City vs city
Alpena vs Port Austin Township, MI
Alpena currently scores 8 points higher overall than Port Austin Township, with the largest gap in wildfire.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Alpena: 29/100 · Port Austin Township: 21/100
Alpena is 8 points higher.
Flood
Alpena: 68/100 · Port Austin Township: 48/100
Alpena is 20 points higher.
Alpena: FEMA NFHL flood zones: 12 features intersect this tile.
Port Austin Township: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Alpena: 14/100 · Port Austin Township: 15/100
Port Austin Township is 1 points higher.
Alpena: Wind exposure derived from ingested design wind / climatology tiles.
Port Austin Township: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alpena: 18/100 · Port Austin Township: 28/100
Port Austin Township is 10 points higher.
Alpena: Lightning exposure derived from ingested climatology tiles.
Port Austin Township: Lightning exposure derived from ingested climatology tiles.
Tornado
Alpena: 15/100 · Port Austin Township: 4/100
Alpena is 11 points higher.
Alpena: Tornado risk derived from NOAA SPC historical reports.
Port Austin Township: Tornado risk derived from NOAA SPC historical reports.
Hail
Alpena: 33/100 · Port Austin Township: 10/100
Alpena is 23 points higher.
Alpena: Hail risk derived from NOAA SPC historical reports.
Port Austin Township: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alpena: Unavailable · Port Austin Township: Unavailable
A score difference cannot be calculated without both sources.
Alpena: Storm surge model is not available for this location yet.
Port Austin Township: Storm surge model is not available for this location yet.
Wildfire
Alpena: 41/100 · Port Austin Township: 16/100
Alpena is 25 points higher.
Alpena: Wildfire exposure derived from ingested fire potential tiles.
Port Austin Township: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alpena: 17/100 · Port Austin Township: 28/100
Port Austin Township is 11 points higher.
Alpena: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Port Austin Township: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.