Hazard Plain Preview: automated baseline

Nevada County, AR

Risk-assessment baseline packet

Unit
County area 05099
Release
2026-10
As of
2026-09-28
Storm Events data through
2026-06-30

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

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

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

Plan clock

Status
No approved plan on record
Plan
none
Approved
none
Expires
none
As of
2026-09-28
Update underway
FEMA tracker shows a plan in progress

FEMA's plan status data lists no approved plan for this jurisdiction.

What changed since your last plan

Not available. No approved plan on record, so there is no approval date to count from.

Sources

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

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

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

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

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Nevada County (unincorporated area)UnincorporatedNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Bluff City townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Bodcaw townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Cale townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Emmet cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Prescott cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Rosston townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Willisville townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Nevada School DistrictSchool/School DistrictNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Prescott School DistrictSchool/School DistrictNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress

Source

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

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

Supports B1-a: hazards

Hazards NRI does not cover: check locally

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

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

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Ice StormVery HighVery High$1,894,328$96,448$1,990,7766
2Inland FloodingVery LowVery Low$1,539,142$37,345$54,890$1,631,37744
3TornadoRelatively LowRelatively Low$288,831$2,502$354,967$646,30014
4HailRelatively LowRelatively Low$266,559$40,938$21,619$329,11769
5Strong WindRelatively LowRelatively Low$134,681$254$152,926$287,86090Includes 1 Strong Wind record, event types the NRI definition of this hazard leaves out.
6Heat WaveRelatively LowRelatively Low$71$356$275,791$276,21976
7EarthquakeVery LowVery Low$155,372$71,254$226,626Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
8LightningRelatively LowRelatively Low$8,674$120,498$129,1721
9HurricaneVery LowVery Low$51,846$31,762$1,342$84,9502
10DroughtRelatively LowRelatively Low$45,412$45,41233
11Cold WaveVery LowVery Low$5,202$95$22,976$28,2727
12Winter WeatherRelatively LowRelatively Low$17,014$392$1,043$18,44837
13WildfireVery LowVery Low$6,562$66$1,200$7,8281
14LandslideVery LowVery Low$67$8$750No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

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

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

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 3
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 3
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.1 of 3
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.3 of 3
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.3 of 3
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
Inland FloodingThe FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.3 of 3
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.3 of 3
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.3 of 3
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 3
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 3
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.3 of 3
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.3 of 3

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill7, 2010 to 2026 (7 zone-level)3 days to 4 days (median 3.5 days); 6 with a recorded value4 consecutive days, 2026-01-24 to 2026-01-27, zone-levelCold/Wind Chill, 2010-01-07, $100,000 property; $0 crops, reported for the zone (2010 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage0Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale33, 2005 to 2026 (33 zone-level)7 days to 202 days (median 37.5 days); 12 with a recorded value202 days (about 6.6 months), 2010-10-01 to 2011-04-20, a run of 7 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)130, 1967 to 20260.75 in to 3 in (median 1 in); 130 with a recorded value3 in hail, 2001-05-18Hail, 1998-01-06, $10,000 property; crops not reported (1998 dollars)Event records naming member places: Rosston town (20 records), Prescott city (14 records), Willisville town (12 records), Emmet city (6 records), Bluff City town (5 records), Bodcaw town (3 records), Cale town (1 record).
Excessive Heat, Heatheat index (narratives)76, 2011 to 2025 (76 zone-level)1 day to 94 days (median 4 days); 54 with a recorded value94 days, 2011-06-01 to 2011-09-02, from 4 records, 3 of them monthly summaries (a monthly summary record covers most or all of a month; it does not count days at wave conditions), zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson2, 2008 to 2020 (2 zone-level)Strongest recorded (records with damage, a wind speed or direct casualties first, then storm type, category and wind): Tropical Storm record, 2008-09-13, $100,000 property; $0 crops, reported for the zone (2008 dollars); NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)6, 1996 to 2000 (6 zone-level)Ice Storm, 2000-12-12, $40,000,000 property; crops not reported, reported for the zone (2000 dollars); NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)44, 1998 to 2025Flash Flood, 2009-10-13, $100,000 property; $0 crops (2009 dollars)Event records naming member places: Prescott city (13 records), Emmet city (5 records), Bodcaw town (3 records), Rosston town (2 records).Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)1, 2010 to 2010Lightning, 2010-08-15, $5,000 property; $0 crops (2010 dollars)Event records naming member places: Prescott city (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)1, 2008 to 2008 (1 zone-level)43 kt (49 mph); 1 with a recorded value43 kt (49 mph) estimated gust, Strong Wind, 2008-10-06; NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)142, 1956 to 202652 kt (60 mph) to 70 kt (81 mph) (median 55 kt (63 mph)); 97 with a recorded value70 kt (81 mph) estimated gust, Thunderstorm Wind, 2020-05-25; same speed and measurement basis also recorded on 2011-04-04Thunderstorm Wind, 1994-06-30, $500,000 property; crops not recorded (1994 dollars)Event records naming member places: Prescott city (26 records), Bodcaw town (8 records), Rosston town (7 records), Emmet city (6 records), Willisville town (5 records), Bluff City town (3 records), Cale town (1 record).Speeds under 20 kt (likely entry errors) are left out of the observed range.
TornadoEnhanced Fujita (F before Feb 2007)24, 1954 to 2026F/EF0 to F/EF3 (median F/EF1); 24 with a recorded valueF3 tornado, 1997-03-01, 14 mi within this county, 880 yd wide, $2,000,000 property; crops not reported (1997 dollars), 2 direct injuriesEvent records naming member places: Bluff City town (2 records), Bodcaw town (2 records), Prescott city (2 records), Willisville town (2 records), Cale town (1 record), Rosston town (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)1, 2011 to 2011 (1 zone-level)No damage reported in 1 records.Zone-level records: applies countywide; national data do not locate these events within the county.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)37, 2000 to 2026 (37 zone-level)No damage reported in 37 records.Zone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

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

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

Sources

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

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

Supports B1-d: previous occurrences

Declaration rows
26
Counted incidents
20

No approved plan on record, so there is no approval date to count from.

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-01-242026-01-23EM-3636-AREmergencySEVERE WINTER STORMWinter Weathernone foundwithin last 5 years
2025-05-212025-04-02DR-4873-ARMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding (primary); also designated: Tornado$614,832.50within last 5 years
2025-04-052025-04-02EM-3627-AREmergencySEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornadonone foundwithin last 5 yearssame incident as DR-4873
2024-05-302024-05-24DR-4788-ARMajor disasterSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGInland Flooding; Strong Wind; Tornado$924,506.03within last 5 years
2023-04-042023-01-30DR-4700-ARMajor disasterSEVERE WINTER STORMWinter Weather$1,668,937.86within last 5 years
2020-08-272020-08-26EM-3541-AREmergencyHURRICANE LAURAHurricanenone found
2020-04-032020-01-20DR-4518-ARMajor disasterCOVID-19 PANDEMICNon-natural, not countednone found
2020-03-132020-01-20EM-3461-AREmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4518
2015-06-262015-05-07DR-4226-ARMajor disasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGInland Flooding; Strong Wind; Tornado$225,312.15
2011-05-022011-04-14DR-1975-ARMajor disasterSEVERE STORMS, TORNADOES, AND ASSOCIATED FLOODINGInland Flooding; Tornado$84,350.33
2010-02-042009-12-23DR-1872-ARMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$214,712.55
2009-12-032009-10-29DR-1861-ARMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$133,202.78
2009-06-162009-04-27DR-1845-ARMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$186,506.47
2008-10-222008-09-13DR-1804-ARMajor disasterTROPICAL STORM IKEHurricanenone found
2008-03-262008-03-18DR-1751-ARMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; Tornado$48,942.96
2005-09-022005-08-29EM-3215-AREmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2004-06-302004-05-30DR-1528-ARMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$144,454.96
2003-06-062003-05-02DR-1472-ARMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; TornadoPA not declared for this county
2001-03-132001-02-14DR-1363-ARMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$155,079
2000-12-292000-12-12DR-1354-ARMajor disasterSEVERE WINTER ICE STORMIce Storm (primary); also designated: Cold Wave$5,733,820.43
2000-12-282000-12-12EM-3159-AREmergencySEVERE WINTER ICE STORMIce Stormnone foundsame incident as DR-1354
1997-03-021997-03-01DR-1162-ARMajor disasterSEVERE STORMS AND TORNADOESTornadonone found
1992-07-241992-06-14DR-950-ARMajor disasterSEVERE THUNDERSTORMSHazard not mapped (severe storm title names no single hazard); not countednone found
1991-05-301991-04-12DR-907-ARMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1988-11-231988-11-15DR-817-ARMajor disasterSEVERE STORMS & TORNADOESTornadoPA not declared for this county
1979-04-111979-04-11DR-574-ARMajor disasterTORNADOTornadoPA not declared for this county

School districts and special districts in this county: $15,321.75 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan members in this county. They are not shown as member blocks, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county); do not add this line to the county total.

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

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

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1964-03-201964-03-20DR-166-ARMajor disasterSEVERE STORMS & FLOODINGInland Flooding
1963-08-021963-08-02DR-157-ARMajor disasterHEAVY RAINS & FLOODINGInland Flooding
1961-05-161961-05-16DR-112-ARMajor disasterFLOODS & TORNADOESInland Flooding (primary); also designated: Tornado
1960-05-281960-05-28DR-102-ARMajor disasterTORNADOES & FLOODSTornado (primary); also designated: Inland Flooding
1958-05-151958-05-15DR-83-ARMajor disasterHEAVY RAINSTORMS & FLOODSInland Flooding
1957-05-291957-05-29DR-77-ARMajor disasterTORNADOES, RAIN, HAIL & FLOODSTornado (primary); also designated: Hail, Inland Flooding

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

Source

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

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave7411996 to 2026-06-30
Drought331101996 to 2026-06-30
Earthquake000No Storm Events record; local data required (e.g., USGS).
Hail130501955 to 2026-06-30
Heat Wave763901996 to 2026-06-30
Hurricane2021996 to 2026-06-30
Ice Storm6011996 to 2026-06-30
Inland Flooding445121996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning1001996 to 2026-06-30
Strong Wind1431421955 to 2026-06-30Includes 1 Strong Wind record, event types the NRI definition of this hazard leaves out.
Tornado245111950 to 2026-06-30
Tsunami0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire1001996 to 2026-06-30
Winter Weather371021996 to 2026-06-30

Sources

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

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

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

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2020-05-25Thunderstorm Wind70 kt (81 mph) estimated gust$0 property; $0 crops (2020 dollars)0, 0WEAVERB1-c worst recorded: Thunderstorm Wind
2011-06-01Excessive Heat$0 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2010-08-15Lightning$5,000 property; $0 crops (2010 dollars)0, 0PRESCOTTB1-c worst recorded: Lightning
2009-10-13Flash Flood$100,000 property; $0 crops (2009 dollars)0, 0DIAN to WEAVERB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2008-10-06Strong Wind43 kt (49 mph) estimated gust$300 property; $0 crops, reported for the zone (2008 dollars)0, 0NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
2008-09-13Tropical Storm$100,000 property; $0 crops, reported for the zone (2008 dollars)0, 0NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2001-05-18Hail3 indamage not reported0, 0EMMETB1-c worst recorded: Hail
2000-12-12Ice Storm$40,000,000 property; crops not reported, reported for the zone (2000 dollars)0, 0NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesB1-c worst recorded: Ice Storm
1998-02-11Flash Flooddamage not reported1, 0PRESCOTTdeaths or injuries recorded
1997-03-01TornadoF3, 14 mi within this county, 880 yd wide$2,000,000 property; crops not reported (1997 dollars)0, 2HOPE to PRESCOTTB1-c worst recorded: Tornado
1996-02-04Ice Storm$10,000 property; $0 crops, reported for the zone (1996 dollars)1, 0NWS zone ARZ061 (NEVADA), zone-level: may include parts of neighboring countiesdeaths or injuries recorded
1988-11-15Thunderstorm Wind70 kt (81 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 4location not recordeddeaths or injuries recorded

The full list is in the XLSX file, sheet "B1-d Storm Events history" (504 rows).

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

Sources

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

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

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

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

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

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave0.895event-days per yearabout 0.895 days per yearLikelyevent-days in 5 of 30 years, 1996 to 2025 (16.7%)172005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought17.2event-days per yearabout 17.2 days per yearLikelyevent-days in 10 of 30 years, 1996 to 2025 (33.3%)4832000 to 2025 (25.25 years; D3 and D4 only)countywideNRI gives about 17.2 drought event-days a year here (its annualized frequency over 25.25 years; not its event count divided by the years), but Storm Events has a record in only 10 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Earthquake0.00239annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.239%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail4.68events per yearabout 4.68 per yearHighly likelyFEMA annualized frequency (modeled)178.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave18.2event-days per yearabout 18.2 days per yearLikelyevent-days in 12 of 30 years, 1996 to 2025 (40%)3002005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 18.2 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 12 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.039events per yearabout 1 in 26 yearsPossibleFEMA annualized frequency (modeled)101851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm0.699event-days per yearabout 0.699 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)471946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding0.714event-days per yearabout 0.714 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)201996 to 2023 (28 years)see B1-f
Landslide0.201events per year (modeled)about 1 in 5 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning63.8days per year with a strikeabout 63.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind4.02events per yearabout 4.02 per yearHighly likelyFEMA annualized frequency (modeled)1531986 to 2023 (38 years)countywide
Tornado0.391events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.000533annual probability at a locationchance a given location in the county burns in a year: 0.0533%PossibleStorm Events records in 1 of 30 years, 1996 to 2025 (3.33%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI: the NRI value is the chance at a location in the county, not how often the hazard affects the county.
Winter Weather4.58event-days per yearabout 4.58 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)872005-11-12 to 2024-11-12 (19 years)countywide

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

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

Descriptor scale used in this packet (defined per unit)

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

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

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202533301.1
Hail2.00 in+1996 to 20255300.167
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 202578302.6
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 202510300.333
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20250300
TornadoEF0-11996 to 202511300.367
TornadoEF2-31996 to 20252300.0667
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

Source

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

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

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 3Not Applicable 3
Coastal Flooding0 of 3Not Applicable 3
Cold Wave3 of 321.925.335.8Relatively Low 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought1 of 394.894.894.8Relatively Moderate 1, No Rating 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake3 of 350.068.182.3Relatively Moderate 1, Relatively Low 2
Hail3 of 389.793.697.9Relatively High 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave3 of 366.481.893.9Relatively High 1, Relatively Moderate 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane3 of 361.664.172.6Relatively Low 3
Ice Storm3 of 399.9100.0100.0Very High 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding3 of 326.558.389.9Relatively High 1, Relatively Moderate 1, Relatively Low 1
Landslide3 of 361.966.780.4Very Low 3
Lightning3 of 379.892.598.9Very High 1, Relatively High 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind3 of 388.492.598.3Very High 1, Relatively High 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado3 of 371.381.796.6Very High 1, Relatively High 1, Relatively Moderate 1
Tsunami0 of 3Not Applicable 3
Volcanic Activity0 of 3Not Applicable 3
Wildfire3 of 377.277.778.9Relatively Low 3
Winter Weather3 of 365.676.390.3Relatively High 1, Relatively Moderate 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Nevada County (unincorporated area)UnincorporatedNo approved plan on recordFMA RL 0, SRL 0; any 0$8,322,087.310; no approved plan
Bluff City townTownNo approved plan on recordFMA RL 0, SRL 0; any 0none found10; no approved plan
Bodcaw townTownNo approved plan on recordFMA RL 0, SRL 0; any 0$327,854.2916; no approved plan
Cale townTownNo approved plan on record$2,3503; no approved planNo NFIP community ID on this member's plan row.
Emmet cityCityNo approved plan on recordFMA RL 0, SRL 0; any 0$148,247.9217; no approved plan
Prescott cityCityNo approved plan on recordFMA RL 0, SRL 0; any 0$1,111,668.8156; no approved plan
Rosston townTownNo approved plan on recordFMA RL 0, SRL 0; any 0$204,584.6130; no approved plan
Willisville townTownNo approved plan on recordFMA RL 0, SRL 0; any 0$2,543.3319; no approved plan

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

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

Sources

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

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

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

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

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

Local data required

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

No approved plan on record, so there is no approval date to count from.

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

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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$1,969,637,254$71,746,1198,255$5,202$95$22,9760.000264%
Drought$1,569,941$45,4122.89% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$3,139,109,4748,310$155,372$71,2540.00495%
Hail$1,969,637,254$71,746,1198,255$266,559$40,938$21,6190.0135%
Heat Wave$1,969,637,254$71,746,1198,255$71$356$275,791under 0.0001%
Hurricane$1,968,345,619$71,368,1038,245$51,846$31,762$1,3420.00263%
Ice Storm$1,969,637,2548,255$1,894,328$96,4480.0962%
Inland Flooding$1,968,817,245$3,812,55874$1,539,142$37,345$54,890n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. EAL as % of exposure: n/a.
Landslide$6,146,92923$67$80.0011%
Lightning$1,969,637,2548,255$8,674$120,4980.00044%
Strong Wind$1,969,637,254$71,746,1198,255$134,681$254$152,9260.00684%
Tornado$1,969,637,254$71,746,1198,255$288,831$2,502$354,9670.0147%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$365,477,524$16,105,2471,917$6,562$66$1,2000.0018%
Winter Weather$1,969,637,254$71,746,1198,255$17,014$392$1,0430.000864%

Totals since the plan: not available. No approved plan on record, so there is no approval date to count from.

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

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

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

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

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

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

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

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

Supports B2-a: context

County context

MeasureValue
Population8,255
Building value (total, not at risk)$1,969,637,254
Agriculture value (total, not at risk)$71,746,119
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$4,527,471
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)$1,174,961
Social vulnerability ratingVery High
Community resilience ratingVery Low
NRI versionDecember 2025

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

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

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

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

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0000000
State level, not in this county: county not reported0030300

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Nevada County (unincorporated area)0504540000000
Bluff City town0503910000000
Bodcaw town0504740000000
Emmet city0504110000000
Prescott city0501590000000
Rosston town0504750000000
Willisville town0505710000000

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

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

County repeat-flood properties by occupancy group

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

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

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

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

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

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

Exact counts; no count suppression.

Sources

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

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-28, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx

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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.

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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). Nevada County, AR: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 05099). Preview: automated baseline. Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_AR_05099. Preview: automated baseline.