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Natural hazards · Brothersfield

Brothersfield, SD natural hazards

Most of the natural-hazard damage FEMA expects in Brothersfield comes from inland flooding, and overall the risk is moderate for a U.S. community. 6 federal disasters brought FEMA money into town.

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

How exposed is Brothersfield?

49
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Brothersfield to be higher than in 49% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding41%Tornadoes23%Cold waves13%Drought8%Hail6%Everything else9%
By hazard

What Brothersfield faces

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

Inland flooding

41% of expected damage
Above average · higher than 54% of U.S. places
Recorded about 2 times a year in the area

Tornadoes

23% of expected damage
Well above average · among the top 1% of U.S. places
Recorded about once every 4 years in the area

Cold waves

13% of expected damage
Below average · higher than 33% of U.S. places
Recorded about 7 times a year in the area

Drought

8% of expected damage
Recorded about 25 times a year in the area

Hail

6% of expected damage
Well above average · higher than 80% of U.S. places
Recorded about 6 times a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Brothersfield flood?

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

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

6 federal disasters brought FEMA money here

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

Brought FEMA money into BrothersfieldDeclared for Turner County only
2019

Severe Winter Storm, Snowstorm, and Flooding

$12K to the Township of Brothersfield for repairs
2010

Flooding

$5K to the Township of Brothersfield for repairs
2009

Severe Winter Storm and Snowstorm

$1K to the Township of Brothersfield for repairs
2008

Severe Storms and Flooding

$2K to the Township of Brothersfield for repairs
2004

Severe Storms and Flooding

$6K to the Township of Brothersfield for repairs
2001

Severe Winter Storms, Flooding, and Ice Jams

$10K to the Township of Brothersfield for repairs
Turner County has had 23 natural disasters declared since 1953, most often floods and severe storms.
Around Brothersfield

Brothersfield and the towns around it

Monroe: Moderate, mostly inland floodingHome: Moderate, mostly inland floodingParker: Moderate, mostly inland floodingMarion: Moderate, mostly inland floodingMarion: Moderate, mostly inland floodingDolton: Moderate, mostly inland floodingDelapre: Low, mostly tornadoesGermantown: Moderate, mostly inland floodingHurley: Moderate, mostly inland floodingBrothersfield: Moderate, mostly inland flooding BrothersfieldMonroeHomeParker
Very lowLowModerateHighVery high
Brothersfieldmostly inland floodingModerate
Monroemostly inland floodingModerate
Homemostly inland floodingModerate
Parkermostly inland floodingModerate
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. Brothersfield 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 Brothersfield’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Brothersfield. 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.

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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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