Ottawa County, Michigan: hazard risk

FEMA rates Ottawa County's overall risk Relatively Moderate (score 82.9 of 100, higher than 82% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by strong wind. Its storm record holds 530 events since 1950.

FEMA's rating for each hazard

These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.

FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).

National Risk Index (December 2025), Ottawa County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Strong WindRelatively High97.8$6.9M
Riverine FloodingRelatively Moderate88.0$45M
TornadoRelatively Moderate87.7$8.5M
HailRelatively Moderate83.8$1.5M
Winter WeatherRelatively Moderate82.0$317K
Ice StormRelatively Moderate77.5$469K
LightningRelatively Moderate76.5$867K
Cold WaveRelatively Moderate73.4$3.4M
Heat WaveRelatively Low63.6$939K
EarthquakeRelatively Low61.3$665K
LandslideVery Low51.8$2K
Coastal FloodingVery Low35.2$12K
WildfireVery Low34.4$26K
HurricaneVery Low26.4$15K
DroughtNo Rating0.0$0

Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.

What the record holds

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Severe thunderstorm wind1895$86M19th of 831096th of 3,080
Winter storms1590$5.0M16th of 83394th of 3,077
Hail1080$1.3M7th of 831176th of 3,080
Tornadoes2514$36M13th of 831084th of 3,080
Floods232$75M16th of 831869th of 3,080
High wind and dust storms200$24M23rd of 831277th of 3,080
Lightning30$109K23rd of 831177th of 3,080
Rip currents and high surf11–16th of 83191st of 2,080

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Ottawa County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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