Alger County, Michigan: hazard risk

FEMA rates Alger County's overall risk Very Low (score 9.6 of 100, higher than 9% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 697 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), Alger County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LightningRelatively High82.5$639K
LandslideRelatively Low67.1$4K
HailRelatively Low60.7$302K
Cold WaveRelatively Low37.6$464K
WildfireVery Low28.9$10K
Riverine FloodingVery Low22.0$2.1M
Winter WeatherVery Low20.5$14K
Ice StormVery Low16.6$9K
DroughtVery Low16.6$1K
Coastal FloodingVery Low15.4$0
Strong WindVery Low15.3$99K
TornadoVery Low9.1$42K
Heat WaveVery Low4.8$4K
EarthquakeVery Low1.0$800
HurricaneNo 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.
Winter storms4520$585K3rd of 83127th of 3,077
Hail840$9K59th of 832434th of 3,080
Severe thunderstorm wind530$397K77th of 832594th of 3,080
High wind and dust storms330$2.1M22nd of 831271st of 3,080
Extreme cold280–14th of 83817th of 3,076
Heavy rain110$5K5th of 83809th of 3,080
Floods80$1.1M66th of 832851st of 3,080
Heat70–20th of 831650th of 3,076
Tornadoes70$2.4M69th of 832514th of 3,080
Rip currents and high surf53$2K4th of 83134th of 2,080
Lightning31$23K39th of 831556th of 3,080
Wildfires10–13th of 831121st of 2,972

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

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

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