Natural hazards · Flower Hill

Flower Hill, NY natural hazards

Most of the natural-hazard damage FEMA expects in Flower Hill comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 7 claims here since 2009. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Flower Hill?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Flower Hill to be higher than in 8% of U.S. communities, mostly from inland flooding.

Inland flooding69%Hurricanes12%Earthquakes6%Everything else13%

By hazard

What Flower Hill faces

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

Inland flooding

69% of expected damage

Well below average · higher than 18% of U.S. places

Recorded about 3 times a year in the area

Hurricanes

12% of expected damage

Well above average · higher than 76% of U.S. places

Recorded about once every 6 years in the area

Earthquakes

6% of expected damage

Above average · higher than 51% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Flower Hill flood?

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

7paid claims since 2009

$186Kpaid to owners

0homes flooded more than once

20092026

Biggest named events

Hurricane Ida: 6 claims, $180K

of homes in flood zones
are insured

of all homes
are insured

No community discount. Flower Hill isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Nassau County.

Disasters that hit Flower Hill

5 federal disasters brought FEMA money here

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

Brought FEMA money into Flower HillDeclared for Nassau County only

2021

Remnants of Hurricane Ida

1 household applied for aid $11K aid approved $22K to the Village of Flower Hill for repairs

2020

Tropical Storm Isaias

$61K to the Village of Flower Hill for repairs

2012

Hurricane Sandy

$251K to the Village of Flower Hill for repairs

2011

Hurricane Irene

$14K to the Village of Flower Hill for repairs

2010

Severe Winter Storm and Snowstorm

$13K to the Village of Flower Hill for repairs

Nassau County has had 24 natural disasters declared since 1953, most often hurricanes and severe storms.

Around Flower Hill

Flower Hill and the towns around it

Very lowLowModerateHighVery high

Roslynmostly inland floodingVery low

Roslyn Estatesmostly inland floodingVery low

Plandome Manormostly inland floodingVery low

Plandomemostly inland floodingVery low

Munsey Parkmostly inland floodingVery low

Flower Hillmostly 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. Flower Hill covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Flower Hill’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Flower Hill. 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 Flower Hill total about $1.1M 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.