Hazard Plain Automated baseline

San Juan County, NM

Risk-assessment baseline packet

County FIPS:
35045
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

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

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

Summary

Plan status as of 2026-09-30: No approved plan on record.

Update: FEMA tracker shows a plan in review.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($31,069,712 a year), Drought ($4,759,000) and Cold Wave ($3,499,050).

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

Plan clock

Status:
No approved plan on record
Plan:
none
Approved:
none
Expires:
none
Update underway:
FEMA tracker shows a plan in review

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

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underway
San Juan CountyCountyNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review
Aztec cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review
Bloomfield cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review
Farmington cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review
Kirtland townTownNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review

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

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

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

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

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countWhy this hazard can be left outNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$30,544,030$1,276$524,407$31,069,71254
2DroughtRelatively HighRelatively Highn/a$4,759,000n/a$4,759,00072
3Cold WaveRelatively ModerateRelatively Moderate$234$5,150$3,493,666$3,499,0500No recorded events in Storm Events since 1996 (data through 2026-06-30).
4EarthquakeRelatively LowRelatively Low$1,240,599n/a$261,749$1,502,349Storm Events does not record earthquakes.
5LightningRelatively HighRelatively High$13,527n/a$1,374,873$1,388,4005
6Heat WaveRelatively ModerateRelatively Low$215$6,463$902,942$909,6202
7WildfireRelatively LowRelatively Low$263,536$8$21,460$285,0035
8Winter WeatherRelatively HighRelatively Moderate$14,662$2,272$216,129$233,06328
9TornadoVery LowVery Low$71,314$53$108,049$179,4167
10Strong WindRelatively LowRelatively Low$27,956$56$104,755$132,76753Includes 15 High Wind records (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
11LandslideRelatively ModerateRelatively Low$31,059n/a$20,117$51,1770Declared 1 time; no Storm Events record of this type.
12HailVery LowVery Low$16,413$2,178$14,041$32,63225
13Ice StormRelatively LowRelatively Low$21,922n/a$8,284$30,2060Declared 1 time; no Storm Events record of this type.
14AvalancheVery LowVery Lowunder $1n/a$47$470No recorded events in Storm Events since 1996 (data through 2026-06-30).
HurricaneNot ApplicableNot Applicable0NRI rates hurricane Not Applicable for this county, and no counted federal declaration for this county names it (EM-3229-NM names it but is not counted as a local occurrence; see B1-d).No recorded events in Storm Events since 1996 (data through 2026-06-30).

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

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

Local data needed: state and local landslide records (Storm Events records this hazard only in part).

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

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

Supports FEMA checklist item B1-b: hazard location

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

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

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

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Avalanchetract 9432.01 (Very Low, 14.2); tract 9429 (Very Low, 14.1); tract 9431 (Very Low, 14.1)
Earthquaketract 4.02 (Relatively Moderate, 78.0); tract 9432.01 (Relatively Low, 76.8); tract 2.07 (Relatively Low, 75.2)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 9429 (Relatively Moderate, 98.9); tract 9433 (Relatively Moderate, 98.3); tract 9432.01 (Relatively Moderate, 98.3)
Tornadotract 9428.02 (Very Low, 26.2); tract 9432.01 (Very Low, 24.7); tract 7.07 (Very Low, 23.0)
Wildfiretract 6.11 (Relatively Moderate, 93.2); tract 7.06 (Relatively Moderate, 92.7); tract 9429 (Relatively Moderate, 92.4)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 9432.01 is Census Tract 9432.01). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

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

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Avalanchenone (count and damage only)0Physical measure: in event narratives only (local data needed).
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill0Wind chill: in event narratives only (local data needed).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0Temperature: in event narratives only (local data needed).
DroughtU.S. Drought Monitor scale (D0 to D4)72 records, 2019 to 2026 (72 zone-level)59 days to 1,263 days (median 426.5 days); 4 with a recorded value1263 days (about 41.5 months), 2019-10-16 to 2023-03-31, a run of 42 consecutive Storm Events drought records, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)28 records, 1965 to 20260.75 in to 1.75 in (median 1 in); 28 with a recorded value1.75 in hail, 2024-06-21; same size also recorded on 1965-08-02, 2010-10-06, 2012-10-12, 2014-09-29, 2015-06-11Hail, 2013-09-18, $1,000 property; $0 crops (2013 dollars)Event records naming jurisdictions in the plan: Farmington city (8 records), Bloomfield city (5 records), Aztec city (1 record), Kirtland town (1 record).
Excessive Heat, Heatheat index (in event narratives)2 records, 1998 to 2021 (1 zone-level)1 day; 1 with a recorded value1 consecutive day, 2021-07-10Event records naming jurisdictions in the plan: Farmington city (1 record). Zone-level records (1) apply countywide.Heat index: in event narratives only (local data needed). Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)0Ice thickness: in event narratives only (local data needed).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)54 records, 1996 to 2025Flash Flood, 2010-08-01, $2,000,000 property; $0 crops (2010 dollars)Event records naming jurisdictions in the plan: Bloomfield city (8 records), Farmington city (5 records), Aztec city (3 records), Kirtland town (2 records).Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0Physical measure: in event narratives only (local data needed).
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)5 records, 2000 to 2009Lightning, 2003-08-02, damage not reported, 1 direct death, 1 direct injuryLightning, 2003-08-13, $30,000 property; crops not reported (2003 dollars)Event records naming jurisdictions in the plan: Farmington city (2 records).Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed).
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)15 records, 2020 to 2026 (15 zone-level)50 kt (58 mph) to 62 kt (71 mph) (median 52 kt (60 mph)); 15 with a recorded value62 kt (71 mph) measured gust, High Wind, 2022-04-22; same speed and measurement basis also recorded on 2020-10-25; NWS zone NMZ201High Wind, 2023-04-19, $10,000 property; crops not reported, reported for the zone (2023 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)54 records, 1964 to 202648 kt (55 mph) to 90 kt (104 mph) (median 53 kt (61 mph)); 47 with a recorded value90 kt (104 mph) estimated gust, Thunderstorm Wind, 2015-08-26Thunderstorm Wind, 2024-08-21, $3,000,000 property; crops not reported (2024 dollars)Event records naming jurisdictions in the plan: Farmington city (6 records), Bloomfield city (4 records), Aztec city (3 records), Kirtland town (1 record).
TornadoEnhanced Fujita (Fujita before Feb 2007)11 records, 1957 to 2022F/EF0 to F/EF2 (median F/EF0); 10 with a recorded valueF2 tornado, 1968-06-18, 0.5 mi path length (whole path, pre-1996), 500 yd wide, $250,000 property; crops not recorded (1968 dollars), 3 direct injuriesEvent records naming jurisdictions in the plan: Bloomfield city (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Wildfireacres burned (local data)5 records, 2021 to 2025 (5 zone-level)Wildfire, 2021-05-16, $300,000 property; $0 crops (2021 dollars); NWS zone NMZ201Countywide (zone-level records).Acres burned: in event narratives only (local data needed).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)28 records, 2020 to 2026 (28 zone-level)No damage reported in 28 records.Countywide (zone-level records).Snow depth: in event narratives only (local data needed).

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

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

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 11 declarations covering 7 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

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

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-06-202024-06-17DR-4795-NMMajor disasterSouth Fork Fire, Salt Fire, and FloodingWildfire$3,062,275.96within last 5 years
2020-04-052020-01-20DR-4529-NMMajor disasterCOVID-19 PandemicNon-natural, not counted$212,197.85
2020-03-132020-01-20EM-3460-NMEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4529
2013-10-292013-09-09DR-4152-NMMajor disasterSevere Storms, Flooding, and MudslidesInland Flooding (primary); also designated: Landslide$2,424,701.68
2012-06-182012-06-18FM-2981-NMFire managementBlanco (Cr 4901) FireWildfireno Public Assistance recorded
2010-09-132010-07-25DR-1936-NMMajor disasterSevere Storms and FloodingInland Flooding$1,950,464.87
2005-09-072005-08-29EM-3229-NMEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not counted$5,036.13
2000-05-132000-05-05DR-1329-NMMajor disasterSevere Forest FireWildfirePA not declared for this county
2000-05-102000-05-05EM-3154-NMEmergencySevere Fire ThreatsWildfireno Public Assistance recordedsame incident as DR-1329
1999-09-221999-07-16DR-1301-NMMajor disasterSevere Ice Storms, Flooding and Heavy RainsIce Storm; Inland Flooding$163,686.19
1977-03-021977-03-02EM-3034-NMEmergencyDroughtDroughtno Public Assistance recorded

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

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1998-07-021998-06-29EM-3128-NMEmergencyExtreme Fire HazardsWildfire
1955-08-151955-08-15DR-38-NMMajor disasterFloodInland Flooding
1954-10-131954-10-13DR-27-NMMajor disasterFloodInland Flooding

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

5 Fire Management declarations (1974-05-21 to 2003-05-10) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance not placed in any New Mexico county: 1 row, $6,157.13; listed on the New Mexico state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Drought724811996 to 2026-06-30
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail28301955 to 2026-06-30
Heat Wave2001996 to 2026-06-30
Hurricane0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm0011996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Inland Flooding541331996 to 2026-06-30
Landslide0011996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Lightning5001996 to 2026-06-30
Strong Wind693401955 to 2026-06-30Includes 15 High Wind records.
Tornado11101950 to 2026-06-30
Wildfire5331996 to 2026-06-30
Winter Weather282301996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2024-06-21Hail1.75 in$0 property; $0 crops (2024 dollars)0, 0BLOOMFIELDwithin last 5 yearsB1-c worst recorded: Hail
2022-04-22High Wind62 kt (71 mph) measured gust$0 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone NMZ201 (NORTHWEST PLATEAU), zone-levelwithin last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2021-07-10Excessive Heat$0 property; $0 crops, reported for the zone (2021 dollars)0, 0NWS zone NMZ201 (NORTHWEST PLATEAU), zone-levelB1-c worst recorded: Excessive Heat, Heat
2021-05-16Wildfire$300,000 property; $0 crops, reported for the zone (2021 dollars)0, 0NWS zone NMZ201 (NORTHWEST PLATEAU), zone-levelB1-c worst recorded: Wildfire
2019-10-16Droughtdamage not reported0, 0NWS zone NMZ201 (NORTHWEST PLATEAU), zone-levelB1-c worst recorded: Drought
2016-08-05Flash Flood$50,000 property; $0 crops (2016 dollars)1, 0TURLEYdeaths or injuries recorded
2015-08-26Thunderstorm Wind90 kt (104 mph) estimated gust$350,000 property; $0 crops (2015 dollars)0, 0FLORA VISTAB1-c worst recorded: Thunderstorm Wind
2010-08-01Flash Flood$2,000,000 property; $0 crops (2010 dollars)0, 0FARMINGTONB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2003-08-13Lightning$30,000 property; crops not reported (2003 dollars)0, 0FARMINGTONB1-c most damaging: Lightning
2003-08-02Lightningdamage not reported1, 1SHEEP SPGSdeaths or injuries recorded
1998-11-11Heatdamage not reported1, 0FARMINGTONdeaths or injuries recorded
1968-06-18TornadoF2, 0.5 mi path length (whole path, pre-1996), 500 yd wide$250,000 property; crops not recorded (1968 dollars)0, 3location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (274 rows).

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

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

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

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

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalanche0.01events 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.
Cold Wave0.0526event-days per yearabout 0.0526 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)12005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events cold wave record, 1996 to 2025.
Drought108event-days per yearabout 108 days per yearLikely (from Storm Events: 7 of 30 years)event-days in 7 of 30 years, 1996 to 2025 (23.3%)3,6962000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00156annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.156%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail0.0812events per yearabout 1 in 12 yearsPossibleFEMA annualized frequency (modeled)3.1 (modeled)1986 to 2023 (38 years)countywide
Heat Wave1.82event-days per yearabout 1.82 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)332005-11-12 to 2024-11-12 (19 years)countywide
Hurricaneevents per year1851 to 2024 (Atlantic)see B1-fNot Applicable in NRI for this county; no descriptor.
Ice Storm0.0149event-days per yearabout 0.0149 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)01946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding1.36event-days per yearabout 1.36 days per yearLikely (from Storm Events: 19 of 30 years)event-days in 19 of 30 years, 1996 to 2025 (63.3%)381996 to 2023 (28 years)see B1-f
Landslide1.65events per year (modeled)about 1.65 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning50.2days per year with a strikeabout 50.2 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.0597events per yearabout 1 in 17 yearsPossibleFEMA annualized frequency (modeled)31986 to 2023 (38 years)countywide
Tornado0.139events per yearabout 1 in 7 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000446annual probability at a locationchance a given location in the county burns in a year: 0.0446%Likely (from Storm Events: 3 of 30 years)Storm Events records in 3 of 30 years, 1996 to 2025 (10%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI.
Winter Weather12.4event-days per yearabout 12.4 days per yearLikely (from Storm Events: 6 of 30 years)event-days in 6 of 30 years, 1996 to 2025 (20%)2352005-11-12 to 2024-11-12 (19 years)countywide

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

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

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

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

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202513300.433
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202526300.867
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20255300.167
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20253300.1
TornadoEF0-11996 to 20256300.2
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20251300.0333

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

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

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

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

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Avalanche8 of 3610.313.414.2Very Low 8, Not Applicable 28
Cold Wave36 of 3637.072.189.1Relatively High 8, Relatively Moderate 27, Relatively Low 1
Drought15 of 3672.183.699.9Very High 2, Relatively Low 11, Very Low 2, No Rating 21
Earthquake36 of 3635.960.678.0Relatively Moderate 1, Relatively Low 32, Very Low 3
Hail36 of 365.722.839.2Relatively Low 1, Very Low 35
Heat Wave36 of 367.944.072.0Relatively Moderate 6, Relatively Low 29, Very Low 1
Hurricane0 of 36Not Applicable 36
Ice Storm36 of 363.813.233.1Very Low 36
Inland Flooding36 of 3629.373.197.2Very High 2, Relatively High 13, Relatively Moderate 16, Relatively Low 5
Landslide36 of 3632.881.698.9Relatively Moderate 5, Relatively Low 14, Very Low 17
Lightning36 of 3652.091.098.5Very High 6, Relatively High 26, Relatively Moderate 4
Strong Wind36 of 3611.021.935.5Relatively Low 25, Very Low 11
Tornado36 of 364.515.726.2Very Low 36
Wildfire35 of 3634.277.693.2Relatively Moderate 5, Relatively Low 24, Very Low 6, No Rating 1
Winter Weather36 of 3645.877.893.9Relatively High 16, Relatively Moderate 19, Relatively Low 1

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

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

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

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

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
San Juan CountyCountyNo approved plan on recordFMA RL 0, SRL 0; any 1$2,102,686.440 total; no approved planIncludes $5,036.13 for declarations not counted as hazard incidents (EM-3229-NM).
Aztec cityCityNo approved plan on recordFMA RL 0, SRL 0; any 3$210,747.087 total; no approved plan
Bloomfield cityCityNo approved plan on recordFMA RL 0, SRL 0; any 0$25,394.4618 total; no approved plan
Farmington cityCityNo approved plan on recordFMA RL 0, SRL 0; any 0$5,268,451.9822 total; no approved planIncludes $150,927.20 for declarations not counted as hazard incidents (DR-4529-NM).
Kirtland townTownNo approved plan on recordno Public Assistance recorded4 total; no approved planNo NFIP community ID on this jurisdiction's plan row.

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

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

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

Local data needed

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

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

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

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

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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$135,227n/aunder 1under $1n/a$47under 0.0001%
Cold Wave$24,323,945,370$95,415,513121,421$234$5,150$3,493,666under 0.0001%
Droughtn/a$57,996,480n/an/a$4,759,000n/a8.21% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$42,347,744,597n/a121,661$1,240,599n/a$261,7490.00293%
Hail$24,323,950,193$95,415,513121,421$16,413$2,178$14,041under 0.0001%
Heat Wave$24,323,945,370$95,415,513121,421$215$6,463$902,942under 0.0001%
HurricaneNot Applicable in NRI for this county
Ice Storm$24,323,950,193n/a121,421$21,922n/a$8,284under 0.0001%
Inland Flooding$24,304,183,655$1,391,3083,283$30,544,030$1,276$524,407n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$494,758,357n/a2,087$31,059n/a$20,1170.00628%
Lightning$24,323,950,193n/a121,421$13,527n/a$1,374,873under 0.0001%
Strong Wind$24,323,950,193$95,415,513121,421$27,956$56$104,7550.000115%
Tornado$24,323,950,193$95,415,513121,421$71,314$53$108,0490.000293%
Wildfire$2,183,937,129$10,749,53418,900$263,536$8$21,4600.0121%
Winter Weather$24,323,945,370$95,415,513121,421$14,662$2,272$216,129under 0.0001%

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

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

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

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

County context

Source: 5

MeasureValue
Population121,421
Building value (total, not at risk)$24,323,950,193
Agriculture value (total, not at risk)$95,415,513
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$37,021,924
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)$7,050,517
Social vulnerability ratingVery High
Community resilience ratingVery Low
NRI versionDecember 2025

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

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

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition4Severe repetitive loss, NFIP insurance definition0

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

Repeat-flood properties: county total and NFIP communities

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0040401
of which: San Juan County (unincorporated area)0010100
of which: Aztec city0030301

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
San Juan County3500640010100
Aztec city3500650030301
Bloomfield city3500660000000
Farmington city3500670000000

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

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

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0040401
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
not reported0000000

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

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

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

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 4 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment, organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B. Each section heading names the item its tables support; the plan and FEMA's review decide whether the item is met.

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

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

OpenFEMA disclaimer

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

Reuse, citation and corrections

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

Cite this: Hazard Plain (2026). San Juan County, NM: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 35045). Automated baseline. https://hazardplain.org/nm/35045/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

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

Hazard Plain release 2026-10. As of 2026-09-30; Storm Events data through 2026-06-30. Automated baseline.