City vs city
Lancaster vs Potosi, WI
Lancaster currently scores 9 points higher overall than Potosi, 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
Lancaster: 35/100 · Potosi: 26/100
Lancaster is 9 points higher.
Flood
Lancaster: 38/100 · Potosi: 49/100
Potosi is 11 points higher.
Lancaster: FEMA NFHL flood zones: 3 features intersect this tile.
Potosi: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Lancaster: 17/100 · Potosi: 17/100
No gap.
Lancaster: Wind exposure derived from ingested design wind / climatology tiles.
Potosi: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lancaster: 24/100 · Potosi: 27/100
Potosi is 3 points higher.
Lancaster: Lightning exposure derived from ingested climatology tiles.
Potosi: Lightning exposure derived from ingested climatology tiles.
Tornado
Lancaster: 15/100 · Potosi: 12/100
Lancaster is 3 points higher.
Lancaster: Tornado risk derived from NOAA SPC historical reports.
Potosi: Tornado risk derived from NOAA SPC historical reports.
Hail
Lancaster: 92/100 · Potosi: 49/100
Lancaster is 43 points higher.
Lancaster: Hail risk derived from NOAA SPC historical reports.
Potosi: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lancaster: Unavailable · Potosi: Unavailable
A score difference cannot be calculated without both sources.
Lancaster: Storm surge model is not available for this location yet.
Potosi: Storm surge model is not available for this location yet.
Wildfire
Lancaster: 39/100 · Potosi: 8/100
Lancaster is 31 points higher.
Lancaster: Wildfire exposure derived from ingested fire potential tiles.
Potosi: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Lancaster: 17/100 · Potosi: 17/100
No gap.
Lancaster: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Potosi: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.