Natural hazards · Semmes

Semmes, AL natural hazards

Most of the natural-hazard damage FEMA expects in Semmes comes from hurricanes, and overall the risk is very high for a U.S. community. Flood insurance has paid 2 claims here since 2004. 10 federal disasters brought FEMA money into town.

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

How exposed is Semmes?

86
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Semmes to be higher than in 86% of U.S. communities, mostly from hurricanes and inland flooding.

Hurricanes60%Inland flooding25%Everything else15%
By hazard

What Semmes faces

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

Hurricanes

60% of expected damage
Well above average · higher than 95% of U.S. places
Recorded about once every 4 years in the area

Inland flooding

25% of expected damage
Above average · higher than 56% of U.S. places
Recorded about 4 times a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat 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 Semmes flood?

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

2paid claims since 2004
$14Kpaid to owners
0homes flooded more than once
20042026

Biggest named events

  • Hurricane Ivan: 1 claim, $4K
of homes in flood zones
are insured
of all homes
are insured
No community discount. Semmes isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Mobile County.

What’s been done with FEMA grants

1storm safe rooms built
Disasters that hit Semmes

10 federal disasters brought FEMA money here

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

Brought FEMA money into SemmesDeclared for Mobile County only
2023

Severe Storms, Straight-Line Winds, and Tornadoes

5 households applied for aid $9K aid approved
2020

Hurricane Zeta

286 households applied for aid $298K aid approved $76K to the City of Semmes for repairs
2020

Hurricane Sally

799 households applied for aid $911K aid approved $48K to the City of Semmes for repairs
2017

Hurricane Nate

$5K to the City of Semmes for repairs
2014

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

59 households applied for aid $53K aid approved
2011

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

1 household applied for aid
2005

Hurricane Katrina

2,914 households applied for aid $2.2M aid approved
2005

Hurricane Dennis

138 households applied for aid $59K aid approved
2004

Hurricane Ivan

1,211 households applied for aid $1.0M aid approved
2003

Severe Storms, Tornadoes, and Flooding

60 households applied for aid $83K aid approved
Mobile County has had 32 natural disasters declared since 1953, most often hurricanes and severe storms.
Around Semmes

Semmes and the towns around it

Mobile: Very high, mostly hurricanesTillmans Corner: Very high, mostly hurricanesPrichard: Very high, mostly hurricanesChickasaw: Very high, mostly hurricanesTheodore: Very high, mostly hurricanesSaraland: Very high, mostly inland floodingSpanish Fort: Very high, mostly hurricanesSatsuma: Very high, mostly hurricanesSemmes: Very high, mostly hurricanes SemmesMobile
Very lowLowModerateHighVery high
Mobilemostly hurricanesVery high
Semmesmostly hurricanesVery high
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. Semmes covers 3 census tracts, combined by population.
Money that reached townFlood claims are matched to Semmes’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the City of Semmes. 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 Semmes total about $6.0M 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01