Natural hazards · Nyack

Nyack, NY natural hazards

Most of the natural-hazard damage FEMA expects in Nyack comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 62 claims here since 1978. 9 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations
Expected damage

How exposed is Nyack?

4
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Nyack to be higher than in 4% of U.S. communities, mostly from inland flooding.

Inland flooding46%Earthquakes13%Hurricanes9%Cold waves8%Tornadoes6%Strong wind6%Everything else13%
By hazard

What Nyack faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

46% of expected damage
Well below average · higher than 5% of U.S. places
Recorded about 3 times a year in the area

Earthquakes

13% of expected damage
Above average · higher than 70% of U.S. places

Hurricanes

9% of expected damage
Above average · higher than 71% of U.S. places
Recorded about once every 7 years in the area

Cold waves

8% of expected damage
Below average · higher than 30% of U.S. places
Recorded about once a year in the area

Tornadoes

6% of expected damage
Below average · higher than 39% of U.S. places

Strong wind

6% of expected damage
Above average · higher than 60% of U.S. places
Recorded about 5 times a year in the area

Lower here

Coastal floodingHailIce stormsWinter weatherHeat wavesWildfireLandslidesLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic activity
Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Flood insurance claims

Does Nyack flood?

Every paid claim on a federal flood insurance policy in Nyack, from FEMA’s records.

62paid claims since 1978
$2.5Mpaid to owners
9homes flooded more than once
19782026

Biggest named events

  • Not a named storm: 6 claims, $15K
  • Hurricane Irene: 6 claims, $155K
  • Hurricane Floyd: 5 claims, $132K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

of homes in flood zones
are insured
of all homes
are insured
No community discount. Nyack isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Rockland County.
Disasters that hit Nyack

9 federal disasters brought FEMA money here

Disasters the President declared that paid out in Nyack itself: aid to households, or repair grants to the Village of Nyack.

Brought FEMA money into NyackDeclared for Rockland County only
2021

Remnants of Hurricane Ida

87 households applied for aid $158K aid approved $1.3M to the Village of Nyack for repairs
2020

Tropical Storm Isaias

$27K to the Village of Nyack for repairs
2012

Hurricane Sandy

271 households applied for aid $599K aid approved $3.9M to the Village of Nyack for repairs
2011

Hurricane Irene

61 households applied for aid $108K aid approved $182K to the Village of Nyack for repairs
2010

Severe Winter Storm and Snowstorm

$21K to the Village of Nyack for repairs
2010

Severe Storms and Flooding

$66K to the Village of Nyack for repairs
2007

Severe Storms and Inland and Coastal Flooding

40 households applied for aid $27K aid approved
2003

Snow

$11K to the Village of Nyack for repairs
1999

Hurricane Floyd Major Disaster Declarations

$14K to the Village of Nyack for repairs
Rockland County has had 22 natural disasters declared since 1953, most often hurricanes and severe storms.
Around Nyack

Nyack and the towns around it

Orangetown: Very low, mostly inland floodingUpper Nyack: Very low, mostly inland floodingClarkstown: Very low, mostly inland floodingSleepy Hollow: Very low, mostly inland floodingMount Pleasant: Very low, mostly inland floodingGreenburgh: Very low, mostly inland floodingTarrytown: Very low, mostly inland floodingChestnut Ridge: Very low, mostly inland floodingRamapo: Low, mostly inland floodingIrvington: Very low, mostly inland floodingDobbs Ferry: Very low, mostly inland floodingHastings-on-Hudson: Low, mostly inland floodingBriarcliff Manor: Very low, mostly inland floodingOssining: Very low, mostly inland floodingHaverstraw: Moderate, mostly inland floodingHaverstraw: Moderate, mostly inland floodingOssining: Very low, mostly inland floodingCroton-on-Hudson: Very low, mostly inland floodingNorth Castle: Very low, mostly inland floodingNew Castle: Very low, mostly inland floodingNyack: Very low, mostly inland flooding NyackOrangetownUpper NyackClarkstownSleepy HollowMount Pleasant
Very lowLowModerateHighVery high
Sleepy Hollowmostly inland floodingVery low
Orangetownmostly inland floodingVery low
Clarkstownmostly inland floodingVery low
Mount Pleasantmostly inland floodingVery low
Nyackmostly inland floodingVery low
Upper Nyackmostly inland floodingVery low
About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Nyack covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Nyack’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Nyack. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Nyack total about $1.0M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.

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