City vs city
Atherton vs Mountain View, CA
Mountain View currently scores 6 points higher overall than Atherton, 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
Atherton: 23/100 · Mountain View: 29/100
Mountain View is 6 points higher.
Flood
Atherton: 34/100 · Mountain View: 52/100
Mountain View is 18 points higher.
Atherton: FEMA NFHL flood zones: 10 features intersect this tile.
Mountain View: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Atherton: 2/100 · Mountain View: 2/100
No gap.
Atherton: Wind exposure derived from ingested design wind / climatology tiles.
Mountain View: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Atherton: 0/100 · Mountain View: 0/100
No gap.
Atherton: Lightning exposure derived from ingested climatology tiles.
Mountain View: Lightning exposure derived from ingested climatology tiles.
Tornado
Atherton: 0/100 · Mountain View: 19/100
Mountain View is 19 points higher.
Atherton: Tornado risk derived from NOAA SPC historical reports.
Mountain View: Tornado risk derived from NOAA SPC historical reports.
Hail
Atherton: 3/100 · Mountain View: 11/100
Mountain View is 8 points higher.
Atherton: Hail risk derived from NOAA SPC historical reports.
Mountain View: Hail risk derived from NOAA SPC historical reports.
Storm surge
Atherton: Unavailable · Mountain View: Unavailable
A score difference cannot be calculated without both sources.
Atherton: Storm surge model is not available for this location yet.
Mountain View: Storm surge model is not available for this location yet.
Wildfire
Atherton: 56/100 · Mountain View: 63/100
Mountain View is 7 points higher.
Atherton: Wildfire exposure derived from ingested fire potential tiles.
Mountain View: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Atherton: 22/100 · Mountain View: 26/100
Mountain View is 4 points higher.
Atherton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mountain View: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.