Hazard Plain Automated baseline

Nome Census Area, AK

Risk-assessment baseline packet

County FIPS:
02180
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: No county-level plan row in FEMA data.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Cold Wave ($4,872,896 a year), Earthquake ($574,252) and Inland Flooding ($470,387).

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

No county-level plan row in FEMA data

What changed since your last plan

Not available. No county-level plan row in FEMA data, so there is no approval date to count from.

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

Plan status for every jurisdiction listed in this county: 15 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.

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

Plan clock

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Brevig Mission cityCityApproved, expires 2028-10-16Brevig Mission Village and City MJHMP (FEMA plan 108622)2023-10-172028-10-16747
Diomede cityCityApproved, expires 2028-10-17Diomede Village and City MJHMP (FEMA plan 108623)2023-10-182028-10-17748this jurisdiction approved 2023-10-17
Elim cityCityApproved, expires 2028-10-16Elim Village and City MJHMP (FEMA plan 108628)2023-10-172028-10-16747
Gambell cityCityApproved, expires 2028-10-15Gambell Village and City MJHMP (FEMA plan 108631)2023-10-162028-10-15746
Golovin cityCityApproved, expires 2028-06-26Chinik Eskimo Community and City of Golovin MJHMP (FEMA plan 108630)2023-06-272028-06-26635
Koyuk cityCityApproved, expires 2028-10-15Koyuk Village and City MJHMP (FEMA plan 108629)2023-10-162028-10-15746
Nome cityCityExpired on 2022-02-03Nome HMP (FEMA plan 102808)2017-02-032022-02-03-1,700FEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Savoonga cityCityApproved, expires 2029-06-13Savoonga City and Native Village MJHMP (FEMA plan 108562)2024-06-142029-06-13987
Shaktoolik cityCityApproved, expires 2028-02-26Shaktoolik City and Native Village MJHMP (FEMA plan 108563)2023-02-272028-02-26514
Shishmaref cityCityApproved, expires 2028-01-08Shishmaref City and Native Village MJHMP (FEMA plan 108564)2023-01-092028-01-08465FEMA tracker shows a plan in progress
St. Michael cityCityApproved, expires 2027-11-28St. Michael HMP (FEMA plan 108568)2022-11-292027-11-28424
Stebbins cityCityExpired on 2018-12-06Stebbins HMP (FEMA plan 25132)2013-12-062018-12-06-2,855FEMA tracker shows a plan in progress
Unalakleet cityCityApproved, expires 2028-10-13Unalakleet Village and City MJHMP (FEMA plan 108626)2023-10-142028-10-13744
Wales cityCityApproved, expires 2030-03-26Native Village and City of Wales MJHMP (FEMA plan 109410)2025-03-272030-03-261,273
White Mountain cityCityApproved, expires 2028-07-13White Mountain Village and City MJHMP (FEMA plan 108627)2023-07-142028-07-13652

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

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

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

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1Cold WaveRelatively HighRelatively High$5,697$0$4,867,199$4,872,89617
2EarthquakeRelatively LowRelatively Low$484,272n/a$89,980$574,252Storm Events does not record earthquakes.
3Inland FloodingVery LowVery Low$470,387$0$0$470,3879
4Winter WeatherRelatively HighRelatively Moderate$56,239$0$146,077$202,316373
5WildfireVery LowVery Low$18,176$0$1,482$19,6580No recorded events in Storm Events since 1996 (data through 2026-06-30).
6LandslideRelatively LowRelatively Low$464n/a$16,445$16,9090Declared 1 time; no Storm Events record of this type.
7Volcanic ActivityRelatively LowRelatively Low$1,596n/a$5,640$7,2360No recorded events in Storm Events since 1996 (data through 2026-06-30).
8LightningVery LowVery Low$202n/a$5,139$5,3410No recorded events in Storm Events since 1996 (data through 2026-06-30).
9Ice StormVery LowVery Low$2,017n/a$684$2,70111
10AvalancheVery LowVery Low$1n/a$751$7520No recorded events in Storm Events since 1996 (data through 2026-06-30).
11TornadoVery LowVery Lowunder $1$0under $1under $10No recorded events in Storm Events since 1996 (data through 2026-06-30).
12Coastal FloodingNo RatingNo Expected Annual Losses$0n/a$0$039
13DroughtNo RatingNo Expected Annual Lossesn/a$0n/a$00No recorded events in Storm Events since 1996 (data through 2026-06-30).
14HailNo RatingNo Expected Annual Losses$0$0$0$00No recorded events in Storm Events since 1996 (data through 2026-06-30).
15Strong WindNo RatingNo Expected Annual Losses$0$0$0$0151Includes 147 High Wind and 4 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
Heat WaveInsufficient DataInsufficient Datan/an/an/an/a0No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No recorded events in Storm Events since 1996 (data through 2026-06-30).

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

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local wildfire, landslide, volcanic activity, lightning, heat wave and tsunami records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: hurricane. 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.

Coastal Flooding and 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
Avalanchetract 1 (Very Low, 49.1); tract 2 (Very Low, 42.9)
Earthquaketract 2 (Relatively Moderate, 85.0); tract 1 (Relatively Moderate, 83.4)
Landslidetract 1 (Relatively Moderate, 99.0); tract 2 (Very Low, 80.8)
Tornadotract 1 (Very Low, 0.2); tract 2 (Very Low, 0.2)
Tsunamino tract has a National Risk Index rating for this hazard
Volcanic Activitytract 1 (Relatively Moderate, 98.1); tract 2 (Very Low, 75.3)
Wildfiretract 1 (Relatively Moderate, 90.4); tract 2 (Very Low, 56.6)

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 1 is Census Tract 1). 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
Avalanchenone (count and damage only)0
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)39 records, 2002 to 2025 (39 zone-level)Coastal Flood, 2011-11-08, $24,000,000 property; $0 crops (2011 dollars); NWS zone AKZ211Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill17 records, 2001 to 2012 (17 zone-level)1 day to 34 days (median 2 days); 9 with a recorded value2012-01-01 to 2012-02-03 (6 records, 1 of them a monthly summary record), zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)0Storm 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)0
Excessive Heat, Heatheat index (in event narratives)0
Ice StormSperry-Piltz ice scale (local data)11 records, 2013 to 2025 (11 zone-level)No damage reported in 11 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)9 records, 2002 to 2023 (9 zone-level)Flood, 2002-05-21, $1,000,000 property; crops not reported (2002 dollars); NWS zone AKZ211Countywide (zone-level records).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)0Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)151 records, 1997 to 2026 (151 zone-level)35 kt (40 mph) to 81 kt (93 mph) (median 57 kt (66 mph)); 151 with a recorded value81 kt (93 mph) estimated gust, High Wind, 2011-11-08; NWS zone AKZ213High Wind, 2025-10-12, $125,000 property; crops not reported (zone total, 2025 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)0
TornadoEnhanced Fujita (Fujita before Feb 2007)0Before 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).
Tsunaminone (count and damage only)0
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)373 records, 2001 to 2026 (373 zone-level)No damage reported in 373 records.Countywide (zone-level records).

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

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

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

A monthly summary record covers most or all of a month; it does not count days at wave conditions.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 11 declarations covering 9 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

No county-level plan row in FEMA data, so there is no approval date to count from.

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2025-10-222025-10-08DR-4893-AKMajor disasterSevere Storms, Flooding, and Remnants of Typhoon HalongInland Flooding (primary); also designated: Strong Windnone placed in this county by FEMA's record; $89,127.02 for this declaration is not placed in any county (see the state page)within last 5 yearspart of county
2025-01-152024-10-20DR-4859-AKMajor disasterSevere Storm and FloodingInland Flooding; Winter Weather$1,097,049.75within last 5 yearspart of county
2023-08-232023-05-12DR-4730-AKMajor disasterFloodingInland Floodingnone placed in this county by FEMA's record; $386,118.88 for this declaration is not placed in any county (see the state page)within last 5 yearspart of county
2022-09-232022-09-15DR-4672-AKMajor disasterSevere Storm, Flooding, and LandslidesInland Flooding; Landslide$42,742,558.14within last 5 yearspart of county
2020-04-092020-01-20DR-4533-AKMajor disasterCOVID-19 PandemicNon-natural, not counted$4,592,774.23
2020-03-132020-01-20EM-3446-AKEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4533; part of county
2014-01-232013-11-05DR-4162-AKMajor disasterSevere Storms, Straight-Line Winds, and FloodingInland Flooding; Strong Wind$959,026.66part of county
2011-12-222011-11-08DR-4050-AKMajor disasterSevere Winter Storms and FloodingInland Flooding; Winter Weather$3,433,888.18part of county
2005-12-092005-09-22DR-1618-AKMajor disasterSevere Fall Storm, Tidal Surges, and FloodingInland Flooding$163,248.93part of county
2004-11-152004-10-18DR-1571-AKMajor disasterSevere Winter Storm, Tidal Surges and FloodingInland Flooding; Winter Weather$3,233,436part of county
1989-05-101989-01-15DR-826-AKMajor disasterSevere FreezingCold Waveno 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
1964-03-281964-03-28DR-168-AKMajor disasterEarthquakeEarthquake
1955-12-221955-12-22DR-46-AKMajor disasterSevere HardshipOther, not an NRI hazard; not counted
1954-11-101954-11-10DR-31-AKMajor disasterSevere HardshipOther, not an NRI hazard; not counted
1953-10-301953-10-30DR-13-AKMajor disasterSevere HardshipOther, not an NRI hazard; not counted

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.

7 Fire Management declarations (1970-06-26 to 1996-06-05) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance not placed in any Alaska county: 40 rows, $21,127,378.43; listed on the Alaska 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
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding39901996 to 2026-06-30
Cold Wave17011996 to 2026-06-30
Drought0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail0001955 to 2026-06-30No recorded events, 1955 to 2026-06-30, NOAA NCEI Storm Events
Heat Wave0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm11301996 to 2026-06-30
Inland Flooding9281996 to 2026-06-30
Landslide0011996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Strong Wind1513321955 to 2026-06-30Includes 147 High Wind and 4 Strong Wind records.
Tornado0001950 to 2026-06-30No recorded events, 1950 to 2026-06-30, NOAA NCEI Storm Events
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
Wildfire0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather3736731996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-10-12High Wind70 kt (81 mph) measured gust$125,000 property; crops not reported (zone total, 2025 dollars)0, 0NWS zone AKZ824 (EASTERN NORTON SOUND AND NULATO HILLS), zone-levelwithin last 5 yearsB1-c most damaging: High Wind and Strong Wind
2012-01-01Cold/Wind Chill$0 property; $0 crops (zone total, 2012 dollars)0, 0NWS zone AKZ211 (SRN SEWARD PENINSULA COAST), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2011-11-08Coastal Flood$24,000,000 property; $0 crops (zone total, 2011 dollars)0, 0NWS zone AKZ211 (SRN SEWARD PENINSULA COAST), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2011-11-08High Wind81 kt (93 mph) estimated gust$0 property; $0 crops (zone total, 2011 dollars)0, 0NWS zone AKZ213 (ST LAWRENCE IS. BERING STRAIT), zone-levelB1-c worst recorded: High Wind and Strong Wind
2004-12-24Blizzarddamage not reported1, 0NWS zone AKZ213 (ST LAWRENCE IS. BERING STRAIT), zone-leveldeaths or injuries recorded
2002-05-21Flood$1,000,000 property; crops not reported (zone total, 2002 dollars)0, 0NWS zone AKZ211 (SRN SEWARD PENINSULA COAST), zone-levelB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood

The full list is in the Excel file, sheet "B1-d Storm Events history" (600 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
Avalanche0.0333events per yearabout 1 in 30 yearsPossibleFEMA annualized frequency (modeled)11994 to 2023 (30 years)see B1-f
Coastal Flooding0events per year at a location (modeled)none modeledLikelyStorm Events records in 16 of 30 years, 1996 to 2025 (53.3%)not shownmodeledsee B1-fNRI models no coastal flooding event-days here (modeled); Storm Events has a record in 16 of 30 years. The descriptor comes from Storm Events, which records events NRI's definition leaves out.
Cold Wave10.1event-days per yearabout 10.1 days per yearLikelyStorm Events event-days in 7 of 30 years, 1996 to 2025 (23.3%)1582005-11-12 to 2024-11-12 (19 years)countywide
Drought0event-days per yearnone modeledStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)02000 to 2025 (25.25 years; D3 and D4 only)countywideNo Storm Events drought record, 1996 to 2025
Earthquake0.0196annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 1.96%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail0events per yearnone modeledUnlikelyFEMA annualized frequency (modeled)0.0 (modeled)1986 to 2023 (38 years)countywide
Heat Waveevent-days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)2005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events heat wave record, 1996 to 2025
Ice Storm0.0149event-days per yearabout 0.0149 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)01946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding0.005event-days per yearabout 0.005 days per yearLikelyStorm Events event-days in 6 of 30 years, 1996 to 2025 (20%)01996 to 2023 (28 years)see B1-f
Landslide0.276events per year (modeled)about 1 in 4 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning9.58days per year with a strikeabout 9.58 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0events per yearnone modeledUnlikelyFEMA annualized frequency (modeled)01986 to 2023 (38 years)countywide
Tornado0.0000714events per yearabout 1 in 14,003 yearsUnlikelyFEMA 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)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Volcanic Activity0.0002annual probabilityabout 1 in 5,000 yearsUnlikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Wildfire0.000452annual probability at a locationchance a given location in the county burns in a year: 0.0452%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather25.6event-days per yearabout 25.6 days per yearLikelyStorm Events event-days in 24 of 30 years, 1996 to 2025 (80%)4022005-11-12 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 20250300
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20250300
TornadoEF0-11996 to 20250300
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

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

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

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

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Avalanche2 of 242.946.049.1Very Low 2
Coastal Flooding0 of 2No Rating 2
Cold Wave2 of 298.799.3100.0Very High 2
Drought0 of 2No Rating 2
Earthquake2 of 283.484.285.0Relatively Moderate 2
Hail0 of 2No Rating 2
Heat Wave0 of 2Insufficient Data 2
Ice Storm2 of 220.525.229.9Very Low 2
Inland Flooding2 of 213.922.631.4Relatively Low 1, Very Low 1
Landslide2 of 280.889.999.0Relatively Moderate 1, Very Low 1
Lightning2 of 20.521.642.6Relatively Low 1, Very Low 1
Strong Wind0 of 2No Rating 2
Tornado2 of 20.20.20.2Very Low 2
Tsunami0 of 2Insufficient Data 2
Volcanic Activity2 of 275.386.798.1Relatively Moderate 1, Very Low 1
Wildfire2 of 256.673.590.4Relatively Moderate 1, Very Low 1
Winter Weather2 of 299.399.6100.0Very High 2

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, ice storm, lightning 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.

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
Brevig Mission cityCityApproved, expires 2028-10-16FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Diomede cityCityApproved, expires 2028-10-17$575,948.310 total; 0 since its planNo NFIP community ID on this jurisdiction's plan row.
Elim cityCityApproved, expires 2028-10-16FMA RL 0, SRL 0; any 0$8,124,022.910 total; 0 since its plan
Gambell cityCityApproved, expires 2028-10-15FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Golovin cityCityApproved, expires 2028-06-26FMA RL 0, SRL 0; any 0$558,459.750 total; 0 since its plan
Koyuk cityCityApproved, expires 2028-10-15FMA RL 0, SRL 0; any 0$3,378,014.430 total; 0 since its plan
Nome cityCityExpired on 2022-02-03FMA RL 0, SRL 0; any 1$16,853,847.360 total; 0 since its planIncludes $296,377.17 for declarations not counted as hazard incidents (DR-4533-AK).
Savoonga cityCityApproved, expires 2029-06-13FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Shaktoolik cityCityApproved, expires 2028-02-26FMA RL 0, SRL 0; any 0$1,544,585.610 total; 0 since its plan
Shishmaref cityCityApproved, expires 2028-01-08FMA RL 0, SRL 0; any 0$60,256.490 total; 0 since its plan
St. Michael cityCityApproved, expires 2027-11-28FMA RL 0, SRL 0; any 0$1,936,452.220 total; 0 since its plan
Stebbins cityCityExpired on 2018-12-06FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Unalakleet cityCityApproved, expires 2028-10-13$704,855.780 total; 0 since its planNo NFIP community ID on this jurisdiction's plan row.
Wales cityCityApproved, expires 2030-03-26FMA RL 0, SRL 0; any 0$5,448.690 total; 0 since its plan
White Mountain cityCityApproved, expires 2028-07-13FMA RL 0, SRL 0; any 0$8,798.370 total; 0 since its plan

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

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.

No county-level plan row in FEMA data, so there is no approval date to count from.

  • 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 plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$512,505n/a1$1n/a$7510.0001%
Coastal Flooding$0n/a0$0n/a$0building exposure is 0 in NRI
Cold Wave$2,216,199,606$09,908$5,697$0$4,867,1990.000257%
Droughtn/a$0n/an/a$0n/aagriculture exposure is 0 in NRI
Earthquake$3,973,413,831n/a10,046$484,272n/a$89,9800.0122%
Hail$2,237,582,101$010,031$0$0$00%
Heat Waven/an/an/an/an/an/aNRI publishes no building exposure for this county
Ice Storm$2,237,582,101n/a10,031$2,017n/a$684under 0.0001%
Inland Flooding$2,216,175,874$00$470,387$0$0n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$51,641,371n/a172$464n/a$16,4450.000899%
Lightning$2,237,582,101n/a10,031$202n/a$5,139under 0.0001%
Strong Wind$2,237,582,101$010,031$0$0$00%
Tornado$2,237,582,101$010,031under $1$0under $1under 0.0001%
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Volcanic Activity$2,237,582,101n/a10,031$1,596n/a$5,640under 0.0001%
Wildfire$281,918,174$01,822$18,176$0$1,4820.00645%
Winter Weather$2,217,271,546$09,910$56,239$0$146,0770.00254%

Totals since the plan: not available. No county-level plan row in FEMA data, so there is no approval date to count from.

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
Population10,031
Building value (total, not at risk)$2,237,582,101
Agriculture value (total, not at risk)$0
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$1,039,051
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)$5,133,398
Social vulnerability ratingVery High
Community resilience ratingVery Low
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 total and NFIP communities

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0010100
of which: Nome city0010100

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Brevig Mission city0200340000000
Elim city0200440000000
Gambell city0200460000000
Golovin city0200470000000
Koyuk city0200600000000
Nome city0200690010100
Savoonga city0200800000000
Shaktoolik city0200830000000
Shishmaref city0200840000000
St. Michael city0200780000000
Stebbins city0200860000000
Wales city0200950000000
White Mountain city0200960000000

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 residential0000000
2 to 4 unit residential0010100
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). Nome Census Area, AK: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 02180). Automated baseline. https://hazardplain.org/ak/02180/ 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