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Natural hazards · Thompson

Thompson, NY natural hazards

Most of the natural-hazard damage FEMA expects in Thompson comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 57 claims here since 1978. 8 federal disasters brought FEMA money into town.

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

How exposed is Thompson?

10
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Thompson to be higher than in 10% of U.S. communities, mostly from inland flooding.

Inland flooding60%Cold waves13%Tornadoes10%Hurricanes6%Everything else11%
By hazard

What Thompson faces

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

Inland flooding

60% of expected damage
Well below average · higher than 22% of U.S. places
Recorded about 2 times a year in the area

Cold waves

13% of expected damage
Above average · higher than 50% of U.S. places
Recorded about 4 times a year in the area

Tornadoes

10% of expected damage
Below average · higher than 46% of U.S. places

Hurricanes

6% of expected damage
Above average · higher than 68% of U.S. places
Recorded about once every 25 years in the area

Lower here

HailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Thompson flood?

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

57paid claims since 1978
$325Kpaid to owners
7homes flooded more than once
19782026

Biggest named events

  • Not a named storm: 15 claims, $36K
  • Torrential rain: 7 claims, $160K
  • Hurricane Irene: 5 claims, $70K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

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

8 federal disasters brought FEMA money here

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

Brought FEMA money into ThompsonDeclared for Sullivan County only
2017

Severe Winter Storm and Snowstorm

$48K to the Town of Thompson for repairs
2012

Hurricane Sandy

$240K to the Town of Thompson for repairs
2011

Hurricane Irene

$242K to the Town of Thompson for repairs
2006

Severe Storms and Flooding

$42K to the Town of Thompson for repairs
2005

Severe Storms and Flooding

$731K to the Town of Thompson for repairs
2004

Tropical Depression Ivan

$22K to the Town of Thompson for repairs
2003

Snow

$23K to the Town of Thompson for repairs
2002

Snowstorms

$51K to the Town of Thompson for repairs
Sullivan County has had 26 natural disasters declared since 1953, most often severe storms and hurricanes.
Around Thompson

Thompson and the towns around it

Bethel: Very low, mostly inland floodingFallsburg: Low, mostly inland floodingForestburgh: Low, mostly inland floodingMamakating: Moderate, mostly inland floodingLiberty: Very low, mostly inland floodingCallicoon: High, mostly inland floodingCochecton: Low, mostly inland floodingHighland: Moderate, mostly inland floodingDelaware: High, mostly inland floodingNeversink: High, mostly inland floodingWawarsing: High, mostly inland floodingLumberland: Low, mostly inland floodingWallkill: Very low, mostly inland floodingShawangunk: Low, mostly inland floodingCrawford: Low, mostly inland floodingBloomingburg: Low, mostly inland floodingMount Hope: Very low, mostly inland floodingDeerpark: High, mostly inland floodingThompson: Very low, mostly inland flooding ThompsonBethelFallsburgForestburghMamakating
Very lowLowModerateHighVery high
Mamakatingmostly inland floodingModerate
Fallsburgmostly inland floodingLow
Forestburghmostly inland floodingLow
Bethelmostly inland floodingVery low
Thompsonmostly 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. Thompson covers 5 census tracts, combined by population.
Money that reached townFlood claims are matched to Thompson’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Thompson. 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 Thompson total about $5.0M 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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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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