Alcona County
Michigan — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 18th
Alcona County faces very low composite natural disaster risk (NRI Risk Index score 17.7, 18th national percentile), driven primarily by lightning and landslide exposure. Expected annual loss across all 18 hazard types is $5M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Lightning | Medium | 25.31 / yr | $216K |
| Landslide | Very Low | 0.18 / yr | $1K |
| Cold Wave | Low | 2.05 / yr | $553K |
| Riverine Flood | Low | 0.14 / yr | $4M |
| Wildfire | Very Low | 0.00 / yr | $20K |
| Coastal Flood | Very Low | 0.01 / yr | $3K |
| Hurricane | Very Low | 0.01 / yr | $10K |
| Hail | Very Low | 0.87 / yr | $68K |
| Tornado | Very Low | 0.17 / yr | $177K |
| Strong Wind | Very Low | 0.77 / yr | $84K |
| Heat Wave | Very Low | 0.84 / yr | $16K |
| Ice Storm | Very Low | 0.07 / yr | $4K |
| Earthquake | Very Low | 0.00 / yr | $5K |
| Winter Weather | Very Low | 13.68 / yr | $2K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Drought | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Alcona County?
Alcona County has a composite FEMA National Risk Index score of 17.7 out of 100, placing it in the Very Low category and the 18th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Alcona County?
The three highest-rated hazards are Lightning (Medium, $216K EAL), Landslide (Very Low, $1K EAL), Cold Wave (Low, $553K EAL). These account for most of the county's expected annual losses.
How does Alcona County compare to other Michigan counties?
Alcona County ranks #73 of 83 Michigan counties for overall natural disaster risk, with a very low rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Alcona County's $5M EAL is a statistical average, not a guarantee for any specific year or address.