Natural hazards · Au Sable

Au Sable, MI natural hazards

Most of the natural-hazard damage FEMA expects in Au Sable comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 15 claims here since 1986.

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

Expected damage

How exposed is Au Sable?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Au Sable to be higher than in 31% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding67%Cold waves17%Everything else17%

By hazard

What Au Sable faces

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

Inland flooding

67% of expected damage

Above average · higher than 59% of U.S. places

Recorded about once every 6 years in the area

Cold waves

17% of expected damage

Below average · higher than 48% of U.S. places

Recorded about 2 times a year in the area

Lower here

Coastal floodingHurricanesTornadoesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic 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 Au Sable flood?

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

15paid claims since 1986

$140Kpaid to owners

0homes flooded more than once

19862026

Biggest named events

2026-04-Flooding: 2 claims, $27K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Iosco County.

Disasters that hit Au Sable

Federal disasters declared here

None of the disasters declared for Iosco County shows FEMA aid or repair money reaching Au Sable itself in FEMA’s records.

Brought FEMA money into Au SableDeclared for Iosco County only

Iosco County has had 9 natural disasters declared since 1953, most often floods and winter storms.

Around Au Sable

Au Sable and the towns around it

Very lowLowModerateHighVery high

Au Sablemostly inland floodingLow

Oscodamostly inland floodingVery low

Baldwinmostly inland floodingVery low

Wilbermostly 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. Au Sable covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Au Sable’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Au Sable. 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 Au Sable total about $1.2M 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.