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Natural hazards · Walnut Grove

Walnut Grove, MO natural hazards

Most of the natural-hazard damage FEMA expects in Walnut Grove comes from inland flooding, and overall the risk is moderate for a U.S. community. 5 federal disasters brought FEMA money into town.

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

How exposed is Walnut Grove?

50
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Walnut Grove to be higher than in 50% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding53%Heat waves15%Tornadoes12%Cold waves5%Everything else15%
By hazard

What Walnut Grove faces

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

Inland flooding

53% of expected damage
Above average · higher than 64% of U.S. places
Recorded about 6 times a year in the area

Heat waves

15% of expected damage
Well above average · higher than 83% of U.S. places
Recorded about 13 times a year in the area

Tornadoes

12% of expected damage
Above average · higher than 69% of U.S. places
Recorded about once every 22 years in the area

Cold waves

5% of expected damage
Above average · higher than 57% of U.S. places
Recorded about 2 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireEarthquakesLandslidesStrong windLightningDrought

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 Walnut Grove flood?

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

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

What’s been done with FEMA grants

1storm safe rooms built
Disasters that hit Walnut Grove

5 federal disasters brought FEMA money here

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

Brought FEMA money into Walnut GroveDeclared for Greene County only
2019

Severe Storms, Tornadoes, and Flooding

2 households applied for aid $5K aid approved
2015

Severe Storms, Tornadoes, Straight-Line Winds, and Flooding

2 households applied for aid $791 aid approved
2009

Severe Storms, Tornadoes, and Flooding

15 households applied for aid $14K aid approved
2008

Severe Storms and Flooding

6 households applied for aid $6K aid approved
2007

Severe Winter Storms and Flooding

$19K to the City of Walnut Grove for repairs
Greene County has had 23 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. Walnut Grove 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 Walnut Grove’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Walnut Grove. 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/18 · 2025-01-01
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