City vs city
Grand Marsh vs Portage, WI
Portage currently scores 14 points higher overall than Grand Marsh, with the largest gap in hail.
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
Grand Marsh: 29/100 · Portage: 43/100
Portage is 14 points higher.
Flood
Grand Marsh: 46/100 · Portage: 95/100
Portage is 49 points higher.
Grand Marsh: FEMA NFHL flood zones: 6 features intersect this tile.
Portage: FEMA NFHL flood zones: 19 features intersect this tile.
Wind
Grand Marsh: 15/100 · Portage: 15/100
No gap.
Grand Marsh: Wind exposure derived from ingested design wind / climatology tiles.
Portage: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Marsh: 17/100 · Portage: 28/100
Portage is 11 points higher.
Grand Marsh: Lightning exposure derived from ingested climatology tiles.
Portage: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Marsh: 0/100 · Portage: 8/100
Portage is 8 points higher.
Grand Marsh: Tornado risk derived from NOAA SPC historical reports.
Portage: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Marsh: 10/100 · Portage: 73/100
Portage is 63 points higher.
Grand Marsh: Hail risk derived from NOAA SPC historical reports.
Portage: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Marsh: Unavailable · Portage: Unavailable
A score difference cannot be calculated without both sources.
Grand Marsh: Storm surge model is not available for this location yet.
Portage: Storm surge model is not available for this location yet.
Wildfire
Grand Marsh: 70/100 · Portage: 67/100
Grand Marsh is 3 points higher.
Grand Marsh: Wildfire exposure derived from ingested fire potential tiles.
Portage: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Marsh: 18/100 · Portage: 18/100
No gap.
Grand Marsh: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.