Natural hazards · Chewalla

Chewalla, TN natural hazards

Most of the natural-hazard damage FEMA expects in Chewalla comes from earthquakes, and overall the risk is moderate for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Chewalla?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Chewalla to be higher than in 49% of U.S. communities, mostly from earthquakes and cold waves.

Earthquakes25%Cold waves24%Inland flooding23%Tornadoes12%Heat waves6%Strong wind6%Everything else5%

By hazard

What Chewalla faces

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

Earthquakes

25% of expected damage

Well above average · higher than 84% of U.S. places

Cold waves

24% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about 2 times a year in the area

Inland flooding

23% of expected damage

Below average · higher than 36% of U.S. places

Recorded about once a year in the area

Tornadoes

12% of expected damage

Well above average · higher than 87% of U.S. places

Recorded about once every 13 years in the area

Heat waves

6% of expected damage

Above average · higher than 70% of U.S. places

Recorded about 15 times a year in the area

Strong wind

6% of expected damage

Well above average · higher than 86% of U.S. places

Recorded about 2 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireLandslidesLightningDrought

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 Chewalla flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: McNairy County.

Disasters that hit Chewalla

1 federal disaster brought FEMA money here

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

Brought FEMA money into ChewallaDeclared for McNairy County only

2010

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

1 household applied for aid

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

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. Chewalla 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 Chewalla’s own flood-insurance community; household aid to the registrant’s city; repair grants to Chewalla. 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.