Hazard Plain Automated baseline

New York County, NY

Risk-assessment baseline packet

County FIPS:
36061
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 2029-05-27. Plan: New York City 2024 (FEMA plan 109731), approved 2024-05-28.

Since the plan was approved on 2024-05-28: 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 ($187,042,303 a year), Heat Wave ($40,526,345) and Hurricane ($23,166,979).

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 2029-05-27
Plan:
New York City 2024 (FEMA plan 109731)
Approved:
2024-05-28
Days to expiry:
970

Plan clock from the New York City government plan (New York city); the five boroughs share it. FEMA plan data has no county-level row for this borough.

What changed since your last plan (approved 2024-05-28)

New federal declarations:
none
Storm Events records since approval:
10 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 0, SRL 4 (44 CFR 77.2); any definition: 61
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 expiry
New York cityCityApproved, expires 2029-05-27New York City 2024 (FEMA plan 109731)2024-05-282029-05-27970

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
1Inland FloodingVery HighRelatively High$185,506,308$250$1,535,745$187,042,30374
2Heat WaveRelatively HighRelatively High$139$11$40,526,195$40,526,34514
3HurricaneRelatively HighRelatively High$22,266,502$418$900,058$23,166,9793
4EarthquakeRelatively ModerateRelatively Moderate$13,597,989n/a$6,150,055$19,748,043Storm Events does not record earthquakes.
5Cold WaveRelatively HighVery High$1,136$1$18,485,882$18,487,0195
6Strong WindVery HighVery High$384,652$1$7,359,757$7,744,41082Includes 25 High Wind and 18 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
7TornadoRelatively ModerateRelatively Moderate$2,648,405under $1$1,751,891$4,400,2970No recorded events in Storm Events since 1996 (data through 2026-06-30).
8HailRelatively ModerateRelatively Moderate$1,511,162$13$40,751$1,551,92610
9Coastal FloodingRelatively ModerateRelatively Moderate$984,345n/a$231,737$1,216,08210
10Winter WeatherVery HighVery High$151,555under $1$1,051,227$1,202,78274
11LightningRelatively HighRelatively High$13,741n/a$1,038,284$1,052,0256
12Ice StormRelatively HighRelatively High$212,522n/a$315,232$527,7541
13WildfireVery LowVery Low$1,423under $1$585$2,0070No recorded events in Storm Events since 1996 (data through 2026-06-30).
14LandslideVery LowVery Low$129n/a$19$1480No recorded events in Storm Events since 1996 (data through 2026-06-30).
15DroughtNo RatingNo Expected Annual Lossesn/a$0n/a$08
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No 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, landslide and tsunami 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 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
Earthquaketract 37 (Relatively Moderate, 87.7); tract 120 (Relatively Moderate, 86.1); tract 64 (Relatively Moderate, 85.6)
Hurricanetract 37 (Relatively High, 92.9); tract 203 (Relatively High, 90.3); tract 55.01 (Relatively Moderate, 89.2)
Landslidetract 275 (Very Low, 78.0); tract 283 (Very Low, 69.7); tract 281 (Very Low, 62.6)
Tornadotract 37 (Relatively Moderate, 56.7); tract 203 (Relatively Low, 50.9); tract 64 (Relatively Low, 49.2)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 243.02 (Relatively Low, 70.9); tract 287 (Very Low, 64.1); tract 159 (Very Low, 56.0)

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 37 is Census Tract 37). 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)10 records, 1996 to 2012 (10 zone-level)Coastal Flood, 1996-10-19, $2,500,000 property; crops not reported (1996 dollars); NWS zone NYZ072 (NEW YORK (MANHATTAN))Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill5 records, 2000 to 2007 (5 zone-level)1 day to 5 days (median 2 days); 5 with a recorded value5 consecutive days, 2007-02-04 to 2007-02-08, 1 direct death, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)8 records, 2002 (8 zone-level)31 days to 214 days (median 122.5 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)12 records, 1985 to 20210.75 in to 1.5 in (median 0.88 in); 12 with a recorded value1.5 in hail, 1998-05-20Event records naming jurisdictions in the plan: New York city (6 records).
Excessive Heat, Heatheat index (in event narratives)14 records, 1999 to 2019 (14 zone-level)1 day to 4 days (median 3 days); 11 with a recorded value4 consecutive days, 2010-07-04 to 2010-07-07, 2 direct deaths, 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, $4,500,000 property; $0 crops (2020 dollars); NWS zone NYZ072 (NEW YORK (MANHATTAN))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.
Ice StormSperry-Piltz ice scale (local data)1 record, 2011 (1 zone-level)No damage reported in 1 record.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)74 records, 1996 to 2025 (3 zone-level)Flash Flood, 2021-09-01, $60,000,000 property; $0 crops (2021 dollars)Event records naming jurisdictions in the plan: New York city (23 records). Zone-level records (3) 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)6 records, 2002 to 2025Lightning, 2002-08-02, damage not reported, 1 direct death, 1 direct injuryLightning, 2011-04-17, $10,000 property; crops not reported (2011 dollars)Event records naming jurisdictions in the plan: New York city (2 records).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)43 records, 1996 to 2024 (42 zone-level)30 kt (35 mph) to 54 kt (62 mph) (median 50 kt (58 mph)); 33 with a recorded value54 kt (62 mph) measured gust, High Wind, 2012-10-29, 1 direct death (reported for the zone); NWS zone NYZ072 (NEW YORK (MANHATTAN))No event record names a jurisdiction in the plan. Zone-level records (42) apply countywide.
Thunderstorm Windwind speed (kt and mph)46 records, 1979 to 202650 kt (58 mph) to 70 kt (81 mph) (median 52 kt (60 mph)); 42 with a recorded value70 kt (81 mph) estimated gust, Thunderstorm Wind, 2018-05-15; same speed and measurement basis also recorded on 2008-06-10, 2009-08-18Thunderstorm Wind, 2009-08-18, $300,000 property; crops not reported (2009 dollars)Event records naming jurisdictions in the plan: New York city (17 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)1 record, 1995F/EF0; 1 with a recorded valueF0 tornado, 1995-08-31, 0.1 mi path length (whole path, pre-1996), 10 yd wide, $30,000 property; crops not recorded (1995 dollars), 1 direct injuryNo event record names a jurisdiction in the plan.Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Tsunaminone (count and damage only)0
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)74 records, 1996 to 2026 (74 zone-level)Heavy Snow, 2003-02-17, $20,000,000 property; crops not reported (2003 dollars); NWS zone NYZ072 (NEW YORK (MANHATTAN))Countywide (zone-level records).

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

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: 23 declarations covering 12 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-4615-NYMajor disasterRemnants of Hurricane IdaHurricane$521,260,431.97
2021-09-022021-09-01EM-3572-NYEmergencyRemnants of Hurricane IdaHurricaneno Public Assistance recordedsame incident as DR-4615
2021-08-222021-08-21EM-3565-NYEmergencyHurricane HenriHurricaneno Public Assistance recorded
2020-03-202020-01-20DR-4480-NYMajor disasterCOVID-19 PandemicNon-natural, not counted$9,635,949,286.34
2020-03-132020-01-20EM-3434-NYEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4480
2012-10-302012-10-27DR-4085-NYMajor disasterHurricane SandyHurricane$4,557,461,948.45
2012-10-282012-10-27EM-3351-NYEmergencyHurricane SandyHurricaneno Public Assistance recordedsame incident as DR-4085
2011-08-312011-08-26DR-4020-NYMajor disasterHurricane IreneHurricane$6,085,117.09
2011-08-262011-08-25EM-3328-NYEmergencyHurricane IreneHurricane$1,552.40same incident as DR-4020
2005-09-302005-08-29EM-3262-NYEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not counted$2,244,668.36
2004-08-032004-05-13DR-1534-NYMajor disasterSevere Storms and FloodingInland Flooding: designated for Hazard Mitigation only (no Public or Individual Assistance for this county); not countedPA not declared for this county
2003-08-232003-08-14EM-3186-NYEmergencyPower OutageNon-natural, not counted$597,392.60
2003-03-272003-02-17EM-3184-NYEmergencySnowWinter Weather$65,210.32
2001-09-112001-09-11DR-1391-NYMajor disasterFires and ExplosionsNon-natural, not counted$1,111,433,157
2000-10-112000-05-22EM-3155-NYEmergencyWest Nile VirusNon-natural, not countedno Public Assistance recorded
1996-11-191996-10-19DR-1146-NYMajor disasterSevere Storms, Flooding, Heavy Rains, High WindsInland Flooding; Strong WindPA not declared for this county
1996-01-121996-01-06DR-1083-NYMajor disasterBlizzard of 96 (Severe Snow Storm)Winter Weatherno Public Assistance recorded
1993-04-021993-02-26DR-984-NYMajor disasterExplosion at World Trade CenterNon-natural, not countedno Public Assistance recorded
1993-03-171993-03-13EM-3107-NYEmergencySevere BlizzardWinter Weatherno Public Assistance recorded
1992-12-211992-12-10DR-974-NYMajor disasterCoastal Storm, High Tides, Heavy Rain, & FloodingCoastal Floodingno Public Assistance recorded
1984-04-171984-03-28DR-702-NYMajor disasterCoastal Storms & FloodingCoastal Floodingno Public Assistance recorded
1971-09-131971-09-13DR-311-NYMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1965-08-181965-08-18DR-204-NYMajor 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
1963-08-231963-08-23DR-158-NYMajor disasterHeavy Rains & FloodingInland Flooding
1962-03-161962-03-16DR-129-NYMajor disasterSevere Storm, High Tides & FloodingInland Flooding (primary); also designated: Coastal Flooding
1956-03-291956-03-29DR-52-NYMajor disasterFloodInland Flooding
1955-08-221955-08-22DR-45-NYMajor disasterHurricane & FloodsHurricane (primary); also designated: Inland Flooding
1954-10-071954-10-07DR-26-NYMajor disasterHurricanesHurricane (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.

1 Fire Management declaration (1995-08-25 to 1995-08-25) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance filed under this county for declarations that do not list it: 22 rows, $25,741,124.39

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4755-NY2024-01-30Severe Storm and FloodingNew York and Presbyterian Hospital$429,932.72
DR-4755-NY2024-01-30Severe Storm and FloodingCity of New York - Management and Budget$1,412,624.38
DR-4567-NY2020-10-02Tropical Storm IsaiasCity of New York - Management and Budget$21,537,525.60
DR-4472-NY2019-12-19Severe Storms, Straight-Line Winds, and FloodingTurin, Town of$32,325.41
DR-4322-NY2017-07-12Severe Winter Storm and SnowstormChateaugay, Town of$14,192.51
DR-4204-NY2014-12-22Severe Winter Storm, Snowstorm, and FloodingTurin, Town of$4,429.63
DR-4129-NY2013-07-12Severe Storms and FloodingChateaugay, Town of$12,816.23
DR-1993-NY2011-06-10Severe Storms, Flooding, Tornadoes, and Straight-Line WindsTurin, Town of$14,090.70
DR-1993-NY2011-06-10Severe Storms, Flooding, Tornadoes, and Straight-Line WindsChateaugay, Town of$36,654.38
DR-1957-NY2011-02-18Severe Winter Storm and SnowstormUnited Cerebral Palsy of NYS, Inc. DBA /Constructive Partnerships Unlimited$14,613.87
DR-1957-NY2011-02-18Severe Winter Storm and SnowstormNew York City Housing Authority$622,685.34
DR-1957-NY2011-02-18Severe Winter Storm and SnowstormNew York City Health and Hospitals Corporation$141,697.32
DR-1957-NY2011-02-18Severe Winter Storm and SnowstormNew York / City University of New York (CUNY)$31,662.28
DR-1957-NY2011-02-18Severe Winter Storm and SnowstormCity of New York - Office of Emergency Management$9,373.07
DR-1943-NY2010-10-14Severe Storms, Tornadoes, and Straight-Line WindsNew York City Housing Authority$821,960.15
DR-1943-NY2010-10-14Severe Storms, Tornadoes, and Straight-Line WindsNew York City Health and Hospitals Corporation$8,725.37
DR-1943-NY2010-10-14Severe Storms, Tornadoes, and Straight-Line WindsNew York / City University of New York (CUNY)$439,333.52
DR-1943-NY2010-10-14Severe Storms, Tornadoes, and Straight-Line WindsCity of New York - Office of Emergency Management$144,624.47
EM-3273-NY2007-02-23Record Snow and Near Record SnowTurin, Town of$3,708.02
EM-3195-NY2004-03-03SnowTurin, Town of$3,139.37
DR-1335-NY2000-07-21Severe Storms and FloodingTurin, Town of$2,008.89
EM-3136-NY1999-01-15SnowTurin, Town of$3,001.16

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 Flooding10000201996 to 2026-06-30
Cold Wave5000001996 to 2026-06-30
Drought8000101996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail12002001955 to 2026-06-30
Heat Wave14000001996 to 2026-06-30
Hurricane3000401996 to 2026-06-30
Ice Storm1000001996 to 2026-06-30
Inland Flooding74102201996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning6112001996 to 2026-06-30
Strong Wind89359101955 to 2026-06-30Includes 25 High Wind and 18 Strong Wind records.
Tornado1000001950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather745211301996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationWhy listed
2021-09-01Flash Flood$60,000,000 property; $0 crops (2021 dollars)0, 0CENTRAL PARK to NEW YORKB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2020-08-04Tropical Storm$4,500,000 property; $0 crops (zone total, 2020 dollars)0, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2018-05-15Thunderstorm Wind70 kt (81 mph) estimated gustproperty not reported; $0 crops (2018 dollars)0, 0CENTRAL PARKB1-c worst recorded: Thunderstorm Wind
2012-10-29High Wind54 kt (62 mph) measured gust$1,000,000 property; $0 crops (zone total, 2012 dollars)1, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-levelB1-c worst recorded: High Wind and Strong Wind
2011-07-21Excessive Heat$0 property; $0 crops (zone total, 2011 dollars)4, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-leveldeaths or injuries recorded
2010-07-04Excessive Heat$0 property; $0 crops (zone total, 2010 dollars)2, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-levelB1-c worst recorded: Excessive Heat, Heat
2007-02-04Extreme Cold/Wind Chill$0 property; $0 crops (zone total, 2007 dollars)1, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2006-08-01Heatdamage not reported9, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-leveldeaths or injuries recorded
1999-07-04Heatdamage not reported13, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-leveldeaths or injuries recorded
1998-05-20Hail1.5 indamage not reported0, 0NEW YORKB1-c worst recorded: Hail
1996-10-19Coastal Flood$2,500,000 property; crops not reported (zone total, 1996 dollars)0, 0NWS zone NYZ072 (NEW YORK (MANHATTAN)), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
1995-08-31TornadoF0, 0.1 mi path length (whole path, pre-1996), 10 yd wide$30,000 property; crops not recorded (1995 dollars)0, 1location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (297 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
Coastal Flooding3.76events per year at a location (modeled)about 3.8 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave0.498event-days per yearabout 0.498 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)8.322005-11-12 to 2024-11-12 (19 years)countywide
Drought1.47event-days per yearabout 1.47 days per yearPossibleStorm Events event-days in 1 of 30 years, 1996 to 2025 (3.33%)702000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00194annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.194%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.89events per yearabout 1.89 per yearHighly likelyFEMA annualized frequency (modeled)91.2 (modeled)1986 to 2023 (38 years)countywide
Heat Wave10.2event-days per yearabout 10.2 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)1462005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.155events per yearabout 1 in 6 yearsLikelyFEMA annualized frequency (modeled)301851 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 Storm0.744event-days per yearabout 0.744 days per yearPossibleStorm Events event-days in 1 of 30 years, 1996 to 2025 (3.33%)501946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding2event-days per yearabout 2 days per yearLikelyStorm Events event-days in 22 of 30 years, 1996 to 2025 (73.3%)561996 to 2023 (28 years)see B1-f
Landslide0.00679events per year (modeled)about 1 in 147 yearsUnlikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning31.7days per year with a strikeabout 31.7 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind5.39events per yearabout 5.39 per yearHighly likelyFEMA annualized frequency (modeled)2051986 to 2023 (38 years)countywide
Tornado0.0106events per yearabout 1 in 94 yearsPossibleFEMA 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)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Wildfire0.000067annual probability at a locationchance a given location in the county burns in a year: 0.0067%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 Weather9.29event-days per yearabout 9.29 days per yearLikelyStorm Events event-days in 26 of 30 years, 1996 to 2025 (86.7%)1542005-11-12 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 20253300.1
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202534301.13
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20254300.133
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20250300
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 Flooding107 of 31068.984.395.8Relatively High 1, Relatively Moderate 24, Relatively Low 57, Very Low 25, No Rating 203
Cold Wave310 of 31015.559.085.2Relatively High 20, Relatively Moderate 210, Relatively Low 71, Very Low 9
Drought0 of 310No Rating 310
Earthquake310 of 3109.464.787.7Relatively Moderate 32, Relatively Low 250, Very Low 28
Hail310 of 3102.745.182.7Relatively Moderate 5, Relatively Low 238, Very Low 67
Heat Wave310 of 3101.387.896.8Very High 1, Relatively High 184, Relatively Moderate 97, Relatively Low 17, Very Low 11
Hurricane310 of 31039.075.292.9Relatively High 2, Relatively Moderate 77, Relatively Low 226, Very Low 5
Ice Storm310 of 3100.327.061.6Relatively Low 93, Very Low 217
Inland Flooding310 of 3100.346.8100.0Very High 8, Relatively High 46, Relatively Moderate 95, Relatively Low 110, Very Low 51
Landslide172 of 3108.721.778.0Very Low 172, No Rating 138
Lightning310 of 3100.123.852.7Relatively Moderate 3, Relatively Low 178, Very Low 129
Strong Wind310 of 3100.466.389.5Relatively High 23, Relatively Moderate 203, Relatively Low 74, Very Low 10
Tornado310 of 3101.529.356.7Relatively Moderate 1, Relatively Low 146, Very Low 163
Tsunami0 of 310Insufficient Data 310
Wildfire11 of 31018.722.670.9Relatively Low 1, Very Low 10, No Rating 299
Winter Weather310 of 31011.064.287.5Relatively High 31, Relatively Moderate 227, Relatively Low 46, Very Low 6

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, 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.

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
New York cityCityApproved, expires 2029-05-27FMA RL 56, SRL 206; any 4,511no Public Assistance recorded48 total; 1 since its planWhole community, including the part in Bronx County, Dutchess County, Kings County, Nassau County, Queens County, Rensselaer County, Richmond County, Rockland County, Suffolk County and Westchester County, plus 7 properties with no county in FEMA's file; in-county portion (county table): FMA RL 0, FMA SRL 3, NFIP RL 59, NFIP SRL 2, any category 59.

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 2024-05-28county-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$23,612,120,851n/a170,409$984,345n/a$231,7370.00417%
Cold Wave$292,061,968,506$61,2991,693,650$1,136$1$18,485,882under 0.0001%
Droughtn/a$0n/an/a$0n/aagriculture exposure is 0 in NRI
Earthquake$511,955,301,934n/a1,694,251$13,597,989n/a$6,150,0550.00266%
Hail$292,061,968,506$61,2991,693,650$1,511,162$13$40,7510.000517%
Heat Wave$292,061,968,506$61,2991,693,650$139$11$40,526,195under 0.0001%
Hurricane$291,820,905,452$61,2991,692,178$22,266,502$418$900,0580.00763%
Ice Storm$292,061,968,506n/a1,693,650$212,522n/a$315,232under 0.0001%
Inland Flooding$291,952,808,989$16,30086,056$185,506,308$250$1,535,745n/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$1,743,547,710n/a12,877$129n/a$19under 0.0001%
Lightning$292,061,968,506n/a1,693,650$13,741n/a$1,038,284under 0.0001%$0
Strong Wind$292,061,968,506$61,2991,693,650$384,652$1$7,359,7570.000132%$21,500
Tornado$292,061,968,506$61,2991,693,650$2,648,405under $1$1,751,8910.000907%
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$292,350,572$194,291$1,423under $1$5850.000487%
Winter Weather$292,061,968,506$61,2991,693,650$151,555under $1$1,051,227under 0.0001%$0

Totals since 2024-05-28 (Storm Events through 2026-06-30): 5 county-coded records, 5 with a damage value recorded (including $0), $21,500; 5 zone-level records, 5 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
Population1,693,650
Building value (total, not at risk)$292,061,968,506
Agriculture value (total, not at risk)$61,299
NRI risk rating (all hazards)Relatively High
Expected annual loss, buildings and agriculture, all hazards$227,280,702
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)$79,387,418
Social vulnerability ratingVery High
Community resilience ratingRelatively High
NRI versionDecember 2025

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

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

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)0Severe repetitive loss, FMA definition (44 CFR 77.2)4
Repetitive loss, NFIP insurance definition60Severe repetitive loss, NFIP insurance definition2

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 total0460261130
of which: New York city0359259030
of which: Unknown (community ID Unknown in FEMA data)0110210
Statewide, no county in FEMA's file001901903

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
New York city360497562064,4831684,51161,692Whole community, including the part in Bronx County, Dutchess County, Kings County, Nassau County, Queens County, Rensselaer County, Richmond County, Rockland County, Suffolk County and Westchester County, plus 7 properties with no county in FEMA's file; in-county portion (county table): FMA RL 0, FMA SRL 3, NFIP RL 59, NFIP SRL 2, any category 59.

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 residential0060601
2 to 4 unit residential0010101
other residential0240140025
non-residential021311413
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 60 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). New York County, NY: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 36061). Automated baseline. https://hazardplain.org/ny/36061/ 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]