Hazard Plain Automated baseline

Crosby County, TX

Risk-assessment baseline packet

County FIPS:
48107
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 county-level plan row in FEMA data.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Drought ($1,765,668 a year), Hail ($913,997) and Tornado ($620,390).

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

No county-level plan row in FEMA data

What changed since your last plan

Not available. No county-level plan row in FEMA data, 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 underwayNotes
No rows for this unit.

No jurisdictions listed in FEMA plan data for this unit.

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 2026-06-30countStorm Events coverage note
1DroughtRelatively HighRelatively Highn/a$1,765,668n/a$1,765,66891
2HailRelatively ModerateRelatively Moderate$361,642$542,618$9,737$913,997131
3TornadoRelatively LowRelatively Low$232,012$15,244$373,134$620,39022
4Strong WindRelatively ModerateRelatively Low$297,822$83,107$82,163$463,092182Includes 71 High Wind and 2 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
5Inland FloodingVery LowVery Low$436,460$411$1,750$438,62119
6Cold WaveRelatively LowRelatively Low$2,235$19$216,619$218,8734Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
7WildfireVery LowVery Low$47,764$363$3,501$51,6283
8Ice StormRelatively LowRelatively Low$29,768n/a$4,121$33,8894
9Heat WaveVery LowVery Low$32$5,429$26,759$32,2202
10LightningVery LowVery Low$2,611n/a$11,052$13,6620No recorded events in Storm Events since 1996 (data through 2026-06-30).
11Winter WeatherVery LowVery Low$10,066$99$1,835$12,00156
12EarthquakeVery LowVery Low$6,789n/a$2,115$8,904Storm Events does not record earthquakes.
13HurricaneVery LowVery Low$722$2,817$7$3,5461Includes 1 Tropical Depression record (outside NRI's Hurricane definition).
14LandslideVery LowVery Low$2n/a$2$40No 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 landslide 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: avalanche, 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
Earthquaketract 9501 (Very Low, 19.7); tract 9502 (Very Low, 18.1); tract 9503 (Very Low, 14.3)
Hurricanetract 9502 (Very Low, 40.3); tract 9501 (Very Low, 40.1); tract 9503 (Very Low, 37.4)
Landslidetract 9501 (Very Low, 56.9); tract 9503 (Very Low, 21.5); tract 9502 (Very Low, 19.7)
Tornadotract 9501 (Relatively High, 89.8); tract 9502 (Relatively High, 89.4); tract 9503 (Relatively High, 80.9)
Wildfiretract 9501 (Relatively Moderate, 93.8); tract 9502 (Relatively Low, 80.4); tract 9503 (Relatively Low, 76.5)

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 9501 is Census Tract 9501). 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
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill3 records, 2011 to 2026 (3 zone-level)2 days to 4 days (median 4 days); 3 with a recorded value4 consecutive days, 2026-01-23 to 2026-01-26, zone-levelCountywide (zone-level records).Wind chill: in event narratives only (local data needed).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2011 (1 zone-level)No crop damage reported in 1 record.Countywide (zone-level records).Temperature: in event narratives only (local data needed).
DroughtU.S. Drought Monitor scale (D0 to D4)91 records, 1996 to 2022 (91 zone-level)1 day to 790 days (median 120.5 days); 16 with a recorded value790 days (about 26.0 months), 2012-08-01 to 2014-09-29, a run of 26 consecutive Storm Events drought records, zone-levelDrought, 1996-06-01, $100,000 property; $500,000 crops, reported for the zone (1996 dollars)Countywide (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)203 records, 1957 to 20260.5 in to 4.5 in (median 1.5 in); 203 with a recorded value4.5 in hail, 1985-04-10; same size also recorded on 1985-04-10Hail, 2002-06-04, property not reported; $600,000 crops (2002 dollars)No event record names a jurisdiction in the plan.
Excessive Heat, Heatheat index (in event narratives)2 records, 2008 to 2017 (2 zone-level)1 day to 20 days (median 10.5 days); 2 with a recorded valueJune 2008 (1 monthly summary record), zone-levelCountywide (zone-level records).Heat index: in event narratives only (local data needed).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson1 record, 2007 (1 zone-level)Strongest recorded: Tropical Depression record, 2007-08-17 to 2007-08-18, $0 property; $0 crops (2007 dollars); NWS zone TXZ036Countywide (zone-level records).Storm 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)4 records, 2007 to 2015 (4 zone-level)Ice Storm, 2015-11-27, $650,000 property; $0 crops (2015 dollars); NWS zone TXZ036Countywide (zone-level records).Ice thickness: in event narratives only (local data needed).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)19 records, 1996 to 2025 (1 zone-level)Flood, 2015-07-06, $0 property; $2,000,000 crops (2015 dollars)No event record names a jurisdiction in the plan. Zone-level records (1) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0Physical 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)73 records, 1996 to 2026 (73 zone-level)34 kt (39 mph) to 71 kt (82 mph) (median 52 kt (60 mph)); 69 with a recorded value71 kt (82 mph) measured gust, High Wind, 2023-02-26; NWS zone TXZ036High Wind, 2019-03-13, $100,000 property; $0 crops, reported for the zone (2019 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)123 records, 1955 to 2026 (5 zone-level)50 kt (58 mph) to 87 kt (100 mph) (median 55 kt (63 mph)); 106 with a recorded value87 kt (100 mph) estimated gust, Thunderstorm Wind, 2017-09-17Thunderstorm Wind, 2018-06-01, $3,500,000 property; crops not reported (2018 dollars)No event record names a jurisdiction in the plan. Zone-level records (5) apply countywide.
TornadoEnhanced Fujita (Fujita before Feb 2007)56 records, 1955 to 2025F/EF0 to F/EF3 (median F/EF0); 50 with a recorded valueF3 tornado, 2005-05-12, 6 mi within this county, 500 yd wide, $300,000 property; $200,000 crops (2005 dollars)Tornado, 1999-06-11, $10,000 property; $500,000 crops (1999 dollars)No event record names a jurisdiction in the plan.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)3 records, 2008 to 2013 (3 zone-level)Wildfire, 2011-04-09, $200,000 property; $0 crops (2011 dollars); NWS zone TXZ036Countywide (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)56 records, 1997 to 2026 (56 zone-level)Winter Weather, 2012-03-08, $10,000 property; $0 crops (2012 dollars); NWS zone TXZ036Countywide (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.

A monthly summary record covers most or all of a month; it does not count days at wave conditions.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 16 declarations covering 9 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

No county-level plan row in FEMA data, 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 dollarsNotes
2021-02-192021-02-11DR-4586-TXMajor disasterSevere Winter StormsIce Storm$27,264.23
2021-02-142021-02-11EM-3554-TXEmergencySevere Winter StormIce Stormno Public Assistance recordedsame incident as DR-4586
2020-03-252020-01-20DR-4485-TXMajor disasterCOVID-19 PandemicNon-natural, not countedno Public Assistance recorded
2020-03-132020-01-20EM-3458-TXEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4485
2016-02-092015-12-26DR-4255-TXMajor disasterSevere Winter Storms, Tornadoes, Straight-Line Winds, and FloodingInland Flooding; Strong Wind; Tornado; Winter Weatherno Public Assistance recorded
2011-07-012011-04-06DR-1999-TXMajor disasterWildfiresWildfire$7,620.75
2008-03-142008-03-14EM-3284-TXEmergencyWildfiresWildfireno Public Assistance recorded
2006-01-112005-11-27DR-1624-TXMajor disasterExtreme Wildfire ThreatWildfire$2,437.50
2005-09-242005-09-23DR-1606-TXMajor disasterHurricane RitaHurricane: evacuation support (county designated for sheltering evacuees, no Individual Assistance), not a local hazard event; not countedno Public Assistance recorded
2005-09-212005-09-20EM-3261-TXEmergencyHurricane RitaHurricane: evacuation support (county designated for sheltering evacuees, no Individual Assistance), not a local hazard event; not countedno Public Assistance recordedsame incident as DR-1606
2005-09-022005-08-29EM-3216-TXEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2001-01-082000-12-12DR-1356-TXMajor disasterSevere Winter Ice StormIce Storm$22,698.90
1999-09-011999-08-01EM-3142-TXEmergencyExtreme Fire HazardsWildfireno Public Assistance recorded
1998-08-261998-08-22DR-1239-TXMajor disasterTropical Storm CharleyHurricane; Inland Flooding: designated for Hazard Mitigation only (no Public or Individual Assistance for this county); not countedPA not declared for this county
1993-09-101993-08-30EM-3113-TXEmergencyExtreme Fire HazardDrought (primary); also designated: Wildfireno Public Assistance recorded
1992-09-091992-05-01DR-960-TXMajor disasterExcessive Rain & HailHailPA not declared for this county

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
1998-06-231998-06-04EM-3127-TXEmergencyFireWildfire
1963-09-241963-09-24DR-159-TXMajor disasterHurricane CindyHurricane (primary); also designated: Inland Flooding
1961-09-161961-09-16DR-118-TXMajor disasterHurricane CarlaHurricane (primary); also designated: Inland Flooding
1960-07-151960-07-15DR-103-TXMajor disasterHeavy Rains, Hail, Floods & TornadoesHail; Inland Flooding; Tornado
1959-07-081959-07-08DR-93-TXMajor disasterFloodsInland Flooding
1958-06-061958-06-06DR-85-TXMajor disasterTornadoes, Rain, Hail & FloodsTornado (primary); also designated: Hail, Inland Flooding
1957-04-291957-04-29DR-72-TXMajor disasterHurricane, Rain, Wind, Hail & FloodsHurricane (primary); also designated: Hail, Inland Flooding
1954-07-011954-07-01DR-18-TXMajor disasterFloodInland Flooding
1953-06-191953-06-19DR-9-TXMajor disasterFloodInland Flooding
1953-05-151953-05-15DR-2-TXMajor disasterTornado & Heavy RainfallTornado

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.

91 Fire Management declarations (1988-03-12 to 2009-04-10) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance not placed in any Texas county: 1 row, $902,084.65; listed on the Texas 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
Cold Wave4101996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought91911996 to 2026-06-30
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail2031311955 to 2026-06-30
Heat Wave2001996 to 2026-06-30
Hurricane1001996 to 2026-06-30Includes 1 Tropical Depression record.
Ice Storm4021996 to 2026-06-30
Inland Flooding19311996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Strong Wind1965111955 to 2026-06-30Includes 71 High Wind and 2 Strong Wind records.
Tornado56311950 to 2026-06-30
Wildfire3051996 to 2026-06-30
Winter Weather56411996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2026-01-23Extreme Cold/Wind Chill$0 property; $0 crops, reported for the zone (2026 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelwithin last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2023-02-26High Wind71 kt (82 mph) measured gust$0 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelwithin last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2017-09-17Thunderstorm Wind87 kt (100 mph) estimated gust$1,500,000 property; $500,000 crops (2017 dollars)0, 0ESTACADO to WAKEB1-c worst recorded: Thunderstorm Wind
2015-11-27Ice Storm$650,000 property; $0 crops, reported for the zone (2015 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelB1-c worst recorded: Ice Storm
2015-07-06Flood$0 property; $2,000,000 crops (2015 dollars)0, 0LORENZO AIRFIELD ARP to ROBERTSONB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2012-08-01Drought$0 property; $0 crops, reported for the zone (2012 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelB1-c worst recorded: Drought
2011-04-09Wildfire$200,000 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelB1-c worst recorded: Wildfire
2008-06-01Heat$0 property; $100,000 crops, reported for the zone (2008 dollars)0, 0NWS zone TXZ036 (CROSBY), zone-levelB1-c worst recorded: Excessive Heat, Heat
2005-05-12TornadoF3, 6 mi within this county, 500 yd wide$300,000 property; $200,000 crops (2005 dollars)0, 0RALLSB1-c worst recorded: Tornado
1997-04-10TornadoF1, 0.2 mi within this county, 50 yd wide$25,000 property; $0 crops (1997 dollars)1, 1KALGARYdeaths or injuries recorded
1985-04-10Hail4.5 indamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Hail
1979-03-18TornadoF1, 10.5 mi path length (whole path, pre-1996), 300 yd wide$250,000 property; crops not recorded (1979 dollars)0, 2location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (635 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
Cold Wave1.26event-days per yearabout 1.26 days per yearPossible (from Storm Events: 1 of 30 years)event-days in 1 of 30 years, 1996 to 2025 (3.33%)242005-11-12 to 2024-11-12 (19 years)countywide
Drought77event-days per yearabout 77 days per yearLikely (from Storm Events: 14 of 30 years)event-days in 14 of 30 years, 1996 to 2025 (46.7%)2,3942000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000456annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0456%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail4.94events per yearabout 4.94 per yearHighly likelyFEMA annualized frequency (modeled)187.8 (modeled)1986 to 2023 (38 years)countywide
Heat Wave2.37event-days per yearabout 2.37 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)382005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.00575events per yearabout 1 in 174 yearsUnlikelyFEMA annualized frequency (modeled)21851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.469event-days per yearabout 0.469 days per yearLikely (from Storm Events: 3 of 30 years)event-days in 3 of 30 years, 1996 to 2025 (10%)321946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding0.571event-days per yearabout 0.571 days per yearLikely (from Storm Events: 13 of 30 years)event-days in 13 of 30 years, 1996 to 2025 (43.3%)161996 to 2023 (28 years)see B1-f
Landslide0.127events per year (modeled)about 1 in 8 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning49.1days per year with a strikeabout 49.1 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind2.21events per yearabout 2.21 per yearHighly likelyFEMA annualized frequency (modeled)851986 to 2023 (38 years)countywide
Tornado0.605events per yearabout 0.6 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.00247annual probability at a locationchance a given location in the county burns in a year: 0.247%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 Weather7.21event-days per yearabout 7.21 days per yearLikely (from Storm Events: 22 of 30 years)event-days in 22 of 30 years, 1996 to 2025 (73.3%)1372005-11-12 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 202589302.97
Hail2.00 in+1996 to 202512300.4
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202590303
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202510300.333
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20253300.1
TornadoEF0-11996 to 202514300.467
TornadoEF2-31996 to 20252300.0667
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20256300.2

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
Cold Wave3 of 364.371.975.3Relatively Moderate 3
Drought3 of 399.299.499.4Relatively High 3
Earthquake3 of 314.318.119.7Very Low 3
Hail3 of 398.699.299.3Very High 3
Heat Wave3 of 318.426.129.1Relatively Low 3
Hurricane3 of 337.440.140.3Very Low 3
Ice Storm3 of 378.880.385.5Relatively Moderate 3
Inland Flooding3 of 34.412.721.1Relatively Low 1, Very Low 2
Landslide3 of 319.721.556.9Very Low 3
Lightning3 of 329.837.942.6Relatively Low 3
Strong Wind3 of 396.698.498.8Very High 2, Relatively High 1
Tornado3 of 380.989.489.8Relatively High 3
Wildfire3 of 376.580.493.8Relatively Moderate 1, Relatively Low 2
Winter Weather3 of 362.772.478.0Relatively Moderate 3

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.

Hail: Agriculture is 59% of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

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

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

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

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

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
No rows for this unit.

No city, town, township or county rows in FEMA plan data for this unit; same as county.

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 county-level plan row in FEMA data, 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
  • Texas A&M Forest Service TxWRAP for wildfire risk; Texas State Hazard Mitigation Plan hazard list for B1-a exclusions.

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
Cold Wave$1,231,998,880$111,844,7695,131$2,235$19$216,6190.000181%
Droughtn/a$69,324,551n/an/a$1,765,668n/a2.55% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$2,214,256,203n/a5,133$6,789n/a$2,1150.000307%
Hail$1,231,998,880$111,844,7695,131$361,642$542,618$9,7370.0294%
Heat Wave$1,231,998,880$111,844,7695,131$32$5,429$26,759under 0.0001%
Hurricane$1,231,748,105$106,113,9375,130$722$2,817$7under 0.0001%
Ice Storm$1,231,998,880n/a5,131$29,768n/a$4,1210.00242%
Inland Flooding$1,231,622,120$48,79276$436,460$411$1,750n/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$1,660,929n/a6$2n/a$20.000121%
Lightning$1,231,998,880n/a5,131$2,611n/a$11,0520.000212%
Strong Wind$1,231,998,880$111,844,7695,131$297,822$83,107$82,1630.0242%
Tornado$1,231,998,880$111,844,7695,131$232,012$15,244$373,1340.0188%
Wildfire$292,320,282$19,212,8871,378$47,764$363$3,5010.0163%
Winter Weather$1,231,998,880$111,844,7695,131$10,066$99$1,8350.000817%

Totals since the plan: not available. No county-level plan row in FEMA data, 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
Population5,131
Building value (total, not at risk)$1,231,998,880
Agriculture value (total, not at risk)$111,844,769
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$3,843,699
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)$732,795
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 definition2Severe 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 and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0020200
of which: Crosbyton city (community ID not in plan data)0020200
Statewide, no county in FEMA's file381271319

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0020200
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 2 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). Crosby County, TX: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 48107). Automated baseline. https://hazardplain.org/tx/48107/ 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: contact@hazardplain.org

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