Hazard Plain Automated baseline

San Miguel County, NM

Risk-assessment baseline packet

County FIPS:
35047
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

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

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

Summary

Plan status as of 2026-09-30: Approved, expires 2026-10-18. Plan: San Miguel County (FEMA plan 105396), approved 2021-10-19.

Update: FEMA tracker shows a plan in progress.

Since the plan was approved on 2021-10-19: 4 new hazard declarations (2 incidents): FM-5431-NM (Hermit's Peak Fire), FM-5438-NM (Calf Canyon Fire), DR-4652-NM (Wildfires, Straight-Line Winds, Flooding, Mudflows, and Debris Flows), FM-5465-NM (Las Tusas Fire).

NOAA Storm Events records since that date: 305 records (data through 2026-06-30).

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($14,444,336 a year), Wildfire ($5,121,034) and Cold Wave ($317,468).

Repetitive-loss flood properties now: FMA RL 0, SRL 1 (44 CFR 77.2); any definition: 1.

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

Plan clock

Status:
Approved, expires 2026-10-18
Plan:
San Miguel County (FEMA plan 105396)
Approved:
2021-10-19
Days to expiry:
18
Update underway:
FEMA tracker shows a plan in progress

What changed since your last plan (approved 2021-10-19)

New federal declarations:
4 new hazard declarations (2 incidents): FM-5431-NM (Hermit's Peak Fire), FM-5438-NM (Calf Canyon Fire), DR-4652-NM (Wildfires, Straight-Line Winds, Flooding, Mudflows, and Debris Flows), FM-5465-NM (Las Tusas Fire)
Storm Events records since approval:
305 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 0, SRL 1 (44 CFR 77.2); any definition: 1
Repeat-flood change:
this release sets the baseline count.

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

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
San Miguel CountyCountyApproved, expires 2026-10-18San Miguel County (FEMA plan 105396)2021-10-192026-10-1818FEMA tracker shows a plan in progressthis jurisdiction approved 2021-10-12
Las Vegas cityCityApproved, expires 2026-10-18San Miguel County (FEMA plan 105396)2021-10-192026-10-1818FEMA tracker shows a plan in progressthis jurisdiction approved 2021-10-13
Pecos villageVillageApproved, expires 2026-10-18San Miguel County (FEMA plan 105396)2021-10-192026-10-1818FEMA tracker shows a plan in progressthis jurisdiction approved 2021-10-13

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 Low$12,398,191$104,680$1,941,464$14,444,33670
2WildfireRelatively ModerateRelatively Moderate$4,936,787$668$183,579$5,121,03417
3Cold WaveRelatively LowRelatively Low$1,138$3,152$313,178$317,4686
4LightningRelatively ModerateRelatively Low$2,788n/a$297,033$299,8210No recorded events in Storm Events since 1996 (data through 2026-06-30).
5EarthquakeVery LowVery Low$138,300n/a$20,734$159,034Storm Events does not record earthquakes.
6Winter WeatherRelatively ModerateRelatively Moderate$50,945$2,256$85,088$138,289159
7Strong WindRelatively LowRelatively Low$38,383$1,152$87,140$126,676260Includes 234 High Wind and 1 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
8HailRelatively LowVery Low$28,448$1,355$89,593$119,396239
9DroughtRelatively LowRelatively Lown/a$88,685n/a$88,685129
10TornadoVery LowVery Low$79,424$84$7,940$87,4488
11Heat WaveVery LowVery Low$3$38$9,000$9,0411
12LandslideRelatively LowVery Low$4,859n/a$862$5,7202
13Ice StormVery LowVery Low$423n/a$903$1,3260No recorded events in Storm Events since 1996 (data through 2026-06-30).
14AvalancheVery LowVery Low$1n/a$44$450No recorded events in Storm Events since 1996 (data through 2026-06-30).
15Volcanic ActivityNo RatingNo Expected Annual Losses$0n/a$0$00No 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 lightning and volcanic activity records (Storm Events records these hazards only in part).

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

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

Supports FEMA checklist item B1-b: hazard location

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

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

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

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Avalanchetract 9575.01 (Very Low, 12.7); tract 9576.01 (Very Low, 11.7); tract 9577 (Very Low, 10.8)
Earthquaketract 9574 (Relatively Low, 60.0); tract 9573 (Relatively Low, 56.8); tract 9572 (Relatively Low, 52.7)
Hurricaneno tract has a National Risk Index rating for this hazard
Landslidetract 9575.01 (Relatively Moderate, 96.7); tract 9576.02 (Relatively Low, 93.1); tract 9575.02 (Relatively Low, 92.6)
Tornadotract 9574 (Relatively Low, 33.2); tract 9575.01 (Relatively Low, 31.4); tract 9573 (Relatively Low, 31.4)
Volcanic Activityno tract has a National Risk Index rating for this hazard
Wildfiretract 9575.02 (Very High, 99.6); tract 9576.02 (Relatively High, 98.8); tract 9578 (Relatively High, 98.6)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 9575.01 is Census Tract 9575.01). 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 chill6 records, 1996 to 2025 (6 zone-level)1 day to 3 days (median 2 days); 6 with a recorded value3 consecutive days, 1996-12-16 to 1996-12-18, zone-levelCountywide (zone-level records).Wind 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)129 records, 1996 to 2026 (129 zone-level)29 days to 1,494 days (median 122 days); 11 with a recorded value1494 days (about 49.1 months), 2011-03-29 to 2015-04-30, a run of 50 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)282 records, 1958 to 20260.75 in to 4.5 in (median 1 in); 282 with a recorded value4.5 in hail, 1982-06-26Hail, 2017-08-09, $250,000 property; $0 crops (2017 dollars)Event records naming jurisdictions in the plan: Las Vegas city (45 records), Pecos village (10 records).
Excessive Heat, Heatheat index (in event narratives)1 record, 2017 (1 zone-level)5 days; 1 with a recorded value5 consecutive days, 2017-06-20 to 2017-06-24, zone-levelCountywide (zone-level records).Heat index: in event narratives only (local data needed).
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)70 records, 1997 to 2025Flash Flood, 2022-07-21, $2,000,000 property; $0 crops (2022 dollars), 3 direct deathsEvent records naming jurisdictions in the plan: Las Vegas city (6 records), Pecos village (3 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)2 records, 2024No damage reported in 2 records.No event record names a jurisdiction in the plan.Physical measure: in event narratives only (local data needed).
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)0Storm 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)235 records, 1996 to 2026 (235 zone-level)35 kt (40 mph) to 78 kt (90 mph) (median 54 kt (62 mph)); 235 with a recorded value78 kt (90 mph) measured gust, High Wind, 2021-12-15; NWS zone NMZ229Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)40 records, 1966 to 202650 kt (58 mph) to 70 kt (81 mph) (median 52 kt (60 mph)); 36 with a recorded value70 kt (81 mph) measured gust, Thunderstorm Wind, 2025-09-16Thunderstorm Wind, 2007-09-10, $4,000 property; $0 crops (2007 dollars)Event records naming jurisdictions in the plan: Las Vegas city (1 record), Pecos village (1 record).
TornadoEnhanced Fujita (Fujita before Feb 2007)18 records, 1957 to 2025F/EF0 to F/EF2 (median F/EF0); 13 with a recorded valueF2 tornado, 1992-06-27, 0.8 mi path length (whole path, pre-1996), 73 yd wide, $25,000 property; crops not recorded (1992 dollars)Tornado, 2023-10-01, $100,000 property; crops not reported (2023 dollars)Event records naming jurisdictions in the plan: Las Vegas city (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only (local data needed).
Wildfireacres burned (local data)17 records, 2000 to 2026 (16 zone-level)Wildfire, 2022-05-01, $100,000,000 property; crops not reported (2022 dollars), 3 direct injuries (reported for the zone); NWS zone NMZ215Event records naming jurisdictions in the plan: Pecos village (1 record). Zone-level records (16) apply countywide.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)159 records, 1996 to 2026 (159 zone-level)Heavy Snow, 2025-04-19, $1,500,000 property; crops not reported (2025 dollars); NWS zone NMZ223Countywide (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: 21 declarations covering 14 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2023-05-102023-05-10FM-5465-NMFire managementLas Tusas FireWildfireno Public Assistance recordednew since last plan; within last 5 years
2022-05-042022-04-05DR-4652-NMMajor disasterWildfires, Straight-Line Winds, Flooding, Mudflows, and Debris FlowsWildfire (primary); also designated: Inland Flooding, Landslide$85,338,848.15new since last plan; within last 5 years
2022-04-302022-04-20FM-5438-NMFire managementCalf Canyon FireWildfireno Public Assistance recordednew since last plan; within last 5 yearssame incident as DR-4652
2022-04-122022-04-12FM-5431-NMFire managementHermit's Peak FireWildfireno Public Assistance recordednew since last plan; within last 5 yearssame incident as DR-4652
2020-04-052020-01-20DR-4529-NMMajor disasterCOVID-19 PandemicNon-natural, not counted$44,011.62
2020-03-132020-01-20EM-3460-NMEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4529
2014-10-292014-09-15DR-4199-NMMajor disasterSevere Storms and FloodingInland Floodingno Public Assistance recorded
2014-10-062014-07-27DR-4197-NMMajor disasterSevere Storms and FloodingInland Flooding$775,155.19
2013-10-292013-09-09DR-4152-NMMajor disasterSevere Storms, Flooding, and MudslidesInland Flooding (primary); also designated: Landslide$1,058,610.61
2013-06-052013-05-30FM-5026-NMFire managementTres Lagunas FireWildfireno Public Assistance recorded
2006-08-302006-07-26DR-1659-NMMajor disasterSevere Storms and FloodingInland Flooding$124,002.86
2005-09-072005-08-29EM-3229-NMEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2004-04-292004-04-02DR-1514-NMMajor disasterSevere Storms and FloodingInland Flooding$235,372.07
2002-06-132002-06-13FM-2424-NMFire managementNm - Roybal Fire - 06/13/02Wildfireno Public Assistance recorded
2002-05-072002-05-06FM-2404-NMFire managementNm - Dalton Fire - 05/06/02Wildfireno Public Assistance recorded
2000-05-302000-05-29FM-2304-NMFire managementViveach FireWildfireno Public Assistance recordedsame incident as DR-1329
2000-05-132000-05-05DR-1329-NMMajor disasterSevere Forest FireWildfirePA not declared for this county
2000-05-102000-05-05EM-3154-NMEmergencySevere Fire ThreatsWildfire$5,796.75same incident as DR-1329
1979-06-231979-06-23DR-589-NMMajor disasterSevere Storms, Snowmelt & FloodingInland Floodingno Public Assistance recorded
1973-05-111973-05-11DR-380-NMMajor disasterSevere Storms, Snow Melt & FloodingInland Floodingno Public Assistance recorded
1965-07-011965-07-01DR-202-NMMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded

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

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
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
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave6111001996 to 2026-06-30
Drought129401241001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail28237737001955 to 2026-06-30
Heat Wave1000001996 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 Flooding7042142911996 to 2026-06-30
Landslide2202211996 to 2026-06-30
Lightning0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Strong Wind27511715118001955 to 2026-06-30Includes 234 High Wind and 1 Strong Wind records.
Tornado18414001950 to 2026-06-30
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire1715015621996 to 2026-06-30
Winter Weather159471147001996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-09-16Thunderstorm Wind70 kt (81 mph) measured gustdamage not reported0, 0(LVS)LAS VEGAS AIRPORTnew since last plan; within last 5 yearsB1-c worst recorded: Thunderstorm Wind
2025-04-19Heavy Snow$1,500,000 property; crops not reported, reported for the zone (2025 dollars)0, 0NWS zone NMZ223 (CENTRAL HIGHLANDS), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2022-07-21Flash Flood$2,000,000 property; $0 crops (2022 dollars)3, 0PENDARIES to MINERAL HILLnew since last plan; within last 5 yearsdeaths or injuries recorded
2022-05-01Wildfire$100,000,000 property; crops not reported, reported for the zone (2022 dollars)0, 3NWS zone NMZ215 (EAST SLOPES SANGRE DE CRISTO MOUNTAINS), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Wildfire
2022-05-01Wildfire$11,000,000 property; crops not reported, reported for the zone (2022 dollars)0, 10NWS zone NMZ215 (EAST SLOPES SANGRE DE CRISTO MOUNTAINS), zone-levelnew since last plan; within last 5 yearsdeaths or injuries recorded
2021-12-15High Wind78 kt (90 mph) measured gust$500,000 property; $0 crops, reported for the zone (2021 dollars)0, 0NWS zone NMZ229 (NORTHEAST HIGHLANDS), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2018-01-15Winter Weather$1,000,000 property; $0 crops, reported for the zone (2018 dollars)0, 20Storm Events area NORTHEAST HIGHLANDS (legacy zone code NMZ529), zone-leveldeaths or injuries recorded
2017-06-20Heat$0 property; $0 crops, reported for the zone (2017 dollars)0, 0Storm Events area NORTHEAST HIGHLANDS (legacy zone code NMZ529), zone-levelB1-c worst recorded: Excessive Heat, Heat
2011-03-29Drought$0 property; $0 crops, reported for the zone (2011 dollars)0, 0Storm Events area NORTHEAST HIGHLANDS (legacy zone code NMZ529), zone-levelB1-c worst recorded: Drought
1996-12-16Cold/Wind Chilldamage not reported0, 0Storm Events area NORTHEAST HIGHLANDS (legacy zone code NMZ005), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1992-06-27TornadoF2, 0.8 mi path length (whole path, pre-1996), 73 yd wide$25,000 property; crops not recorded (1992 dollars)0, 0location not recordedB1-c worst recorded: Tornado
1982-06-26Hail4.5 indamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Hail

The full list is in the Excel file, sheet "B1-d Storm Events history" (959 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 Wave0.367event-days per yearabout 0.367 days per yearLikely (from Storm Events: 5 of 30 years)event-days in 5 of 30 years, 1996 to 2025 (16.7%)6.972005-11-12 to 2024-11-12 (19 years)countywide
Drought115event-days per yearabout 115 days per yearLikely (from Storm Events: 16 of 30 years)event-days in 16 of 30 years, 1996 to 2025 (53.3%)4,1792000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00115annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.115%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.29events per yearabout 1.29 per yearHighly likelyFEMA annualized frequency (modeled)48.9 (modeled)1986 to 2023 (38 years)countywide
Heat Wave0.374event-days per yearabout 0.374 days per yearPossible (from Storm Events: 1 of 30 years)event-days in 1 of 30 years, 1996 to 2025 (3.33%)7.112005-11-12 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 Storm0.111event-days per yearabout 0.111 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)71946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding1.64event-days per yearabout 1.64 days per yearLikely (from Storm Events: 17 of 30 years)event-days in 17 of 30 years, 1996 to 2025 (56.7%)461996 to 2023 (28 years)see B1-f
Landslide1.84events per year (modeled)about 1.84 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning62.4days per year with a strikeabout 62.4 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.294events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)121986 to 2023 (38 years)countywide
Tornado0.443events per yearabout 1 in 2 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Volcanic Activity0annual probabilitynone modeledUnlikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Wildfire0.0059annual probability at a locationchance a given location in the county burns in a year: 0.59%Likely (from Storm Events: 5 of 30 years)Storm Events records in 5 of 30 years, 1996 to 2025 (16.7%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI.
Winter Weather15.2event-days per yearabout 15.2 days per yearHighly likely (from Storm Events: 28 of 30 years)event-days in 28 of 30 years, 1996 to 2025 (93.3%)2892005-11-12 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.

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 2025137304.57
Hail2.00 in+1996 to 202518300.6
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202519300.633
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20251300.0333
TornadoEF0-11996 to 20255300.167
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20253300.1

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
Avalanche6 of 1010.010.712.7Very Low 6, Not Applicable 4
Cold Wave10 of 1025.040.562.9Relatively Moderate 4, Relatively Low 6
Drought5 of 1080.382.595.5Relatively Moderate 2, Relatively Low 3, No Rating 5
Earthquake10 of 1024.240.460.0Relatively Low 5, Very Low 5
Hail10 of 1047.762.774.4Relatively Moderate 4, Relatively Low 6
Heat Wave10 of 101.92.53.6Very Low 10
Hurricane0 of 10Not Applicable 10
Ice Storm10 of 101.11.912.7Very Low 10
Inland Flooding10 of 1080.191.399.2Very High 4, Relatively High 6
Landslide10 of 1018.378.896.7Relatively Moderate 1, Relatively Low 4, Very Low 5
Lightning10 of 1061.385.195.5Relatively High 9, Relatively Moderate 1
Strong Wind10 of 1028.251.762.8Relatively Moderate 5, Relatively Low 5
Tornado10 of 1010.324.433.2Relatively Low 4, Very Low 6
Volcanic Activity0 of 10No Rating 10
Wildfire10 of 1086.398.199.6Very High 1, Relatively High 8, Relatively Low 1
Winter Weather10 of 1080.491.895.9Very High 1, Relatively High 9

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 plan
San Miguel CountyCountyApproved, expires 2026-10-18FMA RL 0, SRL 1; any 1$56,794,752.350 total; 0 since its plan
Las Vegas cityCityApproved, expires 2026-10-18FMA RL 0, SRL 0; any 0$27,572,994.3253 total; 9 since its plan
Pecos villageVillageApproved, expires 2026-10-18FMA RL 0, SRL 0; any 0$015 total; 0 since its plan

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

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

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

Local data needed

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

  • 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 2021-10-19county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$2,612,417n/aunder 1$1n/a$44under 0.0001%
Cold Wave$7,302,776,937$24,589,09427,087$1,138$3,152$313,178under 0.0001%
Droughtn/a$456,834n/an/a$88,685n/a19.4% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$12,277,495,647n/a27,201$138,300n/a$20,7340.00113%
Hail$7,302,776,937$24,589,09427,087$28,448$1,355$89,5930.00039%$63,500
Heat Wave$6,744,121,328$8,189,40625,557$3$38$9,000under 0.0001%
HurricaneNot Applicable in NRI for this county
Ice Storm$7,302,776,937n/a27,087$423n/a$903under 0.0001%
Inland Flooding$7,298,777,594$5,822,2412,130$12,398,191$104,680$1,941,464n/a (see note)$3,825,000$85,338,848.15NRI 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$278,885,416n/a763$4,859n/a$8620.00174%$0$85,338,848.15
Lightning$7,302,776,937n/a27,087$2,788n/a$297,033under 0.0001%
Strong Wind$7,302,776,937$24,589,09427,087$38,383$1,152$87,1400.000526%$0$560,000Storm Events damage since the plan includes 5 zone-level High Wind records ($540,000) and 1 zone-level Strong Wind record ($20,000): NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition.
Tornado$7,302,776,937$24,589,09427,087$79,424$84$7,9400.00109%$100,000
Volcanic Activity$7,302,776,937n/a27,087$0n/a$00%
Wildfire$3,357,640,655$23,329,29915,481$4,936,787$668$183,5790.147%$146,250,000$85,338,848.15
Winter Weather$7,302,776,937$24,589,09427,087$50,945$2,256$85,0880.000698%$1,777,000

Totals since 2021-10-19 (Storm Events through 2026-06-30): 93 county-coded records, 69 with a damage value recorded (including $0), $3,988,500; 212 zone-level records, 114 with a damage value recorded (including $0), $148,587,000 reported for the zone; Public Assistance: $85,338,848.15 on 4 counted declarations, 1 of them with Public Assistance.

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
Population27,087
Building value (total, not at risk)$7,302,776,937
Agriculture value (total, not at risk)$24,589,094
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$17,881,759
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)$3,036,559
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)1
Repetitive loss, NFIP insurance definition1Severe repetitive loss, NFIP insurance definition1

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 total0111101
of which: San Miguel County (unincorporated area)0111101

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
San Miguel County3501320111101
Las Vegas city3500680000000
Pecos village3500970000000

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 residential0111101
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 1 property is NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment, 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 Miguel County, NM: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 35047). Automated baseline. https://hazardplain.org/nm/35047/ 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.