Hazard Plain Automated baseline

Clearwater County, ID

Risk-assessment baseline packet

County FIPS:
16035
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 2031-08-02. Plan: Clearwater County Hazard Mitigation Plan (FEMA plan 107960), approved 2026-08-03.

Since the plan was approved on 2026-08-03: no new hazard declaration; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($5,432,452 a year), Wildfire ($3,850,658) and Avalanche ($456,668).

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 2031-08-02
Plan:
Clearwater County Hazard Mitigation Plan (FEMA plan 107960)
Approved:
2026-08-03
Days to expiry:
1,767

What changed since your last plan (approved 2026-08-03)

New federal declarations:
none
Storm Events records since approval:
not yet covered: Storm Events data run through 2026-06-30, before the approval date, so there is no period to count yet
Repetitive loss now:
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 0
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 expiry
Clearwater CountyCountyApproved, expires 2031-08-02Clearwater County Hazard Mitigation Plan (FEMA plan 107960)2026-08-032031-08-021,767
Elk River cityCityApproved, expires 2031-08-02Clearwater County Hazard Mitigation Plan (FEMA plan 107960)2026-08-032031-08-021,767
Orofino cityCityApproved, expires 2031-08-02Clearwater County Hazard Mitigation Plan (FEMA plan 107960)2026-08-032031-08-021,767
Pierce cityCityApproved, expires 2031-08-02Clearwater County Hazard Mitigation Plan (FEMA plan 107960)2026-08-032031-08-021,767
Weippe cityCityApproved, expires 2031-08-02Clearwater County Hazard Mitigation Plan (FEMA plan 107960)2026-08-032031-08-021,767

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
1Inland FloodingRelatively LowRelatively Low$5,431,709$24$719$5,432,45212
2WildfireRelatively ModerateRelatively Moderate$3,674,152$136$176,369$3,850,6582
3AvalancheRelatively ModerateRelatively Low$1n/a$456,667$456,6681
4LandslideRelatively ModerateRelatively Moderate$20,309n/a$218,693$239,0031
5Heat WaveVery LowVery Low$26$765$78,777$79,5688
6Cold WaveVery LowVery Low$181$673$47,179$48,0324Includes 4 Frost/Freeze records (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
7EarthquakeVery LowVery Low$21,836n/a$3,483$25,319Storm Events does not record earthquakes.
8Winter WeatherRelatively LowRelatively Low$321$199$24,110$24,630293
9Strong WindVery LowVery Low$8,440$843$9,342$18,62668Includes 32 High Wind and 7 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
10HailVery LowVery Low$4,769$6,165$2,792$13,72630
11LightningVery LowVery Low$1,320n/a$9,086$10,4060No recorded events in Storm Events since 1996 (data through 2026-06-30).
12TornadoVery LowVery Low$1,172$11$5,516$6,6991
13Ice StormVery LowVery Low$828n/a$2,003$2,8320No recorded events in Storm Events since 1996 (data through 2026-06-30).
14DroughtVery LowVery Lown/a$53n/a$530No 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-3244-ID 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).
Volcanic ActivityNot ApplicableNot Applicable0Declared 1 time; no Storm Events record of this type.

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 lightning and volcanic activity 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: coastal flooding and tsunami. 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
Avalanchetract 9701 (Relatively Low, 78.8); tract 9400.01 (Relatively Low, 77.8); tract 9400.02 (Relatively Low, 76.6)
Earthquaketract 9701 (Very Low, 39.9); tract 9400.02 (Very Low, 26.5); tract 9400.01 (Very Low, 24.5)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 9701 (Relatively High, 99.9); tract 9400.02 (Relatively Moderate, 97.9); tract 9400.01 (Relatively Moderate, 96.8)
Tornadotract 9400.02 (Very Low, 8.4); tract 9701 (Very Low, 8.3); tract 9400.01 (Very Low, 4.9)
Volcanic Activityno tract has a National Risk Index rating for this hazard
Wildfiretract 9701 (Very High, 99.7); tract 9400.02 (Very High, 99.3); tract 9400.01 (Relatively High, 98.8)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 9701 is Census Tract 9701). 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)1 record, 2008 (1 zone-level)No damage reported in 1 record.Countywide (zone-level records).
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill0
Frost/Freeze (outside NRI's Cold Wave definition)crop damage4 records, 2019 to 2026 (4 zone-level)No crop damage reported in 4 records.Countywide (zone-level records).
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)35 records, 1966 to 20260.75 in to 2 in (median 1 in); 35 with a recorded value2 in hail, 2016-06-08; same size also recorded on 1975-07-14Hail, 2014-08-14, $104,000 property; $175,000 crops (2014 dollars)Event records naming jurisdictions in the plan: Orofino city (11 records), Weippe city (8 records), Pierce city (3 records), Elk River city (2 records).
Excessive Heat, Heatheat index (in event narratives)8 records, 2018 to 2024 (8 zone-level)2 days to 7 days (median 3 days); 7 with a recorded value7 consecutive days, 2024-07-08 to 2024-07-14, 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)0
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)12 records, 1996 to 2026 (5 zone-level)Flood, 2017-03-16, $3,000,000 property; $0 crops (2017 dollars)Event records naming jurisdictions in the plan: Orofino city (5 records), Weippe city (1 record). Zone-level records (5) 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)1 record, 2021No damage reported in 1 record.No event record names a jurisdiction in the plan.
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)39 records, 1996 to 2025 (39 zone-level)36 kt (41 mph) to 78 kt (90 mph) (median 55 kt (63 mph)); 38 with a recorded value78 kt (90 mph) measured, High Wind, 2001-09-25; NWS zone IDZ007High Wind, 2025-12-17, $140,000 property; $0 crops (zone total, 2025 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)39 records, 1970 to 202250 kt (58 mph) to 64 kt (74 mph) (median 52 kt (60 mph)); 27 with a recorded value64 kt (74 mph) measured, Thunderstorm Wind, 2001-08-12Thunderstorm Wind, 2009-05-07, $60,000 property; $0 crops (2009 dollars)Event records naming jurisdictions in the plan: Orofino city (12 records), Weippe city (4 records), Pierce city (2 records), Elk River city (1 record).
TornadoEnhanced Fujita (Fujita before Feb 2007)1 record, 2007F/EF0; 1 with a recorded valueEF0 tornado, 2007-06-29, 0.25 mi within this county, 50 yd wide, $0 property; $0 crops (2007 dollars)Event records naming jurisdictions in the plan: Orofino 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).
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0
Wildfireacres burned (local data)2 records, 2015 to 2020 (2 zone-level)Wildfire, 2015-08-10, $8,500,000 property; $0 crops (2015 dollars); NWS zone IDZ007Countywide (zone-level records).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)293 records, 1996 to 2026 (293 zone-level)Heavy Snow, 2008-02-08, $7,500,000 property; $0 crops (2008 dollars); NWS zone IDZ007Countywide (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 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.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 15 declarations covering 12 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Storm Events records since the plan: not yet covered: Storm Events data run through 2026-06-30, before the approval date, so there is no period to count yet.

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-06-302026-03-11DR-4917-IDMajor disasterSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesInland Flooding; Landslide; Strong Windno Public Assistance recordedin the 12 months before plan approval; within last 5 years
2026-04-072025-12-16DR-4905-IDMajor disasterStraight-Line WindsStrong Windno Public Assistance recordedin the 12 months before plan approval; within last 5 years
2020-04-092020-01-20DR-4534-IDMajor disasterCOVID-19 PandemicNon-natural, not counted$129,074.50
2020-03-132020-01-20EM-3467-IDEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4534
2017-05-182017-03-06DR-4313-IDMajor disasterSevere Storms, Flooding, Landslides, and MudslidesInland Flooding (primary); also designated: Landslide$515,136.77
2015-08-152015-08-14FM-5105-IDFire managementMunicipal FireWildfireno Public Assistance recorded
2011-05-202011-03-31DR-1987-IDMajor disasterFlooding, Landslides, and MudslidesInland Flooding (primary); also designated: Landslide$85,973.78
2005-09-132005-08-29EM-3244-IDEmergencyHurricane KatrinaHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2000-09-012000-07-27DR-1341-IDMajor disasterWildfiresWildfirePA not declared for this county
1997-01-041996-11-16DR-1154-IDMajor disasterSevere Storms, Flooding, Mud and LandslidesInland Flooding; Landslideno Public Assistance recorded
1996-02-111996-02-06DR-1102-IDMajor disasterSevere Storms and FloodingInland Floodingno Public Assistance recorded
1980-05-221980-05-22DR-624-IDMajor disasterVolcanic Eruption, Mt. St. HelensVolcanic Activityno Public Assistance recorded
1974-01-251974-01-25DR-415-IDMajor disasterSevere Storms, Snowmelt & FloodingInland Floodingno Public Assistance recorded
1967-08-301967-08-30DR-231-IDMajor disasterForest FiresWildfireno Public Assistance recorded
1964-12-311964-12-31DR-186-IDMajor 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
1963-02-141963-02-14DR-143-IDMajor disasterFloodsInland Flooding
1962-02-141962-02-14DR-120-IDMajor disasterFloodsInland Flooding
1961-06-261961-06-26DR-116-IDMajor disasterFloodsInland Flooding
1960-07-221960-07-22DR-105-IDMajor disasterFiresWildfire
1957-05-271957-05-27DR-76-IDMajor disasterFloodInland Flooding
1956-04-211956-04-21DR-55-IDMajor 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.

2 Fire Management declarations (1977-08-20 to 1979-08-08) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance not placed in any Idaho county: 1 row, $107,969.35; listed on the Idaho 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
Avalanche100001996 to 2026-06-30
Cold Wave423001996 to 2026-06-30Includes 4 Frost/Freeze records.
Drought000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Earthquake00000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail3523001955 to 2026-06-30
Heat Wave806001996 to 2026-06-30
Hurricane000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Inland Flooding1211701996 to 2026-06-30
Landslide100401996 to 2026-06-30
Lightning000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Strong Wind7817201955 to 2026-06-30Includes 32 High Wind and 7 Strong Wind records.
Tornado100001950 to 2026-06-30
Volcanic Activity000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Wildfire200301996 to 2026-06-30
Winter Weather293747001996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-12-17High Wind65 kt (75 mph) measured gust$140,000 property; $0 crops (zone total, 2025 dollars)0, 0NWS zone IDZ007 (OROFINO / GRANGEVILLE REGION), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c most damaging: High Wind and Strong Wind
2024-07-08Heat$0 property; $0 crops (zone total, 2024 dollars)0, 0NWS zone IDZ005 (NORTHERN CLEARWATER MOUNTAINS), zone-levelwithin last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2017-03-16Flood$3,000,000 property; $0 crops (2017 dollars)0, 0AHSAHKA to GREERB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2016-06-08Hail2 indamage not reported0, 0GREERB1-c worst recorded: Hail
2015-08-10Wildfire$8,500,000 property; $0 crops (zone total, 2015 dollars)0, 0NWS zone IDZ007 (OROFINO / GRANGEVILLE REGION), zone-levelB1-c worst recorded: Wildfire
2014-08-14Hail1.25 in$104,000 property; $175,000 crops (2014 dollars)0, 0WEIPPEB1-c most damaging: Hail
2009-05-07Thunderstorm Wind50 kt (58 mph) estimated gust$60,000 property; $0 crops (2009 dollars)0, 0OROFINO ARPTB1-c most damaging: Thunderstorm Wind
2008-02-08Heavy Snow$7,500,000 property; $0 crops (zone total, 2008 dollars)0, 0NWS zone IDZ007 (OROFINO / GRANGEVILLE REGION), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2007-06-29TornadoEF0, 0.25 mi within this county, 50 yd wide$0 property; $0 crops (2007 dollars)0, 0OROFINOB1-c worst recorded: Tornado
2001-09-25High Wind78 kt (90 mph) measureddamage not reported0, 0NWS zone IDZ007 (OROFINO / GRANGEVILLE REGION), zone-levelB1-c worst recorded: High Wind and Strong Wind
2001-08-12Thunderstorm Wind64 kt (74 mph) measureddamage not reported0, 0DENTB1-c worst recorded: Thunderstorm Wind
1997-03-30High Wind70 kt (81 mph), measurement type not recorded$10,000 property; crops not reported (zone total, 1997 dollars)0, 1NWS zone IDZ005 (CLEARWATER T X SW), zone-leveldeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (435 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
Cold Wave0.419event-days per yearabout 0.419 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)7.952005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events cold wave record, 1996 to 2025.
Drought30.5event-days per yearabout 30.5 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)7912000 to 2025 (25.25 years; D3 and D4 only)countywideNo Storm Events drought record, 1996 to 2025
Earthquake0.0014annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.14%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail0.297events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)11.3 (modeled)1986 to 2023 (38 years)countywide
Heat Wave2.48event-days per yearabout 2.48 days per yearLikelyStorm Events event-days in 5 of 30 years, 1996 to 2025 (16.7%)31.82005-11-12 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 Storm0.0274event-days per yearabout 0.0274 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)21946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding0.286event-days per yearabout 0.286 days per yearLikelyStorm Events event-days in 7 of 30 years, 1996 to 2025 (23.3%)81996 to 2023 (28 years)see B1-f
Landslide1.86events per year (modeled)about 1.86 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning18.6days per year with a strikeabout 18.6 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.197events per yearabout 1 in 5 yearsLikelyFEMA annualized frequency (modeled)81986 to 2023 (38 years)countywide
Tornado0.0359events per yearabout 1 in 28 yearsPossibleFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.00869annual probability at a locationchance a given location in the county burns in a year: 0.869%PossibleStorm Events records in 2 of 30 years, 1996 to 2025 (6.67%)not shownmodeledsee B1-f
Winter Weather40.2event-days per yearabout 40.2 days per yearHighly likelyStorm Events event-days in 30 of 30 years, 1996 to 2025 (100%)7632005-11-12 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 202519300.633
Hail2.00 in+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202527300.9
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 20252300.0667
TornadoEF0-11996 to 20251300.0333
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
Avalanche3 of 376.677.878.8Relatively Low 3
Cold Wave3 of 324.729.944.1Relatively Low 3
Drought3 of 369.670.171.1Very Low 3
Earthquake3 of 324.526.539.9Very Low 3
Hail3 of 337.745.457.8Relatively Low 3
Heat Wave3 of 336.452.453.8Relatively Low 3
Hurricane0 of 3Not Applicable 3
Ice Storm3 of 310.420.321.9Very Low 3
Inland Flooding3 of 371.096.799.2Very High 2, Relatively Moderate 1
Landslide3 of 396.897.999.9Relatively High 1, Relatively Moderate 2
Lightning3 of 319.430.331.3Relatively Low 2, Very Low 1
Strong Wind3 of 323.735.438.9Relatively Low 3
Tornado3 of 34.98.38.4Very Low 3
Volcanic Activity0 of 3Not Applicable 3
Wildfire3 of 398.899.399.7Very High 2, Relatively High 1
Winter Weather3 of 375.185.788.6Relatively High 2, Relatively Moderate 1

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

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).

This county has 3 census tracts; the minimum, median and maximum come from those 3.

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its plan
Clearwater CountyCountyApproved, expires 2031-08-02FMA RL 0, SRL 0; any 0$538,260.900 total; not yet covered
Elk River cityCityApproved, expires 2031-08-02FMA RL 0, SRL 0; any 0no Public Assistance recorded3 total; not yet covered
Orofino cityCityApproved, expires 2031-08-02FMA RL 0, SRL 0; any 0$12,566.4529 total; not yet covered
Pierce cityCityApproved, expires 2031-08-02FMA RL 0, SRL 0; any 0no Public Assistance recorded5 total; not yet covered
Weippe cityCityApproved, expires 2031-08-02FMA RL 0, SRL 0; any 0no Public Assistance recorded13 total; not yet covered

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.

  • 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 2026-08-03county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$870,577n/a10$1n/a$456,6670.0001%
Cold Wave$2,461,645,814$9,430,5848,728$181$673$47,179under 0.0001%
Droughtn/a$2,980,139n/an/a$53n/a0.00178% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$4,272,701,324n/a8,734$21,836n/a$3,4830.000511%
Hail$2,461,645,814$9,430,5848,728$4,769$6,165$2,7920.000194%
Heat Wave$2,461,645,814$9,430,5848,728$26$765$78,777under 0.0001%
HurricaneNot Applicable in NRI for this county
Ice Storm$2,461,645,814n/a8,728$828n/a$2,003under 0.0001%
Inland Flooding$2,459,004,169$110,665545$5,431,709$24$719n/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$335,076,288n/a1,367$20,309n/a$218,6930.00606%
Lightning$2,461,645,814n/a8,728$1,320n/a$9,086under 0.0001%
Strong Wind$2,461,645,814$9,430,5848,728$8,440$843$9,3420.000343%
Tornado$2,461,645,814$9,430,5848,728$1,172$11$5,516under 0.0001%
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$1,278,419,214$5,807,8145,953$3,674,152$136$176,3690.287%
Winter Weather$2,461,645,814$9,430,5848,728$321$199$24,110under 0.0001%

Totals since 2026-08-03: Storm Events not yet covered: Storm Events data run through 2026-06-30, before the approval date, so there is no period to count yet; Public Assistance: no counted declaration since the plan.

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

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

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

County context

Source: 5

MeasureValue
Population8,728
Building value (total, not at risk)$2,461,645,814
Agriculture value (total, not at risk)$9,430,584
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$9,173,934
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)$1,034,735
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 definition0Severe 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 total0000000

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Clearwater County1600460000000
Elk River city1601350000000
Orofino city1600470000000
Pierce city1600480000000
Weippe city1600490000000

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: 0 in every occupancy group.

Sources: 1, 4

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

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

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

Exact counts; no count suppression.

Sources

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

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

What this packet is and what the plan adds

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

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

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

OpenFEMA disclaimer

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

Reuse, citation and corrections

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

Cite this: Hazard Plain (2026). Clearwater County, ID: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 16035). Automated baseline. https://hazardplain.org/id/16035/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: [email protected]