Hazard Plain Preview: automated baseline

Yavapai County, AZ

Risk-assessment baseline packet

Unit
County area 04025
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
Approved, expires 2029-01-02
Plan
Yavapai County (FEMA plan 108225)
Approved
2024-01-03
Expires
2029-01-02
As of
2026-09-28
Days
827 days to expiry

What changed since your last plan (approved 2024-01-03)

New federal declarations
none (0 declaration rows; 0 counted incidents)
Storm Events records since approval
66 (data through 2026-06-30)
Repetitive loss now
FMA RL 3, SRL 5 (44 CFR 77.2); any definition: 27
Repeat-flood change
First release: no prior release to compare.

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
Yavapai CountyCountyApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-01-02
Camp Verde townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-06-17
Chino Valley townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-02-01
Clarkdale townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-03-11
Cottonwood cityCityPlan 108225 approved 2024-01-03, pending adoption here; not yet eligibleYavapai County (FEMA plan 108225), pending adoption here2024-01-03 by FEMA; not yet adopted here2029-01-02 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Dewey-Humboldt townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-02-23
Jerome townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-03-21
Peoria cityCityApproved, expires 2027-05-10Maricopa County (FEMA plan 107585)2022-05-112027-05-10224
Prescott cityCityApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-02-20
Prescott Valley townTownApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2024-04-29
Sedona cityCityApproved, expires 2029-01-02Yavapai County (FEMA plan 108225)2024-01-032029-01-02827member approved 2025-07-07
Wickenburg townTownApproved, expires 2027-05-10Maricopa County (FEMA plan 107585)2022-05-112027-05-10224

Plan 108225 lists 1 other participant not on this page. Not covered by it yet: Yavapai-Prescott Indian Tribe (approvable pending adoption, not yet adopted).

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
1Inland FloodingRelatively HighRelatively High$61,359,714$204,447$8,108,886$69,673,046357
2WildfireRelatively HighRelatively High$27,409,250$332$1,297,878$28,707,46028
3LightningVery HighVery High$31,208$3,140,045$3,171,25314
4EarthquakeRelatively LowRelatively Low$1,846,556$337,526$2,184,081Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
5Heat WaveRelatively ModerateRelatively Moderate$80$7,513$1,515,638$1,523,2326
6HailRelatively ModerateRelatively Moderate$862,650$5$415,061$1,277,715161
7Winter WeatherRelatively HighRelatively High$4,938under $1$456,325$461,26274
8TornadoRelatively LowRelatively Low$254,775$615$195,697$451,08717
9Strong WindRelatively LowRelatively Low$143,602$170$179,686$323,458173Includes 37 High Wind records and 5 Strong Wind records, event types the NRI definition of this hazard leaves out.
10DroughtVery LowVery Low$17,333$17,3330Declared 1 time; no Storm Events record of this type.
11LandslideRelatively LowVery Low$499$4,024$4,52310
12AvalancheVery LowVery Low$2$558$5600No recorded events in Storm Events since 1996 (data through 2026-06-30).
13Volcanic ActivityVery LowVery Lowunder $1$16$160No 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.
14Cold WaveVery LowVery Low$1$0$4$52
15HurricaneNo RatingNo Expected Annual Losses$0$0$0$00No 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).
Ice StormNot ApplicableNot Applicable0NRI rates ice storm 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.

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.23 of 72
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 72
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 72
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.16 of 72
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.72 of 72
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.72 of 72
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.72 of 72
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 72
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.0 of 72
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.72 of 72
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.72 of 72
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.72 of 72
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.72 of 72
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.72 of 72
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 72
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.24 of 72
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.72 of 72
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.72 of 72

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 chill2, 2011 to 2013 (2 zone-level)1 day to 2 days (median 1.5 days); 2 with a recorded value2 consecutive days, 2013-12-08 to 2013-12-09, zone-levelCold/Wind Chill, 2011-01-01, $70,000 property; $0 crops, reported for the zone (2011 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-scale0Storm 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)183, 1962 to 20250.25 in to 4.5 in (median 1 in); 183 with a recorded value4.5 in hail, 1995-09-28Hail, 1999-09-15, $18,000,000 property; $0 crops (1999 dollars)Event records naming member places: Prescott city (33 records), Camp Verde town (11 records), Prescott Valley town (6 records), Cottonwood city (5 records), Clarkdale town (2 records), Sedona city (2 records), Chino Valley town (1 record).
Excessive Heat, Heatheat index (narratives)6, 2013 to 2017 (6 zone-level)1 day to 9 days (median 1.5 days); 4 with a recorded value9 consecutive days, 2017-06-16 to 2017-06-24, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)0Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)357, 1996 to 2026 (5 zone-level)Flash Flood, 2017-07-19, $7,000,000 property; $0 crops (2017 dollars)Event records naming member places: Camp Verde town (13 records), Prescott city (11 records), Clarkdale town (5 records), Cottonwood city (5 records), Prescott Valley town (2 records). Zone-level records (5) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)10, 2004 to 2011 (10 zone-level)Debris Flow, 2011-07-11, $10,000 property; $0 crops, reported for the zone (2011 dollars); NWS zone AZZ037 (YAVAPAI COUNTY VALLEYS AND BASINS), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)14, 1996 to 2018Lightning, 2004-08-18, $100,000 property; crops not reported (2004 dollars)Event records naming member places: Prescott city (5 records), Cottonwood city (2 records), Prescott Valley town (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)42, 1996 to 2026 (42 zone-level)35 kt (40 mph) to 77 kt (89 mph) (median 54 kt (62 mph)); 41 with a recorded value77 kt (89 mph) measured, High Wind, 2000-11-18; NWS zone AZZ008 (YAVAPAI COUNTY MOUNTAINS), zone-level: may include parts of neighboring countiesHigh Wind, 2009-12-07, $400,000 property; $0 crops, reported for the zone (2009 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)163, 1961 to 202540 kt (46 mph) to 100 kt (115 mph) (median 52 kt (60 mph)); 139 with a recorded value100 kt (115 mph), measurement type not recorded, Thunderstorm Wind, 1996-07-04Thunderstorm Wind, 2015-08-23, $1,000,000 property; $0 crops (2015 dollars)Event records naming member places: Camp Verde town (12 records), Prescott city (8 records), Cottonwood city (5 records), Chino Valley town (1 record), Clarkdale town (1 record), Sedona city (1 record).
TornadoEnhanced Fujita (F before Feb 2007)29, 1952 to 2025F/EF0 to F/EF3 (median F/EF0); 25 with a recorded valueF3 tornado, 1972-08-10, 33 yd wide, $30 property; crops not recorded (1972 dollars)Tornado, 2014-09-27, $500,000 property; $0 crops (2014 dollars)Event records naming member places: Prescott city (2 records), Camp Verde town (1 record), Jerome 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)28, 1996 to 2022 (25 zone-level)Wildfire, 2014-05-20, $7,000,000 property; $0 crops, reported for the zone (2014 dollars); NWS zone AZZ038 (OAK CREEK AND SYCAMORE CANYONS), zone-level: may include parts of neighboring countiesEvent records naming member places: Prescott city (1 record). Zone-level records (25) apply countywide.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)74, 1997 to 2026 (74 zone-level)No damage reported in 74 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
23

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2022-04-192022-04-18FM-5435-AZFire managementCROOKS FIREWildfirenone foundwithin last 5 years
2021-05-272021-05-27FM-5387-AZFire managementSPUR FIREWildfirenone found
2020-04-042020-01-20DR-4524-AZMajor disasterCOVID-19 PANDEMICNon-natural, not counted$4,292,048.23
2020-03-132020-01-20EM-3442-AZEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4524
2018-05-112018-05-11FM-5238-AZFire management89 EAST FIREWildfirenone found
2017-06-252017-06-24FM-5186-AZFire managementGOODWIN FIREWildfirenone found
2016-06-082016-06-08FM-5125-AZFire managementTENDERFOOT FIREWildfirenone found
2013-06-302013-06-30FM-5032-AZFire managementYARNELL HILL FIREWildfirenone found
2013-06-192013-06-18FM-5029-AZFire managementDOCE FIREWildfirenone found
2010-03-182010-01-18DR-1888-AZMajor disasterSEVERE WINTER STORMS AND FLOODINGInland Flooding; Winter Weather$131,314.57
2008-06-292008-06-29FM-2779-AZFire managementLANE 2 FIREWildfirenone found
2006-06-022006-06-01FM-2640-AZFire managementLA BARRANCA FIREWildfirenone found
2005-09-122005-08-29EM-3241-AZEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2005-06-232005-06-22FM-2562-AZFire managementAZ-HUMBUG FIRE 06-23--2005Wildfirenone found
2005-06-222005-06-21FM-2561-AZFire managementCAVE CREEK FIRE COMPLEXWildfirenone found
2005-04-142005-02-10DR-1586-AZMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$2,590,019.08
2005-02-172004-12-28DR-1581-AZMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$1,719,103.49
2004-06-282004-06-24FM-2523-AZFire managementWILLOW FIREWildfirenone found
2002-05-152002-05-15FM-2406-AZFire managementAZ - INDIAN FIRE - 5/15/2002Wildfirenone found
2000-10-272000-10-21DR-1347-AZMajor disasterSEVERE STORMS AND FLOODINGInland FloodingPA not declared for this county
1993-01-191993-01-05DR-977-AZMajor disasterSEVERE STORMS, TORNADOES & FLOODINGInland Flooding (primary); also designated: Tornadonone found
1990-12-061990-07-08DR-884-AZMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1983-10-051983-09-23DR-691-AZMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1980-02-191980-02-19DR-614-AZMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1978-03-041978-03-04DR-551-AZMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1977-04-151977-04-15EM-3038-AZEmergencyDROUGHTDroughtnone found

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.

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave2000001996 to 2026-06-30
Drought0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail1839419001955 to 2026-06-30
Heat Wave6000001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Inland Flooding3573917102901996 to 2026-06-30
Landslide10000001996 to 2026-06-30
Lightning14000001996 to 2026-06-30
Strong Wind20511838001955 to 2026-06-30Includes 37 High Wind records and 5 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado29124101950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire280031301996 to 2026-06-30
Winter Weather746617101996 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
2025-11-18Flash Flood$0 property; $0 crops (2025 dollars)1, 0CORDESnew since last plan; within last 5 yearsdeaths or injuries recorded
2021-07-24Flash Flood$0 property; $0 crops (2021 dollars)1, 0SMELTER CITYdeaths or injuries recorded
2017-07-19Flash Flood$7,000,000 property; $0 crops (2017 dollars)0, 0MAYER to CORDESB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2017-06-16Excessive Heat$0 property; $0 crops, reported for the zone (2017 dollars)0, 0NWS zone AZZ008 (YAVAPAI COUNTY MOUNTAINS), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2014-05-20Wildfire$7,000,000 property; $0 crops, reported for the zone (2014 dollars)0, 0NWS zone AZZ038 (OAK CREEK AND SYCAMORE CANYONS), zone-level: may include parts of neighboring countiesB1-c worst recorded: Wildfire
2013-06-28Wildfire$0 property; $0 crops, reported for the zone (2013 dollars)19, 0NWS zone AZZ008 (YAVAPAI COUNTY MOUNTAINS), zone-level: may include parts of neighboring countiesdeaths or injuries recorded
2011-07-11Debris Flow$10,000 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone AZZ037 (YAVAPAI COUNTY VALLEYS AND BASINS), zone-level: may include parts of neighboring countiesB1-c worst recorded: Debris Flow
2004-08-18Lightning$100,000 property; crops not reported (2004 dollars)0, 0MONTEZUMA CASTLEB1-c worst recorded: Lightning
2000-11-18High Wind77 kt (89 mph) measureddamage not reported0, 0NWS zone AZZ008 (YAVAPAI COUNTY MOUNTAINS), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
1996-07-04Thunderstorm Wind100 kt (115 mph), measurement type not recorded$500 property; $0 crops (1996 dollars)0, 0COTTONWOODB1-c worst recorded: Thunderstorm Wind
1995-09-28Hail4.5 indamage not recorded (pre-1996 record)0, 0MayerB1-c worst recorded: Hail
1972-08-10TornadoF3, 33 yd wide$30 property; crops not recorded (1972 dollars)0, 0location not recordedB1-c worst recorded: Tornado

The full list is in the XLSX file, sheet "B1-d Storm Events history" (908 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)

15 Fire Management declarations (1990-06-27 to 1996-06-24) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

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
Avalanche0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01994 to 2023 (30 years)see B1-f0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave0.00000352event-days per yearabout 0.00000352 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)0.00006682005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought67.7event-days per yearabout 67.7 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)2,9892000 to 2025 (25.25 years; D3 and D4 only)countywideNo recorded event-days, 1996 to 2025; descriptor not assigned
Earthquake0.00333annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.333%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.
Hail0.432events per yearabout 1 in 2 yearsLikelyFEMA annualized frequency (modeled)16.4 (modeled)1986 to 2023 (38 years)countywide
Heat Wave3.82event-days per yearabout 3.82 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)25.22005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 3.82 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 2 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.
Hurricane0events per yearnone modeledUnlikelyFEMA annualized frequency (modeled)01851 to 2024 (Atlantic); 1949 to 2024 (Pacific)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 Stormevent-days per year1946-12-31 to 2014-02-12 (67 years)countywideNot Applicable in NRI for this county; no descriptor.
Inland Flooding7.25event-days per yearabout 7.25 days per yearHighly likelyevent-days in 30 of 30 years, 1996 to 2025 (100%)2031996 to 2023 (28 years)see B1-f
Landslide4.41events per year (modeled)about 4.41 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning47.9days per year with a strikeabout 47.9 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.56events per yearabout 0.56 per yearLikelyFEMA annualized frequency (modeled)221986 to 2023 (38 years)countywide
Tornado0.507events per yearabout 0.51 per yearLikelyFEMA 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 Activity0.0002annual probabilityabout 1 in 5,000 yearsUnlikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Wildfire0.00544annual probability at a locationchance a given location in the county burns in a year: 0.544%LikelyStorm Events records in 13 of 30 years, 1996 to 2025 (43.3%)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 Weather4.46event-days per yearabout 4.46 days per yearHighly likelyevent-days in 28 of 30 years, 1996 to 2025 (93.3%)84.62005-11-12 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 202596303.2
Hail2.00 in+1996 to 20255300.167
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 2025115303.83
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20257300.233
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20259300.3
TornadoEF0-11996 to 202517300.567
TornadoEF2-31996 to 20250300
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
Avalanche23 of 7236.540.944.7Very Low 23, Not Applicable 49
Coastal Flooding0 of 72Not Applicable 72
Cold Wave4 of 7215.415.515.6Very Low 4, No Rating 68National 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.
Drought16 of 7267.077.688.7Relatively Low 7, Very Low 9, No Rating 56National 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.
Earthquake72 of 7216.848.475.0Relatively Low 48, Very Low 24
Hail72 of 7238.969.884.1Relatively Moderate 37, Relatively Low 35National 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 Wave72 of 723.623.383.4Relatively Moderate 15, Relatively Low 27, Very Low 30National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane0 of 72No Rating 72
Ice Storm0 of 72Not Applicable 72National 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 Flooding72 of 721.071.499.8Very High 9, Relatively High 22, Relatively Moderate 19, Relatively Low 12, Very Low 10
Landslide72 of 728.741.795.4Relatively Low 9, Very Low 63
Lightning72 of 7258.492.999.4Very High 22, Relatively High 31, Relatively Moderate 19National 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 Wind72 of 728.122.463.3Relatively Moderate 1, Relatively Low 39, Very Low 32National 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.
Tornado72 of 723.717.732.6Relatively Low 1, Very Low 71
Tsunami0 of 72Not Applicable 72
Volcanic Activity24 of 7240.559.977.2Very Low 24, No Rating 48
Wildfire72 of 7275.797.299.9Very High 7, Relatively High 33, Relatively Moderate 25, Relatively Low 7
Winter Weather72 of 7238.372.795.2Relatively High 22, Relatively Moderate 42, Relatively Low 8National 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
Yavapai CountyCountyApproved, expires 2029-01-02FMA RL 2, SRL 3; any 19$3,848,439.260; 0Includes $102,125.61 for declarations not counted as hazard incidents (DR-4524-AZ).
Camp Verde townTownApproved, expires 2029-01-02FMA RL 0, SRL 1; any 4$23,361.3137; 1Includes $6,163.29 for declarations not counted as hazard incidents (DR-4524-AZ).
Chino Valley townTownApproved, expires 2029-01-02FMA RL 0, SRL 0; any 0$39,546.352; 0Includes $26,437.85 for declarations not counted as hazard incidents (DR-4524-AZ).
Clarkdale townTownApproved, expires 2029-01-02FMA RL 0, SRL 0; any 0$11,204.328; 0Includes $3,181.90 for declarations not counted as hazard incidents (DR-4524-AZ).
Cottonwood cityCityPlan 108225 approved 2024-01-03, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$24,816.0917; no approved planIncludes $16,331.77 for declarations not counted as hazard incidents (DR-4524-AZ).
Dewey-Humboldt townTownApproved, expires 2029-01-02FMA RL 0, SRL 0; any 0$15,608.410; 0
Jerome townTownApproved, expires 2029-01-02FMA RL 0, SRL 0; any 0$83,337.511; 0Includes $13,362.06 for declarations not counted as hazard incidents (DR-4524-AZ).
Peoria cityCityApproved, expires 2027-05-10FMA RL 0, SRL 0; any 1none found0; 0Whole community, including the part in Maricopa County; none of its repeat-flood properties are in this county.
Prescott cityCityApproved, expires 2029-01-02FMA RL 1, SRL 1; any 3$590,557.0560; 0Includes $105,295.97 for declarations not counted as hazard incidents (DR-4524-AZ).
Prescott Valley townTownApproved, expires 2029-01-02FMA RL 0, SRL 0; any 0$57,952.959; 0Includes $16,804.04 for declarations not counted as hazard incidents (DR-4524-AZ).
Sedona cityCityApproved, expires 2029-01-02FMA RL 0, SRL 1; any 12none found3; 0Whole community, including the part in Coconino County; in-county portion (county table): FMA RL 0, FMA SRL 0, NFIP RL 1, NFIP SRL 0, any category 1.
Wickenburg townTownApproved, expires 2027-05-10FMA RL 0, SRL 0; any 4none found0; 0Whole community, including the part in Maricopa County; none of its repeat-flood properties are in this county.

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.

  • 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 2024-01-03county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$2,863,9911$2$558under 0.0001%
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$29,851,860$042$1$0$4under 0.0001%
Drought$13,152,740$17,3330.132% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$85,393,162,499236,209$1,846,556$337,5260.00216%
Hail$50,148,189,709$46,005,007235,830$862,650$5$415,0610.00172%$0
Heat Wave$50,148,189,709$46,005,007235,830$80$7,513$1,515,638under 0.0001%
Hurricane$50,148,189,709$46,005,007235,830$0$0$00%
Ice StormNot Applicable in NRI for this county
Inland Flooding$50,134,838,145$30,266,1209,691$61,359,714$204,447$8,108,886n/a (see note)$0NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. EAL as % of exposure: n/a.
Landslide$3,387,319,51912,201$499$4,024under 0.0001%
Lightning$50,148,189,709235,830$31,208$3,140,045under 0.0001%
Strong Wind$50,148,189,709$46,005,007235,830$143,602$170$179,6860.000286%$75,000$0
Tornado$50,148,189,709$46,005,007235,830$254,775$615$195,6970.000508%$0
TsunamiNot Applicable in NRI for this county
Volcanic Activity$50,148,189,709235,830under $1$16under 0.0001%
Wildfire$14,820,122,448$35,850,25188,990$27,409,250$332$1,297,8780.185%
Winter Weather$50,148,189,709$46,005,007235,830$4,938under $1$456,325under 0.0001%$0

Totals since 2024-01-03 (Storm Events through 2026-06-30): 57 county-coded records, 57 with a damage value recorded (including $0), $75,000; 9 zone-level records, 9 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance on counted declarations none found (0 declarations, 0 with PA).

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
Population235,830
Building value (total, not at risk)$50,148,189,709
Agriculture value (total, not at risk)$46,005,007
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$92,143,688
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)$15,651,344
Social vulnerability ratingRelatively 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)3Severe repetitive loss, FMA definition (44 CFR 77.2)5
Repetitive loss, NFIP insurance definition24Severe repetitive loss, NFIP insurance definition3

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 total3524327014
YAVAPAI COUNTY *231611909
PRESCOTT, CITY OF1131301
SEDONA, CITY OF0010101
CAMP VERDE, TOWN OF0141403
State level, not in this county: county not reported0100110

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Yavapai County040093231611909
Camp Verde town0401310141403
Chino Valley town0400940000000
Clarkdale town0400950000000
Cottonwood city0400960000000
Dewey-Humboldt town0400610000000
Jerome town0401380000000
Peoria city0400500010100Whole community, including the part in Maricopa County; none of its repeat-flood properties are in this county.
Prescott city0400981131301
Prescott Valley town0401210000000
Sedona city040130011211207Whole community, including the part in Coconino County; in-county portion (county table): FMA RL 0, FMA SRL 0, NFIP RL 1, NFIP SRL 0, any category 1.
Wickenburg town0400560040400Whole community, including the part in Maricopa County; none of its repeat-flood properties are in this county.

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 residential2324325014
2 to 4 unit residential0000000
other residential0000000
non-residential1200200
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 1 property is FMA repetitive loss but not NFIP repetitive loss, and 22 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

OpenFEMA disclaimer

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

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

Reuse, citation and corrections

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

Cite this: Hazard Plain (2026). Yavapai County, AZ: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 04025). 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_AZ_04025. Preview: automated baseline.