Natural hazards · Lyons

Lyons, WI natural hazards

Most of the natural-hazard damage FEMA expects in Lyons comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 4 claims here since 2017. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Lyons?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Lyons to be higher than in 23% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding52%Tornadoes17%Cold waves14%Hail8%Everything else9%

By hazard

What Lyons faces

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

Inland flooding

52% of expected damage

Below average · higher than 34% of U.S. places

Recorded about once a year in the area

Tornadoes

17% of expected damage

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

Recorded about once every 26 years in the area

Cold waves

14% of expected damage

Below average · higher than 31% of U.S. places

Recorded about 5 times a year in the area

Hail

8% of expected damage

Well above average · higher than 89% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Lyons flood?

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

4paid claims since 2017

$146Kpaid to owners

0homes flooded more than once

20172026

Biggest named events

2026-04-Flooding: 1 claim, $12K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Walworth County.

Disasters that hit Lyons

3 federal disasters brought FEMA money here

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

Brought FEMA money into LyonsDeclared for Walworth County only

2011

Severe Winter Storm and Snowstorm

$10K to the Town of Lyons for repairs

2008

Record Snow and Near Record Snow

$8K to the Town of Lyons for repairs

2000

Snow

$3K to the Town of Lyons for repairs

Walworth County has had 11 natural disasters declared since 1953, most often winter storms and severe storms.

Around Lyons

Lyons and the towns around it

Very lowLowModerateHighVery high

Burlingtonmostly inland floodingModerate

Spring Prairiemostly inland floodingLow

Burlingtonmostly inland floodingLow

Bloomfieldmostly inland floodingLow

Lyonsmostly inland floodingLow

Genevamostly inland floodingVery low

Lake Genevamostly inland floodingVery 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. Lyons covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Lyons’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Town of Lyons. 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 Lyons total about $2.4M 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.