Natural hazards · Black Brook

Black Brook, WI natural hazards

Most of the natural-hazard damage FEMA expects in Black Brook comes from inland flooding, and overall the risk is low for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Black Brook?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Black Brook to be higher than in 24% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding33%Cold waves31%Tornadoes15%Strong wind9%Hail7%Everything else5%

By hazard

What Black Brook faces

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

Inland flooding

33% of expected damage

Below average · higher than 25% of U.S. places

Recorded about once every 3 years in the area

Cold waves

31% of expected damage

Well below average · higher than 19% of U.S. places

Recorded about 9 times a year in the area

Tornadoes

15% of expected damage

Well above average · higher than 81% of U.S. places

Recorded about once every 47 years in the area

Strong wind

9% of expected damage

Well above average · higher than 96% of U.S. places

Recorded about 4 times a year in the area

Hail

7% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about 5 times a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

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 Black Brook flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Polk County.

Disasters that hit Black Brook

2 federal disasters brought FEMA money here

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

Brought FEMA money into Black BrookDeclared for Polk County only

2002

Severe Storms, Tornadoes and Flooding

$3K to the Town of Black Brook for repairs

2001

Flooding, Severe Storms and Tornadoes

$3K to the Town of Black Brook for repairs

Polk County has had 8 natural disasters declared since 1953, most often floods and tornadoes.

Around Black Brook

Black Brook and the towns around it

Very lowLowModerateHighVery high

Cylonmostly inland floodingModerate

Aldenmostly inland floodingModerate

Black Brookmostly inland floodingLow

Amerymostly inland floodingLow

Lincolnmostly inland floodingLow

Clear Lakemostly cold wavesVery 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. Black Brook covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Black Brook’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Black Brook. 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 Black Brook total about $2.6M 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.