Hazard Plain Automated baseline

Boone County, NE

Risk-assessment baseline packet

County FIPS:
31011
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: Approved, expires 2027-06-03. Plan: Lower Loup NRD (FEMA plan 108284), approved 2022-06-03.

Since the plan was approved on 2022-06-03: 3 new hazard declarations (3 incidents) and 71 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Hail ($4,244,905 a year), Inland Flooding ($3,470,859) and Drought ($1,588,107).

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Plan clock

Status:
Approved, expires 2027-06-03
Plan:
Lower Loup NRD (FEMA plan 108284)
Approved:
2022-06-03
Days to expiry:
246
Update underway:
none recorded in FEMA's plan tracker

What changed since your last plan (approved 2022-06-03)

New federal declarations:
3 new hazard declarations (3 incidents): DR-4662-NE (Severe Storms and Straight-Line Winds), DR-4778-NE (Severe Storms, Straight-Line Winds, and Tornadoes), DR-4868-NE (Severe Winter Storm and Straight-Line Winds)
Storm Events records since approval:
71 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 1
Repeat-flood change:
this release sets the baseline count.

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

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
Boone CountyCountyApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2023-09-18
Albion cityCityApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2023-09-19
Cedar Rapids villageVillageApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2023-09-18
Petersburg villageVillageApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2022-08-23
Primrose villageVillageApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2022-10-05
St. Edward cityCityApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2022-10-05
Albion Fire and RescueFire/EMS DistrictApproved, expires 2027-06-03Lower Loup NRD (FEMA plan 108284)2022-06-032027-06-03246this jurisdiction approved 2022-10-21
Benkelman Rural FireFire/EMS DistrictExpired on 2026-01-07Chase, Dundy and Perkins County (FEMA plan 107185)2021-01-072026-01-07-266this jurisdiction approved 2021-12-08

Plan 108284 lists 57 other participants not on this page, 3 of them not covered by it yet (named in the Excel file).

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

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

  • dam failure (incl. upstream dams)
  • levee failure
  • flash flood as its own subtype
  • ice jams
  • debris flows
  • erosion (riverine and coastal)
  • land subsidence and sinkholes
  • expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countWhy this hazard can be left outNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1HailRelatively HighRelatively High$464,811$3,768,262$11,831$4,244,905153
2Inland FloodingVery LowVery Low$2,717,639$750,964$2,256$3,470,85931
3DroughtRelatively ModerateRelatively Moderaten/a$1,588,107n/a$1,588,10721
4TornadoRelatively LowRelatively Low$683,380$45,236$513,507$1,242,12312
5Cold WaveRelatively LowRelatively Moderate$347$3,164$996,397$999,90747
6Strong WindRelatively ModerateRelatively Moderate$283,121$540,819$63,921$887,861109Includes 29 High Wind and 3 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
7Ice StormRelatively ModerateRelatively Moderate$129,026n/a$13,315$142,3412
8Winter WeatherRelatively ModerateRelatively Moderate$41,898$1,658$51,877$95,43362
9LightningRelatively LowVery Low$5,629n/a$75,291$80,9212
10Heat WaveVery LowVery Low$13,904$8$50,963$64,87512
11WildfireVery LowVery Low$28,112$660$736$29,5081
12EarthquakeVery LowVery Low$11,485n/a$938$12,423Storm Events does not record earthquakes.
13LandslideVery LowVery Low$44n/a$27$710No 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-3245-NE 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).

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 landslide records (Storm Events records this hazard only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche, coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Hazards that vary within the county: highest-rated census tracts

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 9601 (Very Low, 27.6); tract 9602 (Very Low, 16.2)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 9601 (Very Low, 80.4); tract 9602 (Very Low, 26.3)
Tornadotract 9601 (Very High, 99.6); tract 9602 (Relatively High, 85.2)
Wildfiretract 9601 (Relatively Moderate, 90.2); tract 9602 (Relatively Low, 78.1)

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 9601 is Census Tract 9601). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

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

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill47 records, 1996 to 2025 (47 zone-level)1 day to 5 days (median 2 days); 39 with a recorded value5 consecutive days, 2024-01-12 to 2024-01-16, zone-levelCountywide (zone-level records).Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run.
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)21 records, 1999 to 2026 (21 zone-level)22 days to 316 days (median 91 days); 5 with a recorded value316 days (about 10.4 months), 2012-07-17 to 2013-05-28, a run of 11 consecutive Storm Events drought records, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)187 records, 1955 to 20250.75 in to 3 in (median 1 in); 186 with a recorded value3 in hail, 2012-04-14; same size also recorded on 1960-07-17, 1961-07-18, 1987-08-19Hail, 1994-06-24, property not recorded; $500,000 crops (1994 dollars)Event records naming jurisdictions in the plan: Albion city (51 records), Petersburg village (28 records), Cedar Rapids village (21 records), St. Edward city (19 records), Primrose village (15 records).
Excessive Heat, Heatheat index (in event narratives)12 records, 1999 to 2025 (12 zone-level)1 day to 12 days (median 2.5 days); 12 with a recorded value12 consecutive days, 1999-07-19 to 1999-07-30, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)2 records, 2007 to 2017 (2 zone-level)No damage reported in 2 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)31 records, 1998 to 2025 (1 zone-level)Flash Flood, 2004-05-22, $100,000 property; crops not reported (2004 dollars)Event records naming jurisdictions in the plan: St. Edward city (8 records), Petersburg village (6 records), Albion city (5 records), Primrose village (4 records), Cedar Rapids village (3 records). Zone-level records (1) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)2 records, 1996 to 1998Lightning, 1998-06-17, $70,000 property; crops not reported (1998 dollars)Event records naming jurisdictions in the plan: Albion city (1 record), Petersburg village (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)32 records, 1996 to 2026 (32 zone-level)35 kt (40 mph) to 57 kt (66 mph) (median 50 kt (58 mph)); 32 with a recorded value57 kt (66 mph) measured gust, High Wind, 2025-03-19; NWS zone NEZ030Strong Wind, 2012-01-11, $20,000 property; $0 crops (zone total, 2012 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)109 records, 1960 to 202650 kt (58 mph) to 73 kt (84 mph) (median 55 kt (63 mph)); 87 with a recorded value73 kt (84 mph) measured gust, Thunderstorm Wind, 2021-06-23Thunderstorm Wind, 1998-06-17, $100,000 property; crops not reported (1998 dollars)Event records naming jurisdictions in the plan: Albion city (22 records), Cedar Rapids village (15 records), Petersburg village (12 records), St. Edward city (8 records), Primrose village (5 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)29 records, 1953 to 2024F/EF0 to F/EF4 (median F/EF0); 26 with a recorded valueF4 tornado, 1965-05-08, 27.2 mi path length (whole path, pre-1996), 33 yd wide, $25,000,000 property; crops not recorded (1965 dollars), 4 direct deaths, 53 direct injuriesEvent records naming jurisdictions in the plan: Petersburg village (2 records), Albion city (1 record), Cedar Rapids village (1 record), St. Edward city (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Wildfireacres burned (local data)1 record, 2012 (1 zone-level)No damage reported in 1 record.Countywide (zone-level records).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)62 records, 1996 to 2025 (62 zone-level)Winter Storm, 2006-12-30, $8,000,000 property; $0 crops (2006 dollars); NWS zone NEZ030Countywide (zone-level records).

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of debris flow and lightning.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

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

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 20 declarations covering 17 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2025-05-212025-03-18DR-4868-NEMajor disasterSevere Winter Storm and Straight-Line WindsWinter Weatherno Public Assistance recordednew since last plan; within last 5 years
2024-05-032024-04-25DR-4778-NEMajor disasterSevere Storms, Straight-Line Winds, and TornadoesTornadono Public Assistance recordednew since last plan; within last 5 years
2022-07-272022-05-12DR-4662-NEMajor disasterSevere Storms and Straight-Line WindsStrong Windno Public Assistance recordednew since last plan; within last 5 years
2020-04-042020-01-20DR-4521-NEMajor disasterCOVID-19 PandemicNon-natural, not counted$9,344.49
2020-03-132020-01-20EM-3483-NEEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4521
2019-03-212019-03-09DR-4420-NEMajor disasterSevere Winter Storm, Straight-Line Winds, and FloodingInland Flooding (primary); also designated: Strong Wind, Winter Weather$1,236,139.44
2018-06-292018-04-13DR-4375-NEMajor disasterSevere Winter Storm and Straight-Line WindsWinter Weather (primary); also designated: Strong Windno Public Assistance recorded
2010-07-152010-06-01DR-1924-NEMajor disasterSevere Storms and FloodingInland Flooding$225,898.61
2010-04-212010-03-06DR-1902-NEMajor disasterSevere Storms, Ice Jams, and FloodingInland Floodingno Public Assistance recorded
2010-02-252009-12-22DR-1878-NEMajor disasterSevere Winter Storms and SnowstormWinter Weatherno Public Assistance recorded
2008-06-202008-05-22DR-1770-NEMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; Tornado$99,934.56
2007-01-072006-12-19DR-1674-NEMajor disasterSevere Winter StormsWinter Weather$51,302.21
2006-01-262005-11-27DR-1627-NEMajor disasterSevere Winter StormWinter Weatherno Public Assistance recorded
2005-09-132005-08-29EM-3245-NEEmergencyHurricane Katrina EvacueesHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2004-05-252004-05-20DR-1517-NEMajor disasterSevere Storms, Tornadoes and FloodingInland Flooding; Tornado$160,982.45
1993-07-191993-06-23DR-998-NEMajor disasterSevere Storms and FloodingInland Floodingno Public Assistance recorded
1990-07-041990-06-10DR-873-NEMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1971-02-231971-02-23DR-303-NEMajor disasterFloodsInland Floodingno Public Assistance recorded
1967-07-181967-07-18DR-228-NEMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1966-08-311966-08-31DR-221-NEMajor disasterHeavy Rains & FloodingInland Floodingno Public Assistance recorded

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1964-07-201964-07-20DR-174-NEMajor disasterSevere Storms & FloodingInland Flooding
1963-07-171963-07-17DR-156-NEMajor disasterHeavy Rains & FloodingInland Flooding
1962-09-051962-09-05DR-134-NEMajor disasterFloodsInland Flooding
1962-05-101962-05-10DR-131-NEMajor disasterFloodsInland Flooding
1960-04-041960-04-04DR-98-NEMajor disasterFloodsInland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

Public Assistance not placed in any Nebraska county: 7 rows, $3,747,676.55; listed on the Nebraska state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Cold Wave47303001996 to 2026-06-30
Drought21707001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail18718118001955 to 2026-06-30
Heat Wave12404001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm2000001996 to 2026-06-30
Inland Flooding312021001996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning2000001996 to 2026-06-30
Strong Wind14123726311955 to 2026-06-30Includes 29 High Wind and 3 Strong Wind records.
Tornado29505411950 to 2026-06-30
Wildfire1000001996 to 2026-06-30
Winter Weather62909611996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-03-19High Wind57 kt (66 mph) measured gust$0 property; $0 crops (zone total, 2025 dollars)0, 0NWS zone NEZ030 (BOONE), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2024-01-12Extreme Cold/Wind Chilldamage not reported0, 0NWS zone NEZ030 (BOONE), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2021-06-23Thunderstorm Wind73 kt (84 mph) measured gustdamage not reported0, 0ALBION MUNI ARPTin the 12 months before plan approvalB1-c worst recorded: Thunderstorm Wind
2012-07-17Drought$0 property; $0 crops (zone total, 2012 dollars)0, 0NWS zone NEZ030 (BOONE), zone-levelB1-c worst recorded: Drought
2012-04-14Hail3 indamage not reported0, 0PETERSBURG to CLOSTERB1-c worst recorded: Hail
2006-12-30Winter Storm$8,000,000 property; $0 crops (zone total, 2006 dollars)0, 0NWS zone NEZ030 (BOONE), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2004-05-22Flash Flood$100,000 property; crops not reported (2004 dollars)0, 0COUNTYWIDEB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
1999-07-19Heatdamage not reported0, 0NWS zone NEZ030 (BOONE), zone-levelB1-c worst recorded: Excessive Heat, Heat
1998-06-17Lightning$70,000 property; crops not reported (1998 dollars)0, 0PETERSBURGB1-c worst recorded: Lightning
1996-01-17Cold/Wind Chilldamage not reported0, 2NWS zone NEZ030 (BOONE), zone-leveldeaths or injuries recorded
1966-06-05TornadoF2, 0.7 mi path length (whole path, pre-1996), 33 yd widedamage not recorded (pre-1996 record)0, 1location not recordeddeaths or injuries recorded
1965-05-08TornadoF4, 27.2 mi path length (whole path, pre-1996), 33 yd wide$25,000,000 property; crops not recorded (1965 dollars)4, 53location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (535 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

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

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Cold Wave5.58event-days per yearabout 5.58 days per yearLikelyStorm Events event-days in 21 of 30 years, 1996 to 2025 (70%)1062005-11-12 to 2024-11-12 (19 years)countywide
Drought39.5event-days per yearabout 39.5 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)1,0012000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000536annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0536%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail5.95events per yearabout 5.95 per yearHighly likelyFEMA annualized frequency (modeled)226.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.37event-days per yearabout 4.37 days per yearLikelyStorm Events event-days in 7 of 30 years, 1996 to 2025 (23.3%)752005-11-12 to 2024-11-12 (19 years)countywide
Hurricaneevents per year1851 to 2024 (Atlantic)see B1-fNot Applicable in NRI for this county; no descriptor.
Ice Storm0.61event-days per yearabout 0.61 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)411946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding0.893event-days per yearabout 0.893 days per yearLikelyStorm Events event-days in 11 of 30 years, 1996 to 2025 (36.7%)251996 to 2023 (28 years)see B1-f
Landslide0.288events per year (modeled)about 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning41.8days per year with a strikeabout 41.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind2.77events per yearabout 2.77 per yearHighly likelyFEMA annualized frequency (modeled)1061986 to 2023 (38 years)countywide
Tornado0.529events per yearabout 0.53 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000321annual probability at a locationchance a given location in the county burns in a year: 0.0321%PossibleStorm Events records in 1 of 30 years, 1996 to 2025 (3.33%)not shownmodeledsee B1-f
Winter Weather14.8event-days per yearabout 14.8 days per yearHighly likelyStorm Events event-days in 28 of 30 years, 1996 to 2025 (93.3%)2822005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202584302.8
Hail2.00 in+1996 to 20256300.2
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202568302.27
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20256300.2
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20250300
TornadoEF0-11996 to 20258300.267
TornadoEF2-31996 to 20251300.0333
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20253300.1

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Cold Wave2 of 290.294.298.3Very High 1, Relatively High 1
Drought2 of 289.994.899.7Relatively High 1, Relatively Low 1
Earthquake2 of 216.221.927.6Very Low 2
Hail2 of 293.196.5100.0Very High 1, Relatively High 1
Heat Wave2 of 227.144.762.3Relatively Moderate 1, Relatively Low 1
Hurricane0 of 2Not Applicable 2
Ice Storm2 of 289.794.098.2Very High 1, Relatively Moderate 1
Inland Flooding2 of 240.169.699.0Very High 1, Relatively Low 1
Landslide2 of 226.353.380.4Very Low 2
Lightning2 of 274.685.195.6Relatively High 1, Relatively Moderate 1
Strong Wind2 of 288.194.099.9Very High 1, Relatively High 1
Tornado2 of 285.292.499.6Very High 1, Relatively High 1
Wildfire2 of 278.184.190.2Relatively Moderate 1, Relatively Low 1
Winter Weather2 of 294.797.199.5Very High 1, Relatively High 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.

Hail: Agriculture is 89% of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

Strong Wind: Agriculture is 61% 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).

This county has 2 census tracts; the minimum, median and maximum come from those 2.

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Boone CountyCountyApproved, expires 2027-06-03FMA RL 0, SRL 0; any 0$541,006.770 total; 0 since its planIncludes $9,344.49 for declarations not counted as hazard incidents (DR-4521-NE).
Albion cityCityApproved, expires 2027-06-03FMA RL 0, SRL 0; any 0$5,555.5580 total; 9 since its plan
Cedar Rapids villageVillageApproved, expires 2027-06-03FMA RL 0, SRL 0; any 0no Public Assistance recorded40 total; 8 since its plan
Petersburg villageVillageApproved, expires 2027-06-03FMA RL 0, SRL 0; any 0no Public Assistance recorded49 total; 5 since its plan
Primrose villageVillageApproved, expires 2027-06-03FMA RL 0, SRL 0; any 0no Public Assistance recorded24 total; 2 since its plan
St. Edward cityCityApproved, expires 2027-06-03FMA RL 0, SRL 0; any 1$227,538.3836 total; 4 since its plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

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

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

Sources: 1, 2, 3, 5, 6, 7

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2022-06-03county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Cold Wave$2,349,444,984$609,985,6555,372$347$3,164$996,397under 0.0001%$0
Droughtn/a$136,615,840n/an/a$1,588,107n/a1.16% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$3,926,019,422n/a5,379$11,485n/a$9380.000293%
Hail$2,349,444,984$609,985,6555,372$464,811$3,768,262$11,8310.0198%$0
Heat Wave$2,349,444,984$609,985,6555,372$13,904$8$50,9630.000592%$0
HurricaneNot Applicable in NRI for this county
Ice Storm$2,349,444,984n/a5,372$129,026n/a$13,3150.00549%
Inland Flooding$2,348,389,629$68,051,824303$2,717,639$750,964$2,256n/a (see note)$0NRI 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$16,104,828n/a30$44n/a$270.000272%
Lightning$2,349,444,984n/a5,372$5,629n/a$75,2910.00024%
Strong Wind$2,349,444,984$609,985,6555,372$283,121$540,819$63,9210.0121%$0$0no Public Assistance recorded (1 declaration)
Tornado$2,349,444,984$609,985,6555,372$683,380$45,236$513,5070.0291%$0no Public Assistance recorded (1 declaration)
Wildfire$611,987,991$225,319,4231,423$28,112$660$7360.00459%
Winter Weather$2,349,444,984$609,985,6555,372$41,898$1,658$51,8770.00178%$0no Public Assistance recorded (1 declaration)

Totals since 2022-06-03 (Storm Events through 2026-06-30): 41 county-coded records, 11 with a damage value recorded (including $0), $0; 30 zone-level records, 20 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: none recorded on the 3 counted declarations.

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

MeasureValue
Population5,372
Building value (total, not at risk)$2,349,444,984
Agriculture value (total, not at risk)$609,985,655
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$11,078,274
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)$1,781,061
Social vulnerability ratingRelatively Moderate
Community resilience ratingVery High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition1Severe repetitive loss, NFIP insurance definition0

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0010100
of which: St. Edward city0010100
Statewide, no county in FEMA's file0020200

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Boone County3100080000000
Albion city3100090000000
Cedar Rapids village3102580000000
Petersburg village3103080000000
Primrose village3152850000000
St. Edward city3100100010100

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0010100
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
not reported0000000

FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 1 property is NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Boone County, NE: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 31011). Automated baseline. https://hazardplain.org/ne/31011/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: contact@hazardplain.org