes $14,800 for declarations not counted as hazard incidents (DR-4483-IA).
Dickens cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$999.0271; 2
Everly cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$99,948.92110; 0
Fostoria cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$5,808.3770; 1
Gillett Grove cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$81038; no approved plan
Greenville cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$926.8826; no approved plan
Peterson cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$74,778.4331; 1
Rossie cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$993.7518; no approved plan
Royal cityCityPlan 110712 approved 2025-05-09, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$39,767.8340; no approved plan
Spencer cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$8,442,064.11154; 2Includes $18,231.93 for declarations not counted as hazard incidents (DR-4483-IA).
Webb cityCityApproved, expires 2030-05-08FMA RL 0, SRL 0; any 0$1,363.5048; 8

Member 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 member row, while the county table counts only its part in this county.

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

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Supports B2-a and B2-b: assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant and its own assets.

Plan 110712 was approved by FEMA on 2025-05-09 but is not yet adopted here, so no since-plan counts are given.

  • Critical facilities and lifelines per hazard
  • A problem statement per participant 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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$5,231,232,311$449,013,07216,377$1,960$296,983$789,295under 0.0001%
Drought$143,139,848$466,8820.326% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$9,442,220,02816,384$17,659$4,4350.000187%
Hail$5,231,232,311$449,013,07216,377$146,015$1,328,529$78,2650.00279%
Heat Wave$5,231,232,311$449,013,07216,377$2,642$7$62,577under 0.0001%
HurricaneNot Applicable in NRI for this county
Ice Storm$5,231,232,31116,377$65,237$11,3460.00125%
Inland Flooding$5,225,165,808$58,521,760625$10,754,189$181,724$26,316n/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. EAL as % of exposure: n/a.
Landslide$17,441,14663$18$5470.000101%
Lightning$5,231,232,31116,377$6,565$50,3690.000125%
Strong Wind$5,231,232,311$449,013,07216,377$269,087$98,635$118,0680.00514%
Tornado$5,231,232,311$449,013,07216,377$1,274,573$18,351$813,7110.0244%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$1,235,202,960$100,730,0474,635$17,922$395$2,2190.00145%
Winter Weather$5,231,232,311$449,013,07216,377$127,762$771$73,3470.00244%

Totals since the plan: not available. Plan 110712 was approved by FEMA on 2025-05-09 but is not yet adopted here, so no since-plan counts are given.

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

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 must not be added up; the unit total counts each declaration once.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B2-a: context

County context

MeasureValue
Population16,377
Building value (total, not at risk)$5,231,232,311
Agriculture value (total, not at risk)$449,013,072
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$15,075,906
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)$2,030,495
Social vulnerability ratingVery Low
Community resilience ratingRelatively High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss total adds buildings, agriculture and population equivalence; the two parts are shown separately so the property figure is not read as including the statistical value of life.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition0Severe repetitive loss, NFIP insurance definition0

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0000000
State level, not in this county: county not reported0010100

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Clay County1908570000000
Dickens city1903550000000
Everly city1903560000000
Fostoria city1951910000000
Gillett Grove city1909240000000
Greenville city1952010000000
Peterson city1903570000000
Rossie city1951900000000
Royal city1907990000000
Spencer city1900710000000
Webb city1908220000000

Per-member types: XLSX sheet 'B2-c Members'.

Member 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 member row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0000000
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
not reported0000000

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall 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; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

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

Counts may differ from your state NFIP coordinator's list, which is the source the Handbook names.

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

Every table above lists its own sources. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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

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).

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.

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). Clay County, IA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 19041). Preview: automated baseline. 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: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_IA_19041. Preview: automated baseline.