FEMA rates relative ice storm risk for St. Clair County as relatively high and reports FEMA annualized frequency of 2.072 per year for the area.
FEMA summary
FEMA's profile for St. Clair County reports FEMA annualized frequency of 2.072 per year for ice storm. FEMA's relative risk rating for the area is relatively 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 St. Clair County.
Ice Storm
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
95.7/100
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 St. Clair County. It is not an estimate for a home or address.
City risk summary
For Port Huron, FEMA rates ice storm risk for St. Clair County as relatively high, with a relative score of 95.7/100. The next highest relative scores are cold wave at 93.7/100 and strong wind at 93.1/100.
Using FEMA data for St. Clair County, Port Huron is #6 among 18 covered Michigan entries for ice storm risk. Sterling Heights is about 41 straight-line miles from the Port Huron map point; its FEMA figures cover Macomb County.
For homeowners and movers
Preparedness actions
Living in Port Huron? Learn how to handle water storage, sanitation, and security in a small space.
The map shows Port Huron. All FEMA figures on this page cover St. Clair County.
The FEMA figures cover St. Clair County. Address-level conditions require local maps, building records, and property details.
FEMA rates relative ice storm risk for St. Clair County as relatively high. Its FEMA annualized frequency is 2.072 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, Port Huron is #6 for relative ice storm risk based on FEMA's score for St. Clair County. Homes within Port Huron can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for St. Clair County, the highest relative ratings are Ice Storm (Relatively High), Cold Wave (Relatively High), and Strong Wind (Relatively High). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover St. Clair County. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives St. Clair County an overall relative risk rating of relatively low. 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 | Ice Storm rating | Relative score |
|---|---|---|---|
| Sterling Heights, MI | 41 mi | Very High | 99.7 |
| Warren, MI | 45 mi | Very High | 99.7 |
| Troy, MI | 45 mi | Very High | 99.8 |
| Detroit, MI | 53 mi | Relatively Moderate | 82.8 |
| Farmington Hills, MI | 59 mi | Very High | 99.8 |
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Hazard 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.