City vs city
Portage vs Three Rivers, MI
Portage currently scores 7 points higher overall than Three Rivers, with the largest gap in tornado.
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
Portage: 50/100 · Three Rivers: 43/100
Portage is 7 points higher.
Flood
Portage: 59/100 · Three Rivers: 72/100
Three Rivers is 13 points higher.
Portage: FEMA NFHL flood zones: 7 features intersect this tile.
Three Rivers: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Portage: 16/100 · Three Rivers: 16/100
No gap.
Portage: Wind exposure derived from ingested design wind / climatology tiles.
Three Rivers: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Portage: 35/100 · Three Rivers: 43/100
Three Rivers is 8 points higher.
Portage: Lightning exposure derived from ingested climatology tiles.
Three Rivers: Lightning exposure derived from ingested climatology tiles.
Tornado
Portage: 62/100 · Three Rivers: 0/100
Portage is 62 points higher.
Portage: Tornado risk derived from NOAA SPC historical reports.
Three Rivers: Tornado risk derived from NOAA SPC historical reports.
Hail
Portage: 100/100 · Three Rivers: 61/100
Portage is 39 points higher.
Portage: Hail risk derived from NOAA SPC historical reports.
Three Rivers: Hail risk derived from NOAA SPC historical reports.
Storm surge
Portage: Unavailable · Three Rivers: Unavailable
A score difference cannot be calculated without both sources.
Portage: Storm surge model is not available for this location yet.
Three Rivers: Storm surge model is not available for this location yet.
Wildfire
Portage: 45/100 · Three Rivers: 36/100
Portage is 9 points higher.
Portage: Wildfire exposure derived from ingested fire potential tiles.
Three Rivers: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Portage: 30/100 · Three Rivers: 29/100
Portage is 1 points higher.
Portage: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Three Rivers: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.