Hazard Plain Preview: automated baseline

Schenectady County, NY

Risk-assessment baseline packet

Unit
County area 36093
Release
2026-10
As of
2026-09-28
Storm Events data through
2026-06-30

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

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

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

Plan clock

Status
Approved, expires 2027-02-07
Plan
Schenectady County 2022 (FEMA plan 107976)
Approved
2022-02-08
Expires
2027-02-07
As of
2026-09-28
Days
132 days to expiry
Update underway
none in FEMA's plan tracker

What changed since your last plan (approved 2022-02-08)

New federal declarations
none (0 declaration rows; 0 counted incidents)
Storm Events records since approval
132 (data through 2026-06-30)
Repetitive loss now
FMA RL 1, SRL 7 (44 CFR 77.2); any definition: 42
Repeat-flood change
First release: no prior release to compare.

Sources

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

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

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

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

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Schenectady CountyCountyApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-03-11
Delanson villageVillageApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-02-18
Schenectady cityCityApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-03-18
Scotia villageVillageApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-02-11
Duanesburg townTownApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-02-23
Glenville townTownApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132
Niskayuna townTownApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-04-15
Princetown townTownApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-03-10
Rotterdam townTownApproved, expires 2027-02-07Schenectady County 2022 (FEMA plan 107976)2022-02-082027-02-07132member approved 2022-03-01

Source

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

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

Supports B1-a: hazards

Hazards NRI does not cover: check locally

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

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

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$23,767,669$10,439$508,635$24,286,74389
2TornadoRelatively ModerateRelatively Moderate$620,924$75$2,183,505$2,804,5054
3HurricaneRelatively LowRelatively Low$1,134,068$7,356$68,234$1,209,6581
4Cold WaveRelatively LowRelatively Low$411$1,595$909,907$911,91274Includes 26 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
5EarthquakeRelatively LowRelatively Low$599,040$130,364$729,403Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
6LightningRelatively ModerateRelatively Moderate$21,666$590,258$611,92310
7Strong WindRelatively LowRelatively Moderate$119,748$601$447,080$567,429291Includes 33 High Wind records and 57 Strong Wind records, event types the NRI definition of this hazard leaves out.
8Heat WaveRelatively LowRelatively Low$1$634$557,634$558,26957
9Ice StormRelatively ModerateRelatively Moderate$304,181$41,265$345,4474
10HailRelatively LowRelatively Low$13,318$3,557$246,025$262,89963
11Winter WeatherRelatively LowRelatively Low$44,712$1$19,091$63,804221
12WildfireVery LowVery Low$8,150under $1$1,056$9,2062
13LandslideVery LowVery Low$78$377$4550No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
14DroughtNo RatingNo Expected Annual Losses$0$02
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

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

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

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

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 45
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 45
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.0 of 45
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.45 of 45
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.45 of 45
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
Inland FloodingThe FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.45 of 45
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.45 of 45
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.45 of 45
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 45
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 45
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.45 of 45
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.45 of 45

Source

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

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill48, 1996 to 2026 (48 zone-level)1 day to 4 days (median 2 days); 36 with a recorded value4 consecutive days, 2026-01-29 to 2026-02-01, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required. Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run.
Frost/Freeze (outside NRI Cold Wave definition)crop damage26, 2002 to 2023 (26 zone-level)No crop damage reported in 26 records.Zone-level records: applies countywide; national data do not locate these events within the county.Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale2, 1999 to 1999 (2 zone-level)30 days to 31 days (median 30.5 days); 2 with a recorded value31 days (1 month), 1999-08-01 to 1999-08-31, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)73, 1973 to 20250.75 in to 3 in (median 1 in); 73 with a recorded value3 in hail, 2014-05-22Hail, 2001-05-28, $10,000 property; crops not reported (2001 dollars)Event records naming member places: Schenectady city (15 records), Niskayuna town (8 records), Rotterdam town (6 records), Glenville town (4 records), Duanesburg town (3 records), Scotia village (2 records), Delanson village (1 record).
Excessive Heat, Heatheat index (narratives)57, 1998 to 2025 (57 zone-level)1 day to 6 days (median 2 days); 40 with a recorded value6 consecutive days, 2018-06-30 to 2018-07-05, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required. Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson1, 2011 to 2011 (1 zone-level)Strongest recorded (records with damage, a wind speed or direct casualties first, then storm type, category and wind): Tropical Storm record, 2011-08-28, $0 property; $0 crops, reported for the zone (2011 dollars); NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)4, 2007 to 2019 (4 zone-level)No damage reported in 4 records.Zone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)89, 1996 to 2026 (15 zone-level)Flood, 1996-01-19, $3,000,000 property; crops not reported, reported for the zone (1996 dollars); NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesFlood, 1996-01-19, $3,000,000 property; crops not reported, reported for the zone (1996 dollars)Event records naming member places: Schenectady city (23 records), Scotia village (9 records), Glenville town (4 records), Rotterdam town (4 records), Niskayuna town (3 records), Delanson village (1 record). Zone-level records (15) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)10, 1998 to 2021Lightning, 2015-05-27, $75,000 property; $0 crops (2015 dollars)Event records naming member places: Duanesburg town (2 records), Schenectady city (2 records), Niskayuna town (1 record), Rotterdam town (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)90, 1996 to 2026 (90 zone-level)32 kt (37 mph) to 65 kt (75 mph) (median 45 kt (52 mph)); 80 with a recorded value65 kt (75 mph) estimated gust, High Wind, 2006-02-17; NWS zone NYZ049 (EASTERN SCHENECTADY), zone-level: may include parts of neighboring countiesHigh Wind, 1997-03-06, $4,000,000 property; crops not reported, reported for the zone (1997 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)251, 1981 to 202640 kt (46 mph) to 100 kt (115 mph) (median 50 kt (58 mph)); 179 with a recorded value100 kt (115 mph) estimated, Thunderstorm Wind, 2000-06-02Thunderstorm Wind, 2016-07-01, $203,000 property; crops not reported (2016 dollars)Event records naming member places: Schenectady city (47 records), Scotia village (23 records), Glenville town (18 records), Rotterdam town (15 records), Niskayuna town (14 records), Duanesburg town (9 records), Delanson village (4 records).
TornadoEnhanced Fujita (F before Feb 2007)6, 1960 to 2015F/EF0 to F/EF3 (median between F/EF1 and F/EF2); 6 with a recorded valueF3 tornado, 1960-06-24, 10.9 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 440 yd wide, $25,000,000 property; crops not recorded (1960 dollars), 9 direct injuriesEvent records naming member places: Glenville town (1 record), Schenectady city (1 record), Scotia village (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)2, 2001 to 2002 (1 zone-level)Wildfire, 2001-04-18, $5,000 property; crops not reported (2001 dollars)Event records naming member places: Glenville town (1 record). Zone-level records (1) apply countywide.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)221, 1996 to 2026 (221 zone-level)Winter Storm, 1997-03-31, $250,000 property; crops not reported, reported for the zone (1997 dollars); NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

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

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

Sources

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

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

Supports B1-d: previous occurrences

Declaration rows
25
Counted incidents
16

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2021-08-222021-08-21EM-3565-NYEmergencyHURRICANE HENRIHurricanenone foundduring plan review, check whether your last plan included it
2020-03-202020-01-20DR-4480-NYMajor disasterCOVID-19 PANDEMICNon-natural, not counted$40,169,800.50
2020-03-132020-01-20EM-3434-NYEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4480
2017-07-122017-03-14DR-4322-NYMajor disasterSEVERE WINTER STORM AND SNOWSTORMWinter Weather$415,031.49
2012-10-282012-10-27EM-3351-NYEmergencyHURRICANE SANDYHurricanenone found
2011-09-132011-09-07DR-4031-NYMajor disasterREMNANTS OF TROPICAL STORM LEEHurricanenone found
2011-09-082011-09-07EM-3341-NYEmergencyREMNANTS OF TROPICAL STORM LEEHurricanenone foundsame incident as DR-4031
2011-08-312011-08-26DR-4020-NYMajor disasterHURRICANE IRENEHurricane$4,461,845.63
2009-03-042008-12-11DR-1827-NYMajor disasterSEVERE WINTER STORMWinter Weather$868,871.52
2008-12-182008-12-11EM-3299-NYEmergencySEVERE WINTER STORMWinter Weather$2,007,816.21same incident as DR-1827
2006-07-012006-06-26DR-1650-NYMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$328,867.94
2005-09-302005-08-29EM-3262-NYEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2005-04-192005-04-02DR-1589-NYMajor disasterSEVERE STORMS AND FLOODINGInland FloodingPA not declared for this county
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$11,312.62
2003-05-122003-04-03DR-1467-NYMajor disasterICE STORMIce Storm$584,548.88
2003-03-272003-02-17EM-3184-NYEmergencySNOWWinter Weather$189,392.42
2003-02-252002-12-25EM-3173-NYEmergencySNOWSTORMSWinter Weather$777,142.64
2001-09-112001-09-11DR-1391-NYMajor disasterFIRES AND EXPLOSIONSNon-natural, not counted$27,837.91
2000-10-112000-05-22EM-3155-NYEmergencyWEST NILE VIRUSNon-natural, not countednone found
2000-07-212000-05-03DR-1335-NYMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$522,605.90
1999-09-191999-09-16DR-1296-NYMajor disasterHURRICANE FLOYD MAJOR DISASTER DECLARATIONSHurricane$25,950FEMA's declaration record does not list Public Assistance, but FEMA's PA project summaries show obligations for this county
1996-01-241996-01-19DR-1095-NYMajor disasterSEVERE STORMS AND FLOODINGInland Floodingnone found
1993-03-171993-03-13EM-3107-NYEmergencySEVERE BLIZZARDWinter Weathernone found
1987-11-101987-10-04DR-801-NYMajor disasterSEVERE WINTER STORMWinter Weathernone found

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

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

Statewide declarations

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

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.

Source

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

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave7411515001996 to 2026-06-30Includes 26 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
Drought2000001996 to 2026-06-30
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail73202001955 to 2026-06-30
Heat Wave5722322001996 to 2026-06-30
Hurricane1000501996 to 2026-06-30
Ice Storm4000101996 to 2026-06-30
Inland Flooding8912113401996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning10010001996 to 2026-06-30
Strong Wind341421245001955 to 2026-06-30Includes 33 High Wind records and 57 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado6000001950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire2000001996 to 2026-06-30
Winter Weather22143850601996 to 2026-06-30

Sources

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

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

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

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2026-01-29Cold/Wind Chilldamage not reported0, 0NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesnew since last plan; within last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2018-06-30Heatdamage not reported0, 0NWS zone NYZ049 (EASTERN SCHENECTADY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2015-05-27Lightning$75,000 property; $0 crops (2015 dollars)0, 0SCHENECTADYB1-c worst recorded: Lightning
2014-07-02Lightning$0 property; $0 crops (2014 dollars)0, 3CARMANdeaths or injuries recorded
2014-05-22Hail3 indamage not reported0, 0DUANESBURGB1-c worst recorded: Hail
2011-08-28Tropical Storm$0 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2006-02-17High Wind65 kt (75 mph) estimated gustdamage not reported0, 0NWS zone NYZ049 (EASTERN SCHENECTADY), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
2000-06-02Thunderstorm Wind100 kt (115 mph) estimated$110,000 property; crops not reported (2000 dollars)0, 0SCHENECTADYB1-c worst recorded: Thunderstorm Wind
1998-06-26Lightningdamage not reported0, 3DUANESBURGdeaths or injuries recorded
1997-03-31Winter Storm$250,000 property; crops not reported, reported for the zone (1997 dollars)0, 0NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1996-01-19Flood$3,000,000 property; crops not reported, reported for the zone (1996 dollars)0, 0NWS zone NYZ048 (WESTERN SCHENECTADY), zone-level: may include parts of neighboring countiesB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
1960-06-24TornadoF3, 10.9 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 440 yd wide$25,000,000 property; crops not recorded (1960 dollars)0, 9location not recordeddeaths or injuries recorded

The full list is in the XLSX file, sheet "B1-d Storm Events history" (880 rows).

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

Sources

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

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

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

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

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

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave2.55event-days per yearabout 2.55 days per yearLikelyevent-days in 16 of 30 years, 1996 to 2025 (53.3%)48.32005-11-12 to 2024-11-12 (19 years)countywideFrost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought0event-days per yearnone modeledPossibleevent-days in 1 of 30 years, 1996 to 2025 (3.33%)02000 to 2025 (25.25 years; D3 and D4 only)countywideNRI models no drought event-days here (2000 to 2025, 25.25 years; D3 and D4 only), but Storm Events has a record in 1 of 30 years. The descriptor comes from Storm Events, which records events NRI's definition leaves out, so the two use different thresholds; read them together.
Earthquake0.00137annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.136%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail2.52events per yearabout 2.52 per yearHighly likelyFEMA annualized frequency (modeled)95.9 (modeled)1986 to 2023 (38 years)countywide
Heat Wave3.3event-days per yearabout 3.3 days per yearLikelyevent-days in 17 of 30 years, 1996 to 2025 (56.7%)56.52005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0423events per yearabout 1 in 24 yearsPossibleFEMA annualized frequency (modeled)121851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm0.696event-days per yearabout 0.696 days per yearLikelyevent-days in 3 of 30 years, 1996 to 2025 (10%)471946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding1.96event-days per yearabout 1.96 days per yearLikelyevent-days in 22 of 30 years, 1996 to 2025 (73.3%)551996 to 2023 (28 years)see B1-f
Landslide0.0947events per year (modeled)about 1 in 11 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning26.4days per year with a strikeabout 26.4 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind1.3events per yearabout 1.3 per yearHighly likelyFEMA annualized frequency (modeled)501986 to 2023 (38 years)countywide
Tornado0.0423events per yearabout 1 in 24 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)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.0000285annual probability at a locationchance a given location in the county burns in a year: 0.00285%PossibleStorm Events records in 2 of 30 years, 1996 to 2025 (6.67%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI: the NRI value is the chance at a location in the county, not how often the hazard affects the county.
Winter Weather17.2event-days per yearabout 17.2 days per yearHighly likelyevent-days in 30 of 30 years, 1996 to 2025 (100%)3262005-11-12 to 2024-11-12 (19 years)countywide

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

Sources

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

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

Descriptor scale used in this packet (defined per unit)

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

Sources

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

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

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202535301.17
Hail2.00 in+1996 to 20252300.0667
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 2025165305.5
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20254300.133
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 202530301
TornadoEF0-11996 to 20252300.0667
TornadoEF2-31996 to 20252300.0667
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

Source

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

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

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 45Not Applicable 45
Coastal Flooding0 of 45Not Applicable 45
Cold Wave45 of 4521.029.648.6Relatively Moderate 1, Relatively Low 44National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought0 of 45No Rating 45National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Earthquake45 of 4518.334.558.8Relatively Low 8, Very Low 37
Hail45 of 4528.345.060.2Relatively Low 34, Very Low 11National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave45 of 454.515.739.2Relatively Low 21, Very Low 24National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane45 of 4552.358.568.1Relatively Low 45
Ice Storm45 of 4536.858.476.9Relatively Moderate 7, Relatively Low 38National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding45 of 454.631.694.9Relatively High 2, Relatively Moderate 12, Relatively Low 22, Very Low 9
Landslide45 of 459.723.183.9Relatively Low 1, Very Low 44
Lightning45 of 4523.052.579.4Relatively High 1, Relatively Moderate 25, Relatively Low 19National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind45 of 4521.840.361.1Relatively Moderate 5, Relatively Low 40National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado45 of 4533.448.462.9Relatively Moderate 11, Relatively Low 34
Tsunami0 of 45Not Applicable 45
Volcanic Activity0 of 45Not Applicable 45
Wildfire45 of 4518.639.564.9Very Low 45
Winter Weather45 of 4525.334.251.1Relatively Moderate 2, Relatively Low 43National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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

Source

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

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Schenectady CountyCountyApproved, expires 2027-02-07$6,322,813.920; 0No NFIP community ID on this member's plan row. Includes $3,940,222.13 for declarations not counted as hazard incidents (DR-1391-NY, DR-4480-NY, EM-3186-NY).
Delanson villageVillageApproved, expires 2027-02-07FMA RL 0, SRL 0; any 0$38,583.176; 0
Schenectady cityCityApproved, expires 2027-02-07FMA RL 0, SRL 5; any 15$3,020,754.2588; 3Includes $391,126.84 for declarations not counted as hazard incidents (DR-4480-NY).
Scotia villageVillageApproved, expires 2027-02-07FMA RL 1, SRL 1; any 7$592,800.1635; 7
Duanesburg townTownApproved, expires 2027-02-07FMA RL 0, SRL 0; any 2$512,561.4214; 0
Glenville townTownApproved, expires 2027-02-07FMA RL 0, SRL 1; any 4$885,923.7828; 3Includes $7,649.51 for declarations not counted as hazard incidents (DR-4480-NY).
Niskayuna townTownApproved, expires 2027-02-07FMA RL 0, SRL 0; any 9$1,161,982.4026; 2Includes $72,575.68 for declarations not counted as hazard incidents (DR-4480-NY).
Princetown townTownApproved, expires 2027-02-07FMA RL 0, SRL 0; any 0$22,936.070; 0
Rotterdam townTownApproved, expires 2027-02-07FMA RL 0, SRL 0; any 5$1,189,179.7626; 1Includes $119,746.70 for declarations not counted as hazard incidents (DR-4480-NY).

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

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

Sources

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

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

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

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

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

Local data required

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

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

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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2022-02-08county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$28,062,243,663$7,035,773158,055$411$1,595$909,907under 0.0001%$0
Drought$0$0agriculture exposure is 0 in NRI
Earthquake$47,638,098,836158,061$599,040$130,3640.00126%
Hail$28,062,243,663$7,035,773158,055$13,318$3,557$246,025under 0.0001%
Heat Wave$28,062,243,663$7,035,773158,055$1$634$557,634under 0.0001%$0
Hurricane$28,062,243,663$7,021,752158,055$1,134,068$7,356$68,2340.00404%
Ice Storm$28,061,702,789158,050$304,181$41,2650.00108%
Inland Flooding$28,054,862,290$1,273,9712,185$23,767,669$10,439$508,635n/a (see note)$27,000NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. EAL as % of exposure: n/a.
Landslide$270,488,9051,297$78$377under 0.0001%
Lightning$28,062,243,663158,055$21,666$590,258under 0.0001%
Strong Wind$28,062,243,663$7,035,773158,055$119,748$601$447,0800.000427%$3,500Storm Events damage since the plan includes 3 zone-level Strong Wind records ($3,500), an event type the NRI definition of this hazard leaves out.
Tornado$28,062,243,663$7,035,773158,055$620,924$75$2,183,5050.00221%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$5,978,784,798$1,504,04434,489$8,150under $1$1,0560.000136%
Winter Weather$28,062,243,663$7,035,773158,055$44,712$1$19,0910.000159%$0

Totals since 2022-02-08 (Storm Events through 2026-06-30): 28 county-coded records, 12 with a damage value recorded (including $0), $27,000; 104 zone-level records, 10 with a damage value recorded (including $0), $3,500 reported for the zone; Public Assistance on counted declarations none found (0 declarations, 0 with PA).

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

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

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

Sources

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

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

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

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

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

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

Supports B2-a: context

County context

MeasureValue
Population158,055
Building value (total, not at risk)$28,062,243,663
Agriculture value (total, not at risk)$7,035,773
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$26,658,223
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)$5,703,430
Social vulnerability ratingRelatively Low
Community resilience ratingVery High
NRI versionDecember 2025

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

Source

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

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)1Severe repetitive loss, FMA definition (44 CFR 77.2)7
Repetitive loss, NFIP insurance definition41Severe repetitive loss, NFIP insurance definition5

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

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total1741542012
GLENVILLE,TOWN OF0141402
NISKAYUNA, TOWN OF0090900
ROTTERDAM, TOWN OF0050501
SCHENECTADY, CITY OF051541508
SCOTIA, VILLAGE OF1160701
DUANESBURG, TOWN OF0020200
State level, not in this county: county not reported001901903

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Delanson village3607370000000
Schenectady city360741051541508
Scotia village3607421160701
Duanesburg town3611910020200
Glenville town3607380141402
Niskayuna town3607390090900
Princetown town3611920000000
Rotterdam town3607400050501

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

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

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential122012006
2 to 4 unit residential0393904
other residential0090900
non-residential0231402
not reported0000000

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

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

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

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

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

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 40 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

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).

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.

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). Schenectady County, NY: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 36093). Preview: automated baseline. Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

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

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_NY_36093. Preview: automated baseline.