FEMA rates relative cold wave risk for Wayne County as very high and reports FEMA annualized frequency of 0.569 per year for the area.
FEMA summary
FEMA's profile for Wayne County reports FEMA annualized frequency of 0.569 per year for cold wave. FEMA's relative risk rating for the area is very high; the annualized frequency is a separate measure.
Hazard metrics cover FEMA county-equivalent geographies rather than individual addresses or parcels. Use local or state hazard maps before making a property, insurance, retrofit, or evacuation decision.
Select a hazard to inspect FEMA's figures for Wayne County.
Cold Wave
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
99.9/100
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
The area loss estimate combines FEMA's modeled losses to buildings, population, and agriculture across Wayne County. It is not an estimate for a home or address.
City risk summary
For Detroit, FEMA rates cold wave risk for Wayne County as very high, with a relative score of 99.9/100. Cold wave shares the highest relative score with strong wind. Riverine flooding follows at 99.5/100.
Using FEMA data for Wayne County, Detroit is tied #1 among 18 covered Michigan entries for cold wave risk; 4 entries share that score. Dearborn is about 7.5 straight-line miles from the Detroit map point and uses the same FEMA geography.
For homeowners and movers
Preparedness actions
Living in Detroit? Learn how to handle water storage, sanitation, and security in a small space.
The map shows Detroit. All FEMA figures on this page cover Wayne County.
The FEMA figures cover Wayne County. Address-level conditions require local maps, building records, and property details.
FEMA rates relative cold wave risk for Wayne County as very high. Its FEMA annualized frequency is 0.569 per year. Damage at a specific address also depends on the building, soil, elevation, and exact hazard zone.
Among 18 Michigan cities covered by this directory, Detroit is Tied #1 for relative cold wave risk based on FEMA's score for Wayne County. 4 covered cities share this rank because they use the same FEMA geography. Homes within Detroit can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for Wayne County, the highest relative ratings are Cold Wave (Very High), Strong Wind (Very High), and Riverine Flooding (Relatively High). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover Wayne County. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives Wayne County an overall relative risk rating of relatively high. Conditions at a specific home depend on its hazard zones, building type, maintenance, insurance, and access to evacuation routes and emergency services.
Start with this step: Confirm the exact hazard using official local maps before making property or insurance decisions. Know how local officials issue warnings and evacuation instructions. Use Ready.gov Be Informed and local emergency guidance for a complete plan.
Distances are measured between city coordinates.
| City | Distance | Cold Wave rating | Relative score |
|---|---|---|---|
| Dearborn, MI | 7 mi | Very High | 99.9 |
| Warren, MI | 9 mi | Very High | 99.1 |
| Livonia, MI | 14 mi | Very High | 99.9 |
| Troy, MI | 14 mi | Very High | 99.2 |
| Sterling Heights, MI | 14 mi | Very High | 99.1 |
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View productHazard metrics come from FEMA National Risk Index v1.19.0 (March 2023). City population and coordinates come from SimpleMaps US Cities Database. For current conditions, use official local maps, warnings, inspections, and professional advice.