City vs city
Pomona vs Walnut, CA
Pomona currently scores 2 points higher overall than Walnut, 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
Pomona: 23/100 · Walnut: 21/100
Pomona is 2 points higher.
Flood
Pomona: 26/100 · Walnut: 30/100
Walnut is 4 points higher.
Pomona: FEMA NFHL flood zones: 6 features intersect this tile.
Walnut: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Pomona: 5/100 · Walnut: 5/100
No gap.
Pomona: Wind exposure derived from ingested design wind / climatology tiles.
Walnut: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Pomona: 1/100 · Walnut: 1/100
No gap.
Pomona: Lightning exposure derived from ingested climatology tiles.
Walnut: Lightning exposure derived from ingested climatology tiles.
Tornado
Pomona: 0/100 · Walnut: 8/100
Walnut is 8 points higher.
Pomona: Tornado risk derived from NOAA SPC historical reports.
Walnut: Tornado risk derived from NOAA SPC historical reports.
Hail
Pomona: 2/100 · Walnut: 6/100
Walnut is 4 points higher.
Pomona: Hail risk derived from NOAA SPC historical reports.
Walnut: Hail risk derived from NOAA SPC historical reports.
Storm surge
Pomona: Unavailable · Walnut: Unavailable
A score difference cannot be calculated without both sources.
Pomona: Storm surge model is not available for this location yet.
Walnut: Storm surge model is not available for this location yet.
Wildfire
Pomona: 78/100 · Walnut: 76/100
Pomona is 2 points higher.
Pomona: Wildfire exposure derived from ingested fire potential tiles.
Walnut: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Pomona: 26/100 · Walnut: 21/100
Pomona is 5 points higher.
Pomona: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Walnut: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.