Natural hazards · Port Sanilac

Port Sanilac, MI natural hazards

Most of the natural-hazard damage FEMA expects in Port Sanilac comes from cold waves, and overall the risk is very low 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 Port Sanilac?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Port Sanilac to be higher than in 14% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves48%Inland flooding34%Tornadoes8%Everything else10%

By hazard

What Port Sanilac faces

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

Cold waves

48% of expected damage

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

Recorded about 3 times a year in the area

Inland flooding

34% of expected damage

Below average · higher than 27% of U.S. places

Recorded about once every 3 years in the area

Tornadoes

8% of expected damage

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

Lower here

Coastal floodingHurricanesHailIce 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 Port Sanilac flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Sanilac County.

Disasters that hit Port Sanilac

1 federal disaster brought FEMA money here

Disasters the President declared that paid out in Port Sanilac itself: aid to households, or repair grants to the Village of Port Sanilac.

Brought FEMA money into Port SanilacDeclared for Sanilac County only

2000

Snow

$2K to the Village of Port Sanilac for repairs

Sanilac County has had 10 natural disasters declared since 1953, most often severe storms and winter storms.

Around Port Sanilac

Port Sanilac and the towns around it

Very lowLowModerateHighVery high

Port Sanilacmostly cold wavesVery low

Sanilacmostly cold wavesVery 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. Port Sanilac 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 Port Sanilac’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Port Sanilac. 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.