Hazard Plain Automated baseline

Passaic County, NJ

Risk-assessment baseline packet

County FIPS:
34031
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

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

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

Summary

Plan status as of 2026-09-30: Approved, expires 2030-08-06. Plan: Passaic County 2025 (FEMA plan 109913), approved 2025-08-07.

Since the plan was approved on 2025-08-07: no new hazard declaration and 10 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($110,988,415 a year), Earthquake ($7,645,864) and Cold Wave ($6,337,501).

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

Plan clock

Status:
Approved, expires 2030-08-06
Plan:
Passaic County 2025 (FEMA plan 109913)
Approved:
2025-08-07
Days to expiry:
1,406

What changed since your last plan (approved 2025-08-07)

New federal declarations:
none
Storm Events records since approval:
10 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 225, SRL 860 (44 CFR 77.2); any definition: 1,752
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: 17 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.

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

Plan clock

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
Passaic CountyCountyApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-10-02
Bloomingdale boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-08-22
Clifton cityCityApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406
Haledon boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-18
Hawthorne boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-11-21
North Haledon boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-12
Passaic cityCityApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-18
Paterson cityCityApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-23
Pompton Lakes boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-12
Prospect Park boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-11-21
Ringwood boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-10-01
Totowa boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-12-05
Wanaque boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-10-01
Woodland Park boroughBoroughApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-08-18
Little Falls townshipTownshipApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-24
Wayne townshipTownshipApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-09-10
West Milford townshipTownshipApproved, expires 2030-08-06Passaic County 2025 (FEMA plan 109913)2025-08-072030-08-061,406this jurisdiction approved 2025-08-18

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
1Inland FloodingRelatively HighRelatively High$105,939,863$36,852$5,011,701$110,988,415175
2EarthquakeRelatively ModerateRelatively Moderate$5,864,475n/a$1,781,389$7,645,864Storm Events does not record earthquakes.
3Cold WaveRelatively HighRelatively High$240$323$6,336,938$6,337,5014
4Heat WaveRelatively ModerateRelatively Moderateunder $1$735$5,716,492$5,717,22710
5Strong WindVery HighRelatively High$598,705$155$5,096,034$5,694,894162Includes 22 High Wind and 9 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
6TornadoRelatively ModerateRelatively Moderate$2,109,675$29$2,842,628$4,952,3311
7HurricaneRelatively ModerateRelatively Moderate$3,891,973$15,735$182,548$4,090,2573
8LightningVery HighRelatively High$419,237n/a$1,751,547$2,170,78415
9Winter WeatherVery HighRelatively High$101,322$1$782,084$883,406114
10Ice StormRelatively ModerateRelatively Moderate$21,605n/a$192,490$214,0954
11DroughtRelatively LowRelatively Lown/a$83,529n/a$83,52911
12HailVery LowVery Low$14,644$1,565$24,414$40,62329
13WildfireVery LowVery Low$3,250under $1$909$4,1590No recorded events in Storm Events since 1996 (data through 2026-06-30).
14LandslideRelatively LowVery Low$3,448n/a$539$3,9870No recorded events in Storm Events since 1996 (data through 2026-06-30).
15Coastal FloodingVery LowVery Low$1,375n/a$24$1,3993
16AvalancheVery LowVery Low$0n/a$14$140No recorded events in Storm Events since 1996 (data through 2026-06-30).

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

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

Local data needed: state and local wildfire and landslide records (Storm Events records these hazards only in part).

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

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

Supports FEMA checklist item B1-b: hazard location

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

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
Avalanchetract 2167.02 (Very Low, 4.6); tract 2568.02 (Very Low, 4.6)
Earthquaketract 1832 (Relatively Moderate, 85.8); tract 2238.02 (Relatively Moderate, 81.3); tract 2463 (Relatively Moderate, 81.0)
Hurricanetract 2238.02 (Relatively Moderate, 80.5); tract 2460.01 (Relatively Moderate, 79.8); tract 1832 (Relatively Moderate, 78.7)
Landslidetract 2167.02 (Relatively Low, 91.1); tract 2167.01 (Relatively Low, 90.7); tract 2568.05 (Relatively Low, 88.7)
Tornadotract 2238.02 (Relatively Moderate, 61.8); tract 2460.01 (Relatively Moderate, 58.7); tract 1243.21 (Relatively Moderate, 58.0)
Wildfiretract 2568.03 (Very Low, 65.3); tract 2568.05 (Very Low, 58.5); tract 2568.02 (Very Low, 51.3)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 2167.02 is Census Tract 2167.02). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

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

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Avalanchenone (count and damage only)0
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)3 records, 1996 to 1997 (3 zone-level)No damage reported in 3 records.Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill4 records, 2000 to 2004 (4 zone-level)1 day to 2 days (median 2 days); 4 with a recorded value2 consecutive days, 2004-01-15 to 2004-01-16, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)11 records, 2001 to 2002 (11 zone-level)123 days to 214 days (median 168.5 days); 2 with a recorded value214 days (7 months), 2002-04-01 to 2002-10-31, a run of 7 consecutive Storm Events drought records, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)34 records, 1968 to 20230.75 in to 1.75 in (median 0.88 in); 34 with a recorded value1.75 in hail, 2002-04-19; same size also recorded on 1968-06-03, 1986-07-29Event records naming jurisdictions in the plan: West Milford township (5 records), Clifton city (3 records), Pompton Lakes borough (2 records), Wayne township (2 records), Bloomingdale borough (1 record), Little Falls township (1 record), Prospect Park borough (1 record), Ringwood borough (1 record), Totowa borough (1 record), Wanaque borough (1 record).
Excessive Heat, Heatheat index (in event narratives)10 records, 1999 to 2025 (10 zone-level)1 day to 4 days (median 3 days); 9 with a recorded value4 consecutive days, 2010-07-04 to 2010-07-07, 1 direct death, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson3 records, 2008 to 2020 (3 zone-level)Strongest recorded: Tropical Storm record, 2020-08-04, $0 property; $0 crops (2020 dollars), 1 direct injury (reported for the zone); NWS zone NJZ004Countywide (zone-level records).Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)4 records, 2000 to 2011 (4 zone-level)No damage reported in 4 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)175 records, 1996 to 2025 (5 zone-level)Flash Flood, 1999-09-16, $6,000,000 property; crops not reported (1999 dollars), 1 direct deathEvent records naming jurisdictions in the plan: Clifton city (25 records), Haledon borough (15 records), Totowa borough (13 records), Passaic city (11 records), Prospect Park borough (7 records), Bloomingdale borough (5 records), Little Falls township (5 records), Wayne township (5 records), Hawthorne borough (3 records), Paterson city (3 records); and 4 more jurisdictions (see the Excel file). Zone-level records (5) 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)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)15 records, 1996 to 2021Lightning, 2007-09-08, $0 property; $0 crops (2007 dollars), 1 direct deathLightning, 2012-08-15, $8,000,000 property; crops not reported (2012 dollars)Event records naming jurisdictions in the plan: Clifton city (2 records), Hawthorne borough (2 records), West Milford township (2 records), Little Falls township (1 record), Passaic city (1 record), Totowa borough (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)31 records, 1996 to 2026 (31 zone-level)34 kt (39 mph) to 70 kt (81 mph) (median 50 kt (58 mph)); 25 with a recorded value70 kt (81 mph) estimated gust, High Wind, 2012-10-29, 3 direct deaths (reported for the zone); NWS zone NJZ004Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)153 records, 1973 to 202643 kt (49 mph) to 78 kt (90 mph) (median 52 kt (60 mph)); 132 with a recorded value78 kt (90 mph) estimated gust, Thunderstorm Wind, 2013-10-07Thunderstorm Wind, 2010-07-23, $25,000 property; crops not reported (2010 dollars)Event records naming jurisdictions in the plan: Clifton city (16 records), Wayne township (14 records), West Milford township (11 records), Prospect Park borough (8 records), Ringwood borough (7 records), Paterson city (6 records), Haledon borough (4 records), Pompton Lakes borough (3 records), Wanaque borough (3 records), Little Falls township (2 records); and 3 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)3 records, 1989 to 1997F/EF0 to F/EF1 (median F/EF1); 3 with a recorded valueF1 tornado, 1989-07-10, 4.5 mi path length (whole path, pre-1996), 100 yd wide, $2,500,000 property; crops not recorded (1989 dollars)Event records naming jurisdictions in the plan: West Milford township (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)114 records, 1996 to 2026 (114 zone-level)No damage reported in 114 records.Countywide (zone-level records).

Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of avalanche, debris flow and lightning.

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

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

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 30 declarations covering 19 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 dollarsNotes
2021-09-052021-09-01DR-4614-NJMajor disasterRemnants of Hurricane IdaHurricane$14,430,589.37
2021-09-022021-09-01EM-3573-NJEmergencyRemnants of Hurricane IdaHurricaneno Public Assistance recordedsame incident as DR-4614
2020-03-252020-01-20DR-4488-NJMajor disasterCOVID-19 PandemicNon-natural, not counted$46,541,941.90
2020-03-132020-01-20EM-3451-NJEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4488
2018-06-082018-03-06DR-4368-NJMajor disasterSevere Winter Storm and SnowstormWinter Weather$1,939,367.38
2012-10-302012-10-26DR-4086-NJMajor disasterHurricane SandyHurricane$6,380,063.34
2012-10-282012-10-26EM-3354-NJEmergencyHurricane SandyHurricaneno Public Assistance recordedsame incident as DR-4086
2011-11-302011-10-29DR-4048-NJMajor disasterSevere StormHazard not mapped (severe storm title names no single hazard); not counted$1,263,112.08
2011-10-142011-09-28DR-4039-NJMajor disasterRemnants of Tropical Storm LeeHurricane$1,469,808.10
2011-08-312011-08-27DR-4021-NJMajor disasterHurricane IreneHurricane$10,105,504.77
2011-08-272011-08-26EM-3332-NJEmergencyHurricane IreneHurricaneno Public Assistance recordedsame incident as DR-4021
2011-02-042010-12-26DR-1954-NJMajor disasterSevere Winter Storm and SnowstormWinter Weather$1,269,240.90
2010-04-022010-03-12DR-1897-NJMajor disasterSevere Storms and FloodingInland Flooding$2,700,802.67
2007-04-262007-04-14DR-1694-NJMajor disasterSevere Storms and Inland and Coastal FloodingCoastal Flooding$1,724,256.35
2005-09-192005-08-29EM-3257-NJEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2005-04-192005-04-01DR-1588-NJMajor disasterSevere Storms and FloodingInland FloodingPA not declared for this county
2003-09-232003-08-14EM-3188-NJEmergencyPower OutageNon-natural, not counted$171,558.33
2003-03-202003-02-16EM-3181-NJEmergencySnowWinter Weather$1,255,421.10
2001-09-192001-09-11EM-3169-NJEmergencyFires and ExplosionsNon-natural, not counted$775,582.96
2000-11-012000-05-30EM-3156-NJEmergencyWest Nile VirusNon-natural, not countedno Public Assistance recorded
1999-09-181999-09-16DR-1295-NJMajor disasterHurricane Floyd Major Disaster DeclarationsHurricane$2,550,822.26
1999-09-171999-09-16EM-3148-NJEmergencyHurricane Floyd Emergency DeclarationsHurricaneno Public Assistance recordedsame incident as DR-1295
1996-01-131996-01-07DR-1088-NJMajor disasterBlizzard of 96 (Severe Snow Storm)Winter Weatherno Public Assistance recorded
1993-03-171993-03-13EM-3106-NJEmergencySevere BlizzardWinter Weatherno Public Assistance recorded
1984-04-121984-03-28DR-701-NJMajor disasterCoastal Storms & FloodingCoastal Floodingno Public Assistance recorded
1980-10-191980-10-19EM-3083-NJEmergencyWater ShortageDroughtno Public Assistance recorded
1975-07-231975-07-23DR-477-NJMajor disasterHeavy Rains, High Winds, Hail & TornadoesInland Flooding (primary); also designated: Hail, Strong Wind, Tornadono Public Assistance recorded
1971-09-041971-09-04DR-310-NJMajor disasterHeavy Rains & FloodingInland Floodingno Public Assistance recorded
1968-06-181968-06-18DR-245-NJMajor disasterHeavy Rains & FloodingInland Floodingno Public Assistance recorded
1965-08-181965-08-18DR-205-NJMajor disasterWater ShortageDroughtno 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
1962-03-091962-03-09DR-124-NJMajor disasterSevere Storm, High Tides & FloodingInland Flooding (primary); also designated: Coastal Flooding
1955-08-201955-08-20DR-41-NJMajor disasterHurricane & FloodsHurricane (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 not placed in any New Jersey county: 1 row, $23,724.37; listed on the New Jersey state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding3000201996 to 2026-06-30
Cold Wave4000001996 to 2026-06-30
Drought11000201996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail34002101955 to 2026-06-30
Heat Wave10011001996 to 2026-06-30
Hurricane3000501996 to 2026-06-30
Ice Storm4000001996 to 2026-06-30
Inland Flooding1751618501996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning15000001996 to 2026-06-30
Strong Wind1843518101955 to 2026-06-30Includes 22 High Wind and 9 Strong Wind records.
Tornado3000101950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather1146519501996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationWhy listed
2021-09-01Flash Flood$0 property; $0 crops (2021 dollars)1, 0CLIFTON to PASSAICdeaths or injuries recorded
2020-08-04Tropical Storm$0 property; $0 crops (zone total, 2020 dollars)0, 1NWS zone NJZ004 (EASTERN PASSAIC), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2017-05-14Thunderstorm Wind43 kt (49 mph) estimated gust$2,000 property; crops not reported (2017 dollars)1, 6PASSAICdeaths or injuries recorded
2013-10-07Thunderstorm Wind78 kt (90 mph) estimated gust$10,000 property; crops not reported (2013 dollars)0, 0NORTH HAWTHORNEB1-c worst recorded: Thunderstorm Wind
2012-10-29High Wind70 kt (81 mph) estimated gust$900,000 property; $0 crops (zone total, 2012 dollars)3, 0NWS zone NJZ004 (EASTERN PASSAIC), zone-leveldeaths or injuries recorded
2010-07-04Excessive Heat$0 property; $0 crops (zone total, 2010 dollars)1, 0NWS zone NJZ004 (EASTERN PASSAIC), zone-levelB1-c worst recorded: Excessive Heat, Heat
2007-09-08Lightning$0 property; $0 crops (2007 dollars)1, 0HEWITTB1-c worst recorded: Lightning
2004-01-15Cold/Wind Chilldamage not reported0, 0NWS zone NJZ002 (WESTERN PASSAIC), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2002-04-19Hail1.75 indamage not reported0, 0WEST MILFORDB1-c worst recorded: Hail
2002-04-01Droughtdamage not reported0, 0NWS zone NJZ002 (WESTERN PASSAIC), zone-levelB1-c worst recorded: Drought
1999-09-16Flash Flood$6,000,000 property; crops not reported (1999 dollars)1, 0COUNTYWIDEB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
1989-07-10TornadoF1, 4.5 mi path length (whole path, pre-1996), 100 yd wide$2,500,000 property; crops not recorded (1989 dollars)0, 0location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (560 rows).

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

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

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

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

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalanche0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01994 to 2023 (30 years)see B1-f0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Coastal Flooding0.012events per year at a location (modeled)about 0.012 per year at a given location in the countyPossibleStorm Events records in 2 of 30 years, 1996 to 2025 (6.67%)not shownmodeledsee B1-f
Cold Wave0.949event-days per yearabout 0.949 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)18.12005-11-12 to 2024-11-12 (19 years)countywide
Drought2.52event-days per yearabout 2.52 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)772000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.002annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.2%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail2.4events per yearabout 2.4 per yearHighly likelyFEMA annualized frequency (modeled)91.1 (modeled)1986 to 2023 (38 years)countywide
Heat Wave7event-days per yearabout 7 days per yearLikelyStorm Events event-days in 8 of 30 years, 1996 to 2025 (26.7%)1082005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0891events per yearabout 1 in 11 yearsPossibleFEMA annualized frequency (modeled)241851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.879event-days per yearabout 0.879 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)601946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding3.5event-days per yearabout 3.5 days per yearHighly likelyStorm Events event-days in 28 of 30 years, 1996 to 2025 (93.3%)981996 to 2023 (28 years)see B1-f
Landslide0.278events per year (modeled)about 1 in 4 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning31.5days per year with a strikeabout 31.5 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind5.58events per yearabout 5.58 per yearHighly likelyFEMA annualized frequency (modeled)2121986 to 2023 (38 years)countywide
Tornado0.0667events per yearabout 1 in 15 yearsPossibleFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.0000825annual probability at a locationchance a given location in the county burns in a year: 0.00825%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather13.1event-days per yearabout 13.1 days per yearHighly likelyStorm Events event-days in 30 of 30 years, 1996 to 2025 (100%)2502005-11-12 to 2024-11-12 (19 years)countywide

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

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

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

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

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 20257300.233
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025120304
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20253300.1
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20256300.2
TornadoEF0-11996 to 20251300.0333
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
Avalanche2 of 1204.64.64.6Very Low 2, Not Applicable 118
Coastal Flooding8 of 12070.174.077.3Relatively Low 1, Very Low 7, No Rating 112
Cold Wave120 of 12015.954.570.3Relatively Moderate 82, Relatively Low 37, Very Low 1
Drought4 of 12076.790.993.0Relatively Moderate 2, Relatively Low 1, Very Low 1, No Rating 116
Earthquake120 of 12033.763.885.8Relatively Moderate 9, Relatively Low 105, Very Low 6
Hail120 of 1201.110.024.1Very Low 120
Heat Wave120 of 1201.861.581.5Relatively Moderate 70, Relatively Low 49, Very Low 1
Hurricane120 of 12048.962.980.5Relatively Moderate 3, Relatively Low 116, Very Low 1
Ice Storm120 of 1200.927.243.1Relatively Low 26, Very Low 94
Inland Flooding120 of 1200.861.599.4Very High 7, Relatively High 33, Relatively Moderate 38, Relatively Low 34, Very Low 8
Landslide117 of 1208.620.591.1Relatively Low 7, Very Low 110, No Rating 3
Lightning120 of 1203.668.487.3Relatively High 24, Relatively Moderate 85, Relatively Low 10, Very Low 1
Strong Wind120 of 12010.179.691.5Relatively High 50, Relatively Moderate 69, Very Low 1
Tornado120 of 1208.043.361.8Relatively Moderate 8, Relatively Low 111, Very Low 1
Wildfire41 of 12018.826.965.3Very Low 41, No Rating 79
Winter Weather120 of 12017.978.189.6Relatively High 57, Relatively Moderate 62, Very Low 1

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

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

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

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

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Passaic CountyCountyApproved, expires 2030-08-06$5,683,250.070 total; 0 since its planNo NFIP community ID on this jurisdiction's plan row. Includes $850,036.74 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3169-NJ, EM-3188-NJ).
Bloomingdale boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 0; any 14$657,994.776 total; 0 since its planIncludes $15,112.85 for declarations not counted as hazard incidents (DR-4048-NJ).
Clifton cityCityApproved, expires 2030-08-06FMA RL 0, SRL 3; any 13$2,998,182.1646 total; 0 since its planIncludes $326,012.53 for declarations not counted as hazard incidents (DR-4048-NJ, DR-4488-NJ, EM-3188-NJ).
Haledon boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 0; any 1$244,706.0319 total; 0 since its planIncludes $17,014.54 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Hawthorne boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 10; any 23$780,715.086 total; 0 since its planIncludes $17,859.36 for declarations not counted as hazard incidents (DR-4048-NJ).
North Haledon boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 0; any 0$1,674,808.281 total; 0 since its planIncludes $51,661.57 for declarations not counted as hazard incidents (DR-4048-NJ, DR-4488-NJ, EM-3188-NJ).
Passaic cityCityApproved, expires 2030-08-06FMA RL 0, SRL 3; any 10$4,447,515.4114 total; 0 since its planIncludes $189,054.05 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Paterson cityCityApproved, expires 2030-08-06FMA RL 0, SRL 48; any 196$7,624,424.879 total; 0 since its planIncludes $219,175.34 for declarations not counted as hazard incidents (DR-4048-NJ, DR-4488-NJ, EM-3188-NJ).
Pompton Lakes boroughBoroughApproved, expires 2030-08-06FMA RL 44, SRL 170; any 319$1,196,845.988 total; 0 since its planIncludes $41,753.18 for declarations not counted as hazard incidents (DR-4488-NJ).
Prospect Park boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 0; any 0$132,785.3316 total; 0 since its planIncludes $5,530.42 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Ringwood boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 0; any 1$1,319,436.259 total; 0 since its planIncludes $131,091.01 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Totowa boroughBoroughApproved, expires 2030-08-06FMA RL 1, SRL 9; any 50$1,223,204.7115 total; 0 since its planIncludes $33,357.77 for declarations not counted as hazard incidents (DR-4048-NJ).
Wanaque boroughBoroughApproved, expires 2030-08-06FMA RL 0, SRL 1; any 8$221,321.835 total; 0 since its planIncludes $52,960.58 for declarations not counted as hazard incidents (DR-4048-NJ).
Woodland Park boroughBoroughApproved, expires 2030-08-06FMA RL 2, SRL 16; any 115$3,015,073.480 total; 0 since its planIncludes $39,555.85 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Little Falls townshipTownshipApproved, expires 2030-08-06FMA RL 32, SRL 148; any 291$1,699,232.959 total; 1 since its planIncludes $72,941.31 for declarations not counted as hazard incidents (DR-4048-NJ, EM-3188-NJ).
Wayne townshipTownshipApproved, expires 2030-08-06FMA RL 143, SRL 449; any 697$5,815,564.0721 total; 0 since its planIncludes $553,673.87 for declarations not counted as hazard incidents (DR-4048-NJ, DR-4488-NJ, EM-3188-NJ).
West Milford townshipTownshipApproved, expires 2030-08-06FMA RL 3, SRL 3; any 13$1,555,400.9320 total; 0 since its planIncludes $51,190.66 for declarations not counted as hazard incidents (DR-4048-NJ).

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 2025-08-07county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$0n/aunder 1$0n/a$14building exposure is 0 in NRI
Coastal Flooding$1,267,543,155n/a4,994$1,375n/a$240.000108%
Cold Wave$83,339,908,571$3,686,528523,705$240$323$6,336,938under 0.0001%
Droughtn/a$3,418,135n/an/a$83,529n/a2.44% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$144,865,811,222n/a524,118$5,864,475n/a$1,781,3890.00405%
Hail$83,374,844,784$3,686,528523,958$14,644$1,565$24,414under 0.0001%
Heat Wave$83,339,908,571$3,686,528523,705under $1$735$5,716,492under 0.0001%
Hurricane$83,324,669,218$3,686,528523,350$3,891,973$15,735$182,5480.00467%
Ice Storm$83,201,081,507n/a522,659$21,605n/a$192,490under 0.0001%
Inland Flooding$83,181,803,589$1,565,42620,941$105,939,863$36,852$5,011,701n/a (see note)$0NRI 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$2,453,693,052n/a13,140$3,448n/a$5390.000141%
Lightning$83,374,844,784n/a523,958$419,237n/a$1,751,5470.000503%
Strong Wind$83,374,844,784$3,686,528523,958$598,705$155$5,096,0340.000718%$4,000$0
Tornado$83,374,844,784$3,686,528523,958$2,109,675$29$2,842,6280.00253%
Wildfire$874,351,099$36,4476,455$3,250under $1$9090.000372%
Winter Weather$83,339,908,571$3,686,528523,705$101,322$1$782,0840.000122%$0

Totals since 2025-08-07 (Storm Events through 2026-06-30): 3 county-coded records, 3 with a damage value recorded (including $0), $4,000; 7 zone-level records, 7 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.

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
Population523,958
Building value (total, not at risk)$83,374,844,784
Agriculture value (total, not at risk)$3,686,528
NRI risk rating (all hazards)Relatively High
Expected annual loss, buildings and agriculture, all hazards$119,108,736
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)$29,719,750
Social vulnerability ratingRelatively High
Community resilience ratingRelatively Low
NRI versionDecember 2025

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

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

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)225Severe repetitive loss, FMA definition (44 CFR 77.2)860
Repetitive loss, NFIP insurance definition1,407Severe repetitive loss, NFIP insurance definition514

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 total2258601,4075141,752317550
of which: Clifton city031321306
of which: Haledon borough0010100
of which: Hawthorne borough0102272304
of which: Little Falls township321482298529147149
of which: Passaic city031031005
of which: Paterson city04819648196051
of which: Ringwood borough0010100
of which: Totowa borough1949950121
of which: Wanaque borough0181802
of which: West Milford township331331303
of which: Woodland Park borough21611516115052
of which: Bloomingdale borough001401405
of which: Wayne township143449476229697221133
of which: Pompton Lakes borough4417025911131948119
of which: Unknown (community ID Unknown in FEMA data)0010100
Statewide, no county in FEMA's file0150610

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 insuredproperties
Bloomingdale borough345284001401405
Clifton city340398031321306
Haledon borough3403990010100
Hawthorne borough3404000102272304
North Haledon borough3404020000000
Passaic city340403031031005
Paterson city34040404819648196051
Pompton Lakes borough3455284417025911131948119
Prospect Park borough3404060000000
Ringwood borough3404070010100
Totowa borough3404081949950121
Wanaque borough3404090181802
Woodland Park borough34041221611516115052
Little Falls township340401321482298529147149
Wayne township345327143449476229697221133
West Milford township340411331331303

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 residential2197621,1184241,457311462
2 to 4 unit residential54414940153444
other residential0242401
non-residential15213648138243
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 104 properties are FMA repetitive loss but not NFIP repetitive loss, and 1,286 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 (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each 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). Passaic County, NJ: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 34031). Automated baseline. https://hazardplain.org/nj/34031/ 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]