City vs city
Nelson vs Picture Rocks, AZ
Picture Rocks currently scores 2 points higher overall than Nelson, 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
Nelson: 38/100 · Picture Rocks: 40/100
Picture Rocks is 2 points higher.
Flood
Nelson: 100/100 · Picture Rocks: 93/100
Nelson is 7 points higher.
Nelson: FEMA NFHL flood zones: 25 features intersect this tile.
Picture Rocks: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Nelson: 12/100 · Picture Rocks: 12/100
No gap.
Nelson: Wind exposure derived from ingested design wind / climatology tiles.
Picture Rocks: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nelson: 34/100 · Picture Rocks: 36/100
Picture Rocks is 2 points higher.
Nelson: Lightning exposure derived from ingested climatology tiles.
Picture Rocks: Lightning exposure derived from ingested climatology tiles.
Tornado
Nelson: 12/100 · Picture Rocks: 0/100
Nelson is 12 points higher.
Nelson: Tornado risk derived from NOAA SPC historical reports.
Picture Rocks: Tornado risk derived from NOAA SPC historical reports.
Hail
Nelson: 24/100 · Picture Rocks: 12/100
Nelson is 12 points higher.
Nelson: Hail risk derived from NOAA SPC historical reports.
Picture Rocks: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nelson: Unavailable · Picture Rocks: Unavailable
A score difference cannot be calculated without both sources.
Nelson: Storm surge model is not available for this location yet.
Picture Rocks: Storm surge model is not available for this location yet.
Wildfire
Nelson: 61/100 · Picture Rocks: 58/100
Nelson is 3 points higher.
Nelson: Wildfire exposure derived from ingested fire potential tiles.
Picture Rocks: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Nelson: 26/100 · Picture Rocks: 26/100
No gap.
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.
Picture Rocks: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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