Bay County, Michigan: hazard risk

FEMA rates Bay County's overall risk Relatively Low (score 78.2 of 100, higher than 78% of rated U.S. counties); 3 of its 15 hazards are rated Relatively High or Very High, led by winter weather, strong wind, cold wave. Its storm record holds 436 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), Bay County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherRelatively High94.7$626K
Strong WindRelatively High94.4$2.8M
Cold WaveRelatively High89.9$6.9M
TornadoRelatively Moderate84.0$4.9M
HailRelatively Moderate83.7$1.1M
Riverine FloodingRelatively Moderate81.5$21M
Ice StormRelatively Moderate62.6$148K
LightningRelatively Moderate57.0$297K
Heat WaveRelatively Low53.6$435K
Coastal FloodingRelatively Low45.8$51K
EarthquakeVery Low42.1$169K
HurricaneVery Low42.1$35K
LandslideVery Low14.9$60
WildfireVery Low14.7$5K
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 wind1641$6.0M17th of 831080th of 3,080
Hail990$25M18th of 831822nd of 3,080
Winter storms671$2.5M40th of 831013th of 3,077
High wind and dust storms340$15M3rd of 83503rd of 3,080
Floods211$17M6th of 831623rd of 3,080
Extreme cold152$1.7M12th of 83757th of 3,076
Tornadoes140$10M26th of 831598th of 3,080
Heat130–2nd of 83785th of 3,076
Lightning50$95K15th of 83791st of 3,080
Drought20–2nd of 832229th of 3,063
Heavy rain10$51K15th of 831841st of 3,080

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

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

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