City vs city
Nelson vs Phoenix, AZ
Nelson currently scores 1 points higher overall than Phoenix, 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
Nelson: 38/100 · Phoenix: 37/100
Nelson is 1 points higher.
Flood
Nelson: 100/100 · Phoenix: 94/100
Nelson is 6 points higher.
Nelson: FEMA NFHL flood zones: 25 features intersect this tile.
Phoenix: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Nelson: 12/100 · Phoenix: 11/100
Nelson is 1 points higher.
Nelson: Wind exposure derived from ingested design wind / climatology tiles.
Phoenix: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nelson: 34/100 · Phoenix: 21/100
Nelson is 13 points higher.
Nelson: Lightning exposure derived from ingested climatology tiles.
Phoenix: Lightning exposure derived from ingested climatology tiles.
Tornado
Nelson: 12/100 · Phoenix: 15/100
Phoenix is 3 points higher.
Nelson: Tornado risk derived from NOAA SPC historical reports.
Phoenix: Tornado risk derived from NOAA SPC historical reports.
Hail
Nelson: 24/100 · Phoenix: 16/100
Nelson is 8 points higher.
Nelson: Hail risk derived from NOAA SPC historical reports.
Phoenix: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nelson: Unavailable · Phoenix: Unavailable
A score difference cannot be calculated without both sources.
Nelson: Storm surge model is not available for this location yet.
Phoenix: Storm surge model is not available for this location yet.
Wildfire
Nelson: 61/100 · Phoenix: 86/100
Phoenix is 25 points higher.
Nelson: Wildfire exposure derived from ingested fire potential tiles.
Phoenix: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Nelson: 26/100 · Phoenix: 19/100
Nelson is 7 points higher.
Nelson: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Phoenix: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.