Hazard Plain Preview: automated baseline

Blanco County, TX

Risk-assessment baseline packet

Unit
County area 48031
Release
2026-10
As of
2026-09-28
Storm Events data through
2026-06-30

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

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

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

Plan clock

Status
Approved, expires 2030-01-15
Plan
Blanco County (FEMA plan 109553)
Approved
2025-01-16
Expires
2030-01-15
As of
2026-09-28
Days
1,205 days to expiry

What changed since your last plan (approved 2025-01-16)

New federal declarations
EM-3649-TX (1 declaration row; 1 counted incident)
Storm Events records since approval
22 (data through 2026-06-30)
Repetitive loss now
FMA RL 0, SRL 0 (44 CFR 77.2); any definition: 1
Repeat-flood change
First release: no prior release to compare.

Sources

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

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

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

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

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Blanco CountyCountyApproved, expires 2030-01-15Blanco County (FEMA plan 109553)2025-01-162030-01-151,205
Blanco cityCityApproved, expires 2030-01-15Blanco County (FEMA plan 109553)2025-01-162030-01-151,205member approved 2025-04-09
Johnson City cityCityApproved, expires 2030-01-15Blanco County (FEMA plan 109553)2025-01-162030-01-151,205member approved 2025-02-04
Blanco Independent School DistrictSchool/School DistrictApproved, expires 2030-01-15Blanco County (FEMA plan 109553)2025-01-162030-01-151,205member approved 2025-04-09
Johnson City Independent School DistrictSchool/School DistrictApproved, expires 2030-01-15Blanco County (FEMA plan 109553)2025-01-162030-01-151,205member approved 2025-04-16
Blanco Pedernales Water DistrictWater/Sewer AuthorityPlan 109553 approved 2025-01-16, pending adoption here; not yet eligibleBlanco County (FEMA plan 109553), pending adoption here2025-01-16 by FEMA; not yet adopted here2030-01-15 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.

Source

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

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

Supports B1-a: hazards

Hazards NRI does not cover: check locally

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

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

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively LowRelatively Low$2,970,653$13,787$3,617,555$6,601,99584
2DroughtRelatively ModerateRelatively Moderate$1,032,956$1,032,95693
3TornadoRelatively LowRelatively Low$284,111$1,001$606,896$892,0089
4HailRelatively LowRelatively Low$265,340$108,647$43,767$417,75579
5Cold WaveRelatively LowRelatively Low$1,712$10,752$315,817$328,2812
6WildfireRelatively LowRelatively Low$222,236$263$24,489$246,9887
7Strong WindRelatively LowRelatively Low$125,137$2,259$72,206$199,60221
8LightningRelatively LowRelatively Low$974$130,282$131,2560No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
9Heat WaveVery LowVery Low$9$29$131,172$131,2105
10HurricaneVery LowVery Low$73,563$9,428$2,342$85,3320No recorded events in Storm Events since 1996 (data through 2026-06-30).
11Winter WeatherRelatively LowRelatively Low$9,965$357$31,957$42,27824
12Ice StormVery LowVery Low$1,747$5,395$7,1421
13EarthquakeVery LowVery Low$1,370$392$1,762Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
14LandslideVery LowVery Low$110$50$1610No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

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

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

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

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 4
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 4
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.4 of 4
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.4 of 4
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
Inland FloodingThe FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.4 of 4
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.4 of 4
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.4 of 4
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 4
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 4
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.4 of 4
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.4 of 4

Source

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

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill2, 2021 to 2022 (2 zone-level)2 days; 2 with a recorded value2 consecutive days, 2022-12-22 to 2022-12-23, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage0Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale93, 1996 to 2026 (93 zone-level)9 days to 821 days (median 92 days); 18 with a recorded value821 days (27 months), 2022-01-01 to 2024-03-31, a run of 27 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)125, 1963 to 20260.75 in to 6.12 in (median 1 in); 125 with a recorded value6.12 in hail, 2024-05-09Event records naming member places: Johnson City city (30 records), Blanco city (26 records).
Excessive Heat, Heatheat index (narratives)5, 2018 to 2023 (5 zone-level)1 day to 27 days (median 7 days); 5 with a recorded value27 days, 2023-08-01 to 2023-08-27, from 1 monthly summary record (a monthly summary record covers most or all of a month; it does not count days at wave conditions), zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)1, 2026 to 2026 (1 zone-level)No damage reported in 1 records.Zone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)84, 1997 to 2026 (5 zone-level)Flash Flood, 2015-05-23, $20,000,000 property; $0 crops (2015 dollars), 1 direct deathEvent records naming member places: Johnson City city (15 records), Blanco city (10 records). Zone-level records (5) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
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 required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)0
Thunderstorm Windwind speed (kt and mph)31, 1958 to 202350 kt (58 mph) to 78 kt (90 mph) (median 52 kt (60 mph)); 17 with a recorded value78 kt (90 mph) estimated gust, Thunderstorm Wind, 2018-05-15Thunderstorm Wind, 2007-06-03, $200,000 property; crops not reported (2007 dollars)Event records naming member places: Blanco city (9 records), Johnson City city (4 records).
TornadoEnhanced Fujita (F before Feb 2007)19, 1969 to 2025F/EF0 to F/EF3 (median F/EF1); 17 with a recorded valueF3 tornado, 1969-05-06, 15.2 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 100 yd wide, $25,000 property; crops not recorded (1969 dollars), 2 direct injuriesTornado, 1980-08-10, $25,000,000 property; crops not recorded (1980 dollars)Event records naming member places: Johnson City city (3 records), Blanco city (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)7, 2018 to 2022 (7 zone-level)Wildfire, 2022-08-02, $1,000,000 property; $0 crops, reported for the zone (2022 dollars); NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)24, 1996 to 2025 (24 zone-level)Winter Storm, 2023-02-01, $1,400,000 property; $0 crops, reported for the zone (2023 dollars); NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

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

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

Sources

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

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

Supports B1-d: previous occurrences

Declaration rows
21
Counted incidents
14

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-07-182026-07-12EM-3649-TXEmergencyFLOODINGInland Flooding (primary); also designated: Strong Wind, Tornadonot yet in FEMA's PA summaries (they cover declarations through 2026-06-30)new since last plan; within last 5 years
2024-05-172024-04-26DR-4781-TXMajor disasterSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGInland Flooding (primary); also designated: Strong Wind, Tornado$1,113,995.09during plan review, check whether your last plan included it; within last 5 years
2023-04-212023-01-30DR-4705-TXMajor disasterSEVERE WINTER STORMWinter Weather$5,768.25within last 5 years
2021-02-192021-02-11DR-4586-TXMajor disasterSEVERE WINTER STORMSIce Stormnone found
2021-02-142021-02-11EM-3554-TXEmergencySEVERE WINTER STORMIce Stormnone foundsame incident as DR-4586
2020-03-252020-01-20DR-4485-TXMajor disasterCOVID-19 PANDEMICNon-natural, not counted$85,182.85
2020-03-132020-01-20EM-3458-TXEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4485
2015-05-292015-05-04DR-4223-TXMajor disasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODINGInland Flooding; Strong Wind; Tornado$641,176.37
2011-07-012011-04-06DR-1999-TXMajor disasterWILDFIRESWildfirenone found
2008-03-142008-03-14EM-3284-TXEmergencyWILDFIRESWildfirenone found
2006-01-112005-11-27DR-1624-TXMajor disasterEXTREME WILDFIRE THREATWildfire$5,992.09
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 countednone found
2005-09-212005-09-20EM-3261-TXEmergencyHURRICANE RITAHurricane: evacuation support (county designated for sheltering evacuees, no Individual Assistance), not a local hazard event; not countednone foundsame incident as DR-1606
2005-09-022005-08-29EM-3216-TXEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2002-07-042002-06-29DR-1425-TXMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$93,846.86
1999-09-011999-08-01EM-3142-TXEmergencyEXTREME FIRE HAZARDSWildfirenone found
1998-10-211998-10-17DR-1257-TXMajor disasterTX-FLOODING 10/18/98Inland Flooding (primary); also designated: TornadoPA not declared for this county
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
1997-07-071997-06-21DR-1179-TXMajor disasterSEVERE STORMS AND FLOODINGInland Floodingnone found
1993-09-101993-08-30EM-3113-TXEmergencyEXTREME FIRE HAZARDDrought (primary); also designated: Wildfirenone found
1989-05-191989-05-04DR-828-TXMajor disasterSEVERE STORMS, TORNADOES & FLOODINGInland Flooding; Tornadonone found

School districts and special districts in this county: $1,108,217.70 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan members in this county. They are not shown as member blocks, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county); do not add this line to the county total.

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

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

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
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. Listed on every county page in the state; not counted with county rows.

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.

Source

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

Public Assistance not placed in a county in this state: 1 row, $902,084.65

Disaster numberDeclaredApplicantCounty field in FEMA dataPA obligatedfederal share obligated, nominal dollarsWhy not placed
17912008-09-13AOF/Houston Affordable Housing CorporationFulton County$902,084.65county field is a county of another state and the applicant name does not identify a place in the declaring state

FEMA's Public Assistance summaries file these applicants under a county field that is not a county of this state (an Alaska school area, the former Valdez-Cordova Census Area, or another state's county), and the applicant name does not identify one place here. They are listed for the whole state and are not in any county total. Check whether any of them worked in your county.

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave2001001996 to 2026-06-30
Drought9312542101996 to 2026-06-30
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail12521623001955 to 2026-06-30
Heat Wave5003001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm1101101996 to 2026-06-30
Inland Flooding84528711996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Strong Wind31002311955 to 2026-06-30
Tornado19101511950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire7004501996 to 2026-06-30
Winter Weather24104101996 to 2026-06-30

Sources

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

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

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

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2024-05-09Hail6.12 in$10,000,000 property; $0 crops (2024 dollars)0, 0JOHNSON CITYduring plan review, check whether your last plan included it; within last 5 yearsB1-c worst recorded: Hail
2023-08-01Excessive Heat$0 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2023-02-01Winter Storm$1,400,000 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2022-12-22Extreme Cold/Wind Chill$0 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2022-08-02Wildfire$1,000,000 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Wildfire
2022-01-01Drought$0 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone TXZ190 (BLANCO), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Drought
2019-05-03Flash Flood$0 property; $0 crops (2019 dollars)1, 0BLANCOdeaths or injuries recorded
2018-05-15Thunderstorm Wind78 kt (90 mph) estimated gust$10,000 property; $0 crops (2018 dollars)0, 0BLANCOB1-c worst recorded: Thunderstorm Wind
2015-05-23Flash Flood$0 property; $0 crops (2015 dollars)1, 0TWIN SISTERSdeaths or injuries recorded
2015-05-23Flash Flood$20,000,000 property; $0 crops (2015 dollars)1, 0BLANCOB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2001-11-15Flash Flood$100,000 property; $0 crops (2001 dollars)1, 10COUNTYWIDEdeaths or injuries recorded
1969-05-06TornadoF3, 15.2 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 100 yd wide$25,000 property; crops not recorded (1969 dollars)0, 2location not recordedB1-c worst recorded: Tornado

The full list is in the XLSX file, sheet "B1-d Storm Events history" (391 rows).

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

Sources

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

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

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

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

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

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave0.632event-days per yearabout 0.632 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)122005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought118event-days per yearabout 118 days per yearLikelyevent-days in 15 of 30 years, 1996 to 2025 (50%)3,4862000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000225annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0225%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail4.42events per yearabout 4.42 per yearHighly likelyFEMA annualized frequency (modeled)168.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.84event-days per yearabout 4.84 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)852005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 4.84 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 2 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.0164events per yearabout 1 in 61 yearsPossibleFEMA annualized frequency (modeled)61851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm0.519event-days per yearabout 0.519 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)351946-12-31 to 2014-02-12 (67 years)countywideNo recorded event-days, 1996 to 2025; descriptor not assigned
Inland Flooding2.39event-days per yearabout 2.39 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)671996 to 2023 (28 years)see B1-f
Landslide0.231events per year (modeled)about 1 in 4 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning47.5days per year with a strikeabout 47.5 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind1.53events per yearabout 1.53 per yearHighly likelyFEMA annualized frequency (modeled)581986 to 2023 (38 years)countywide
Tornado0.314events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.00198annual probability at a locationchance a given location in the county burns in a year: 0.198%LikelyStorm Events records in 3 of 30 years, 1996 to 2025 (10%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI: the NRI value is the chance at a location in the county, not how often the hazard affects the county.
Winter Weather3.89event-days per yearabout 3.89 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)742005-11-12 to 2024-11-12 (19 years)countywide

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

Sources

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

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

Descriptor scale used in this packet (defined per unit)

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

Sources

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

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

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202543301.43
Hail2.00 in+1996 to 202510300.333
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 202512300.4
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20253300.1
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20256300.2
TornadoEF0-11996 to 20258300.267
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20251300.0333

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

Source

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

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

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 4Not Applicable 4
Coastal Flooding0 of 4Not Applicable 4
Cold Wave4 of 457.763.872.9Relatively Moderate 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought4 of 496.097.398.7Relatively High 2, Relatively Moderate 2National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake4 of 41.93.44.6Very Low 4
Hail4 of 491.392.292.9Relatively High 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave4 of 438.546.259.7Relatively Moderate 1, Relatively Low 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane4 of 453.357.266.9Relatively Low 4
Ice Storm4 of 421.125.135.3Relatively Low 1, Very Low 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding4 of 475.490.898.2Very High 1, Relatively High 2, Relatively Moderate 1
Landslide4 of 465.173.079.1Very Low 4
Lightning4 of 477.783.892.2Relatively High 3, Relatively Moderate 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind4 of 477.979.985.4Relatively High 1, Relatively Moderate 3National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado4 of 475.978.686.1Relatively High 4
Tsunami0 of 4Not Applicable 4
Volcanic Activity0 of 4Not Applicable 4
Wildfire4 of 491.793.294.5Relatively Moderate 4
Winter Weather4 of 480.383.789.8Relatively High 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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

Source

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

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Blanco CountyCountyApproved, expires 2030-01-15FMA RL 0, SRL 0; any 1$196,459.560; 0
Blanco cityCityApproved, expires 2030-01-15FMA RL 0, SRL 0; any 0$497,276.1846; 0
Johnson City cityCityApproved, expires 2030-01-15FMA RL 0, SRL 0; any 0$38,410.1452; 4

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

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

Sources

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

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

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

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

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

Local data required

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

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

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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2025-01-16county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$2,676,374,434$21,873,13511,332$1,712$10,752$315,817under 0.0001%
Drought$8,476,271$1,032,95612.2% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$4,469,712,53811,374$1,370$392under 0.0001%
Hail$2,676,374,434$21,873,13511,332$265,340$108,647$43,7670.00991%$0
Heat Wave$2,676,374,434$21,873,13511,332$9$29$131,172under 0.0001%
Hurricane$2,638,236,963$21,873,13511,248$73,563$9,428$2,3420.00279%
Ice Storm$2,665,576,42711,299$1,747$5,395under 0.0001%$0
Inland Flooding$2,675,035,613$288,985337$2,970,653$13,787$3,617,555n/a (see note)$0none found (1 declaration)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. EAL as % of exposure: n/a.
Landslide$50,287,678199$110$500.000219%
Lightning$2,676,374,43411,332$974$130,282under 0.0001%
Strong Wind$2,676,374,434$21,873,13511,332$125,137$2,259$72,2060.00468%none found (1 declaration)
Tornado$2,676,374,434$21,873,13511,332$284,111$1,001$606,8960.0106%$0none found (1 declaration)
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$1,211,738,593$16,770,3638,501$222,236$263$24,4890.0183%
Winter Weather$2,676,374,434$21,873,13511,332$9,965$357$31,9570.000372%$0

Totals since 2025-01-16 (Storm Events through 2026-06-30): 8 county-coded records, 8 with a damage value recorded (including $0), $0; 14 zone-level records, 14 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance on counted declarations none found (1 declaration, 0 with PA).

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

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

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

Sources

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

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

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

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

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

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

Texas A&M Forest Service TxWRAP for wildfire risk; Texas State Hazard Mitigation Plan hazard list for B1-a exclusions.

Supports B2-a: context

County context

MeasureValue
Population11,332
Building value (total, not at risk)$2,676,374,434
Agriculture value (total, not at risk)$21,873,135
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$5,136,405
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)$4,982,321
Social vulnerability ratingRelatively Moderate
Community resilience ratingRelatively Moderate
NRI versionDecember 2025

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

Source

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

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition1Severe repetitive loss, NFIP insurance definition0

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

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total0010100
BLANCO COUNTY*0010100
State level, not in this county: county not reported381271319

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Blanco County4807110010100
Blanco city4800500000000
Johnson City city4807120000000

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

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

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential0010100
2 to 4 unit residential0000000
other residential0000000
non-residential0000000
not reported0000000

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

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

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

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

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

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 1 property is NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

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

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Cite this: Hazard Plain (2026). Blanco County, TX: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 48031). Preview: automated baseline. Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

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

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_TX_48031. Preview: automated baseline.