Hazard Plain Automated baseline

Loíza Municipio, PR

Risk-assessment baseline packet

County FIPS:
72087
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: Expired on 2026-08-23. Plan: Loíza 2021 (FEMA plan 107509), approved 2021-08-24.

Update: FEMA tracker shows a plan in progress.

Since the plan was approved on 2021-08-24: 4 new hazard declarations (2 incidents): EM-3583-PR (Tropical Storm Fiona), DR-4671-PR (Hurricane Fiona), EM-3610-PR (Tropical Storm Ernesto), DR-4850-PR (Tropical Storm Ernesto).

NOAA Storm Events records since that date: 23 records (data through 2026-06-30).

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Hurricane ($9,994,326 a year), Tsunami ($6,221,731) and Earthquake ($4,002,128).

Repetitive-loss flood properties now: FMA RL 5, SRL 3 (44 CFR 77.2); any definition: 28.

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

Plan clock

Status:
Expired on 2026-08-23
Plan:
Loíza 2021 (FEMA plan 107509)
Approved:
2021-08-24
Days since expiry:
38
Update underway:
FEMA tracker shows a plan in progress

Until a new plan is approved, FEMA mitigation project grants (HMGP, FMA) need a FEMA exception (44 CFR 201.6(a)(3)).

What changed since your last plan (approved 2021-08-24)

New federal declarations:
4 new hazard declarations (2 incidents): EM-3583-PR (Tropical Storm Fiona), DR-4671-PR (Hurricane Fiona), EM-3610-PR (Tropical Storm Ernesto), DR-4850-PR (Tropical Storm Ernesto)
Storm Events records since approval:
23 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 5, SRL 3 (44 CFR 77.2); any definition: 28
Repeat-flood change:
this release sets the baseline count.

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

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underway
Loíza MunicipioCountyExpired on 2026-08-23Loíza 2021 (FEMA plan 107509)2021-08-242026-08-23-38FEMA tracker shows a plan in progress

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
1HurricaneInsufficient DataRelatively High$9,200,979$0$793,347$9,994,32610Includes 1 Tropical Depression record (outside NRI's Hurricane definition).
2TsunamiInsufficient DataRelatively Moderate$13,100n/a$6,208,630$6,221,7310No recorded events in Storm Events since 1996 (data through 2026-06-30).
3EarthquakeInsufficient DataRelatively Moderate$1,839,880n/a$2,162,248$4,002,128Storm Events does not record earthquakes.
4Inland FloodingInsufficient DataVery Low$1,295,858$0$46,025$1,341,882106
5LightningInsufficient DataRelatively Low$5,993n/a$306,749$312,7411
6Coastal FloodingInsufficient DataRelatively Low$76,583n/a$42,009$118,59217
7TornadoInsufficient DataVery Low$2,461$0$3,566$6,0270No recorded events in Storm Events since 1996 (data through 2026-06-30).
8Volcanic ActivityInsufficient DataVery Low$1n/a$567$5685
9HailInsufficient DataVery Low$35$0$333$3670No recorded events in Storm Events since 1996 (data through 2026-06-30).
10Strong WindInsufficient DataVery Low$81$0$61$1428Includes 3 Strong Wind records (a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition).
11LandslideInsufficient DataVery Low$23n/a$4$2613
12Cold WaveInsufficient DataNo Expected Annual Losses$0$0$0$00No recorded events in Storm Events since 1996 (data through 2026-06-30).
13DroughtInsufficient DataNo Expected Annual Lossesn/a$0n/a$01
14Heat WaveInsufficient DataNo Expected Annual Losses$0$0$0$08
15Winter WeatherInsufficient DataNo Expected Annual Losses$0$0$0$00No recorded events in Storm Events since 1996 (data through 2026-06-30).
WildfireInsufficient DataInsufficient Datan/an/an/an/a1

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 tsunami, tornado, hail, cold wave and winter weather 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 and ice storm. 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, Lightning, Strong Wind and Winter Weather.

Coastal Flooding and 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
Earthquakeno tract has a National Risk Index rating for this hazard
Hurricaneno tract has a National Risk Index rating for this hazard
Landslideno tract has a National Risk Index rating for this hazard
Tornadono tract has a National Risk Index rating for this hazard
Tsunamino tract has a National Risk Index rating for this hazard
Volcanic Activityno tract has a National Risk Index rating for this hazard
Wildfireno tract has a National Risk Index rating for this hazard

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number. 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
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)17 records, 2008 to 2026 (17 zone-level)Coastal Flood, 2026-02-10, $82,500 property; $0 crops (2026 dollars); NWS zone PRZ002Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill0Wind chill: in event narratives only (local data needed).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0Temperature: in event narratives only (local data needed).
DroughtU.S. Drought Monitor scale (D0 to D4)1 record, 2022 (1 zone-level)17 days; 1 with a recorded value17 days, 2022-06-14 to 2022-06-30, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)0
Excessive Heat, Heatheat index (in event narratives)8 records, 2023 to 2024 (8 zone-level)1 day to 30 days (median 2 days); 5 with a recorded valueSeptember 2023 (1 monthly summary record), zone-levelCountywide (zone-level records).Heat index: in event narratives only (local data needed).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson10 records, 2000 to 2024 (10 zone-level)Strongest recorded: Hurricane (Typhoon) record (NOAA's event type name), 2000-08-22 to 2000-08-23, $41,000 property; crops not reported (2000 dollars); NWS zone PRZ002Most damaging recorded: Tropical Storm, 2001-08-22, $200,000 property; crops not reported, reported for the zone (2001 dollars)Countywide (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.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)106 records, 2000 to 2024 (99 zone-level)Flash Flood, 2003-04-17, $11,100,000 property; crops not reported (2003 dollars), 2 direct deaths (reported for the zone); NWS zone PRZ002No event record names a jurisdiction in the plan. Zone-level records (99) 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)13 records, 2003 to 2011 (13 zone-level)No damage reported in 13 records.Countywide (zone-level records).Physical measure: in event narratives only (local data needed).
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)1 record, 2006 (1 zone-level)Lightning, 2006-07-10, $5,000 property; crops not reported (2006 dollars); NWS zone PRZ002Countywide (zone-level records).Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed).
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)3 records, 2003 to 2026 (3 zone-level)24 kt (28 mph) to 40 kt (46 mph) (median 40 kt (46 mph)); 3 with a recorded value40 kt (46 mph) estimated gust, Strong Wind, 2005-05-09; same speed and measurement basis also recorded on 2003-10-10; NWS zone PRZ002Strong Wind, 2003-10-10, $15,000 property; crops not reported, reported for the zone (2003 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)5 records, 2002 to 2015 (3 zone-level)40 kt (46 mph) to 43 kt (49 mph) (median 41.5 kt (48 mph)); 2 with a recorded value43 kt (49 mph) estimated gust, Thunderstorm Wind, 2010-07-06No event record names a jurisdiction in the plan. Zone-level records (3) apply countywide.
TornadoEnhanced Fujita (Fujita before Feb 2007)0Before 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).
Tsunaminone (count and damage only)0Physical measure: in event narratives only (local data needed).
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)5 records, 2001 to 2004 (5 zone-level)No damage reported in 5 records.Countywide (zone-level records).Physical measure: in event narratives only (local data needed).
Wildfireacres burned (local data)1 record, 2007 (1 zone-level)No damage reported in 1 record.Countywide (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)0Snow 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: 28 declarations covering 22 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-11-272024-08-13DR-4850-PRMajor disasterTropical Storm ErnestoHurricane (primary); also designated: Inland Flooding, Landslide$103,025.65new since last plan; within last 5 years
2024-08-132024-08-13EM-3610-PREmergencyTropical Storm ErnestoHurricane; Inland Flooding; Landslideno Public Assistance recordednew since last plan; within last 5 yearssame incident as DR-4850
2022-09-212022-09-17DR-4671-PRMajor disasterHurricane FionaHurricane$1,078,928.57new since last plan; within last 5 years
2022-09-182022-09-17EM-3583-PREmergencyTropical Storm FionaHurricaneno Public Assistance recordednew since last plan; within last 5 yearssame incident as DR-4671
2020-08-222020-08-21EM-3537-PREmergencyTropical Storm LauraHurricaneno Public Assistance recorded
2020-07-292020-07-27EM-3532-PREmergencyPotential Tropical Cyclone NineHurricaneno Public Assistance recorded
2020-03-272020-01-20DR-4493-PRMajor disasterCOVID-19 PandemicNon-natural, not countedno Public Assistance recorded
2020-03-132020-01-20EM-3452-PREmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4493
2020-01-072019-12-28EM-3426-PREmergencyEarthquakesEarthquakeno Public Assistance recorded
2019-08-272019-08-26EM-3417-PREmergencyTropical Storm DorianHurricaneno Public Assistance recorded
2017-09-202017-09-17DR-4339-PRMajor disasterHurricane MariaHurricane$28,166,542.33
2017-09-182017-09-17EM-3391-PREmergencyHurricane MariaHurricaneno Public Assistance recordedsame incident as DR-4339
2017-09-102017-09-05DR-4336-PRMajor disasterHurricane IrmaHurricane$154,855.85
2011-08-272011-08-21DR-4017-PRMajor disasterHurricane IreneHurricane$484,226.22
2011-08-222011-08-21EM-3326-PREmergencyHurricane IreneHurricaneno Public Assistance recordedsame incident as DR-4017
2004-09-172004-09-14DR-1552-PRMajor disasterTropical Storm Jeanne and Resulting Landslides and MudslidesHurricane; Landslide$292,627.18
2003-11-212003-11-10DR-1501-PRMajor disasterSevere Storms, Flooding, Mudslides, and LandslidesInland Flooding; LandslidePA not declared for this county
1999-11-171999-11-17EM-3151-PREmergencyHurricane LennyHurricaneno Public Assistance recorded
1998-09-241998-09-20DR-1247-PRMajor disasterHurricane Georges - 18 Sep 98Hurricaneno Public Assistance recorded
1996-09-111996-09-09DR-1136-PRMajor disasterHurricane HortenseHurricaneno Public Assistance recorded
1995-09-161995-09-15DR-1068-PRMajor disasterHurricane MarilynHurricanePA not declared for this county
1992-01-221992-01-05DR-931-PRMajor disasterSevere Storms & FloodingInland FloodingPA not declared for this county
1989-09-211989-09-17DR-842-PRMajor disasterHurricane HugoHurricaneno Public Assistance recorded
1987-12-171987-11-24DR-805-PRMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1985-10-101985-10-04DR-746-PRMajor disasterSevere Storms, Flooding & MudslidesInland Flooding (primary); also designated: Landslideno Public Assistance recorded
1979-09-021979-09-02DR-597-PRMajor disasterHurricane DavidHurricaneno Public Assistance recorded
1975-09-191975-09-19DR-483-PRMajor disasterTropical Storm ElioiseInland Flooding (primary); also designated: Hurricaneno Public Assistance recorded
1970-10-121970-10-12DR-296-PRMajor disasterHeavy Rains & FloodingInland Floodingno Public Assistance recorded

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

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1998-09-211998-09-20EM-3130-PREmergencyHurricane Georges (Direct Federal Assist First 72 Hrs)Hurricane
1964-05-261964-05-26DR-170-PRMajor disasterExtreme Drought ConditionsDrought
1956-08-181956-08-18DR-62-PRMajor disasterHurricaneHurricane (primary); also designated: Inland Flooding

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

Public Assistance filed under this county for declarations that do not list it: 1 row, $213,633.69

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
EM-3384-PR2017-09-05Hurricane IrmaLoiza (Municipio)$213,633.69

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

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
Coastal Flooding1710210001996 to 2026-06-30
Cold Wave0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Drought1101001996 to 2026-06-30
Earthquake000010Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail0000001955 to 2026-06-30No recorded events, 1955 to 2026-06-30, NOAA NCEI Storm Events
Heat Wave8808001996 to 2026-06-30
Hurricane101011621996 to 2026-06-30Includes 1 Tropical Depression record.
Inland Flooding106222711996 to 2026-06-30
Landslide13000411996 to 2026-06-30
Lightning1000001996 to 2026-06-30
Strong Wind8101001955 to 2026-06-30Includes 3 Strong Wind records.
Tornado0000001950 to 2026-06-30No recorded events, 1950 to 2026-06-30, NOAA NCEI Storm Events
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity5000001996 to 2026-06-30
Wildfire1000001996 to 2026-06-30
Winter Weather0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2026-02-10Coastal Flood$82,500 property; $0 crops, reported for the zone (2026 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2023-09-01Excessive Heat$0 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2022-06-14Drought$0 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Drought
2010-07-06Thunderstorm Wind43 kt (49 mph) estimated gust$15,000 property; $0 crops (2010 dollars)0, 0LOIZAB1-c worst recorded: Thunderstorm Wind
2008-09-01Flash Flood$0 property; $0 crops, reported for the zone (2008 dollars)2, 0NWS zone PRZ002 (NORTHEAST), zone-leveldeaths or injuries recorded
2006-07-10Lightning$5,000 property; crops not reported, reported for the zone (2006 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelB1-c worst recorded: Lightning
2005-09-16Flash Flooddamage not reported1, 0NWS zone PRZ002 (NORTHEAST), zone-leveldeaths or injuries recorded
2005-05-09Strong Wind40 kt (46 mph) estimated gust$100 property; crops not reported, reported for the zone (2005 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelB1-c worst recorded: High Wind and Strong Wind
2003-10-10Strong Wind40 kt (46 mph) estimated gust$15,000 property; crops not reported, reported for the zone (2003 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelB1-c most damaging: High Wind and Strong Wind
2003-04-17Flash Flood$11,100,000 property; crops not reported, reported for the zone (2003 dollars)2, 0NWS zone PRZ002 (NORTHEAST), zone-leveldeaths or injuries recorded
2001-08-22Tropical Storm$200,000 property; crops not reported, reported for the zone (2001 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelB1-c most damaging: Hurricane, Tropical Storm, Tropical Depression
2000-08-22Hurricane (Typhoon), NOAA's event type name$41,000 property; crops not reported, reported for the zone (2000 dollars)0, 0NWS zone PRZ002 (NORTHEAST), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression

The full list is in the Excel file, sheet "B1-d Storm Events history" (170 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).

FEMA's declaration data list no tribal or special-area declarations for this state.

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
Coastal Flooding0.212events per year at a location (modeled)about 0.21 per year at a given location in the countyLikely (from Storm Events: 10 of 30 years)Storm Events records in 10 of 30 years, 1996 to 2025 (33.3%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI.
Cold Wave0event-days per yearnone modeledevent-days in 0 of 30 years, 1996 to 2025 (0%)02005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events cold wave record, 1996 to 2025.
Drought0.122event-days per yearabout 0.122 days per yearPossible (from Storm Events: 1 of 30 years)event-days in 1 of 30 years, 1996 to 2025 (3.33%)352000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.0444annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 4.44%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail0.0266events per yearabout 1 in 38 yearsPossibleFEMA annualized frequency (modeled)1.2 (modeled)1986 to 2023 (38 years)countywide
Heat Wave0.000288event-days per yearabout 0.000288 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)0.001712005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.224events per yearabout 1 in 4 yearsLikelyFEMA annualized frequency (modeled)421851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Inland Flooding0.214event-days per yearabout 0.214 days per yearLikely (from Storm Events: 15 of 30 years)event-days in 15 of 30 years, 1996 to 2025 (50%)61996 to 2023 (28 years)see B1-f
Landslide0.01events per year (modeled)about 1 in 100 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning71days per year with a strikeabout 71 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.00498events per yearabout 1 in 201 yearsUnlikelyFEMA annualized frequency (modeled)11986 to 2023 (38 years)countywide
Tornado0.00115events per yearabout 1 in 867 yearsUnlikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunami0.0557annual probability at the most exposed location (used in place of a county value)chance at the county's most exposed location in a year: 5.57%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Volcanic Activity0.0101annual probabilityabout 1 in 99 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Wildfireannual probability at a locationPossible (from Storm Events: 1 of 30 years)Storm Events records in 1 of 30 years, 1996 to 2025 (3.33%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI.
Winter Weather0event-days per yearnone modeledevent-days in 0 of 30 years, 1996 to 2025 (0%)02005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events winter weather record, 1996 to 2025

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

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

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

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 20250300
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20252300.0667
TornadoEF0-11996 to 20250300
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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
Coastal Flooding0 of 10Insufficient Data 10
Cold Wave0 of 10Insufficient Data 10
Drought0 of 10Insufficient Data 10
Earthquake0 of 10Insufficient Data 10
Hail0 of 10Insufficient Data 10
Heat Wave0 of 10Insufficient Data 10
Hurricane0 of 10Insufficient Data 10
Inland Flooding0 of 10Insufficient Data 10
Landslide0 of 10Insufficient Data 10
Lightning0 of 10Insufficient Data 10
Strong Wind0 of 10Insufficient Data 10
Tornado0 of 10Insufficient Data 10
Tsunami0 of 10Not Applicable 4, Insufficient Data 6
Volcanic Activity0 of 10Insufficient Data 10
Wildfire0 of 10Insufficient Data 10
Winter Weather0 of 10Insufficient Data 10

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.

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
Loíza MunicipioCountyExpired on 2026-08-23FMA RL 5, SRL 3; any 28$29,476,325.350 total; 0 since its planPuerto Rico commonwealth community (720000): this row counts only its properties in this municipio, as the county table does.

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

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

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

Local data needed

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

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

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

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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2021-08-24county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Coastal Flooding$1,927,769,758n/a16,406$76,583n/a$42,0090.00397%$103,100
Cold Wave$0$00$0$0$0building exposure is 0 in NRI
Droughtn/a$0n/an/a$0n/a$0agriculture exposure is 0 in NRI
Earthquake$4,425,930,522n/a23,693$1,839,880n/a$2,162,2480.0416%
Hail$2,855,894,402$023,684$35$0$333under 0.0001%
Heat Wave$36,875,397$0321$0$0$00%$0
Hurricane$2,855,854,239$023,684$9,200,979$0$793,3470.322%$0$1,181,954.22
Inland Flooding$2,848,987,544$08,538$1,295,858$0$46,025n/a (see note)$800$103,025.65NRI 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$7,977,179n/a61$23n/a$40.000285%$103,025.65
Lightning$2,855,894,402n/a23,684$5,993n/a$306,7490.00021%
Strong Wind$2,855,894,402$023,684$81$0$61under 0.0001%$6,000Storm Events damage since the plan includes 1 zone-level Strong Wind record ($6,000): a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition.
Tornado$2,855,894,402$023,684$2,461$0$3,566under 0.0001%
Tsunami$1,524,784,260n/a3,920$13,100n/a$6,208,6300.000859%
Volcanic Activity$2,855,894,402n/a23,684$1n/a$567under 0.0001%
Wildfiren/an/an/an/an/an/aNRI publishes no building exposure for this county
Winter Weather$0$00$0$0$0building exposure is 0 in NRI

Totals since 2021-08-24 (Storm Events through 2026-06-30): 2 county-coded records, 2 with a damage value recorded (including $0), $800; 21 zone-level records, 21 with a damage value recorded (including $0), $109,100 reported for the zone; Public Assistance: $1,181,954.22 on 4 counted declarations, 2 of them with Public Assistance.

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

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

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

County context

Source: 5

MeasureValue
Population23,684
Building value (total, not at risk)$2,855,894,402
Agriculture value (total, not at risk)$0
NRI risk rating (all hazards)Insufficient Data
Expected annual loss, buildings and agriculture, all hazards$12,434,993
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)$9,563,538
Social vulnerability ratingData Unavailable
Community resilience ratingData Unavailable
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)5Severe repetitive loss, FMA definition (44 CFR 77.2)3
Repetitive loss, NFIP insurance definition28Severe repetitive loss, NFIP insurance definition3

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 total532832801
of which: Commonwealth of Puerto Rico532832801
Statewide, no county in FEMA's file541651,5721581,574038

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.

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Loíza Municipio720000532832801Puerto Rico commonwealth community (720000): this row counts only its properties in this municipio, as the county table does.

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

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

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential532732701
2 to 4 unit residential0010100
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 23 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). Loíza Municipio, PR: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 72087). Automated baseline. https://hazardplain.org/pr/72087/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

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

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