Natural hazards · Harrisonville

Harrisonville, MO natural hazards

Most of the natural-hazard damage FEMA expects in Harrisonville comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 22 claims here since 1982. 6 federal disasters brought FEMA money into town.

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

How exposed is Harrisonville?

41
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Harrisonville to be higher than in 41% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding37%Tornadoes22%Cold waves14%Heat waves8%Hail7%Strong wind7%Everything else4%
By hazard

What Harrisonville faces

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

Inland flooding

37% of expected damage
Below average · higher than 47% of U.S. places
Recorded about 2 times a year in the area

Tornadoes

22% of expected damage
Well above average · higher than 92% of U.S. places

Cold waves

14% of expected damage
Below average · higher than 35% of U.S. places
Recorded about 2 times a year in the area

Heat waves

8% of expected damage
Well above average · higher than 87% of U.S. places
Recorded about 15 times a year in the area

Hail

7% of expected damage
Well above average · higher than 93% of U.S. places
Recorded about 9 times a year in the area

Strong wind

7% of expected damage
Below average · higher than 41% of U.S. places
Recorded about 7 times a year in the area

Lower here

HurricanesIce stormsWinter weatherWildfireEarthquakesLandslidesLightningDrought

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 Harrisonville flood?

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

22paid claims since 1982
$1.3Mpaid to owners
3homes flooded more than once
19822026

Biggest named events

  • Not a named storm: 1 claim, $30K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

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

What’s been done with FEMA grants

5flood-prone properties bought out and cleared
1storm safe rooms built
Disasters that hit Harrisonville

6 federal disasters brought FEMA money here

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

Brought FEMA money into HarrisonvilleDeclared for Cass County only
2011

Severe Winter Storm and Snowstorm

$10K to the City of Harrisonville for repairs
2007

Severe Storms and Flooding

$31K to the City of Harrisonville for repairs
2006

Severe Storms, Tornadoes and Flooding

1 household applied for aid
2004

Severe Storms, Tornadoes, and Flooding

3 households applied for aid $1K aid approved
2003

Severe Storms, Tornadoes, and Flooding

1 household applied for aid
2002

Severe Winter Ice Storm

$461K to the City of Harrisonville for repairs
Cass County has had 18 natural disasters declared since 1953, most often severe storms and ice storms.
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. Harrisonville covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Harrisonville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Harrisonville. 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 Harrisonville total about $3.5M 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/18 · 2025-01-01