Natural hazards · Duncombe

Duncombe, IA natural hazards

Most of the natural-hazard damage FEMA expects in Duncombe comes from drought, and overall the risk is low for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Duncombe?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Duncombe to be higher than in 38% of U.S. communities, mostly from drought and tornadoes.

Drought29%Tornadoes27%Inland flooding21%Hail13%Everything else10%

By hazard

What Duncombe faces

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

Drought

29% of expected damage

Recorded about 15 times a year in the area

Tornadoes

27% of expected damage

Well above average · among the top 1% of U.S. places

Recorded about once every 6 years in the area

Inland flooding

21% of expected damage

Below average · higher than 35% of U.S. places

Recorded about 4 times a year in the area

Hail

13% of expected damage

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

Recorded about 5 times a year in the area

Lower here

HurricanesIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Duncombe flood?

FEMA's records show no paid flood insurance claims in Duncombe.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Webster County.

Disasters that hit Duncombe

3 federal disasters brought FEMA money here

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

Brought FEMA money into DuncombeDeclared for Webster County only

2010

Severe Storms, Flooding, and Tornadoes

27 households applied for aid $62K aid approved $12K to the City of Duncombe for repairs

2008

Severe Storms, Tornadoes, and Flooding

9 households applied for aid $22K aid approved

2007

Snow

$2K to the City of Duncombe for repairs

Webster County has had 17 natural disasters declared since 1953, most often severe storms and floods.

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. Duncombe is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Duncombe’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Duncombe. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.