City vs city
Alta Sierra vs Cool, CA
Cool currently scores 2 points higher overall than Alta Sierra, 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
Alta Sierra: 35/100 · Cool: 37/100
Cool is 2 points higher.
Flood
Alta Sierra: 26/100 · Cool: 30/100
Cool is 4 points higher.
Alta Sierra: FEMA NFHL flood zones: 1 features intersect this tile.
Cool: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Alta Sierra: 4/100 · Cool: 4/100
No gap.
Alta Sierra: Wind exposure derived from ingested design wind / climatology tiles.
Cool: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alta Sierra: 2/100 · Cool: 2/100
No gap.
Alta Sierra: Lightning exposure derived from ingested climatology tiles.
Cool: Lightning exposure derived from ingested climatology tiles.
Tornado
Alta Sierra: 0/100 · Cool: 0/100
No gap.
Alta Sierra: Tornado risk derived from NOAA SPC historical reports.
Cool: Tornado risk derived from NOAA SPC historical reports.
Hail
Alta Sierra: 1/100 · Cool: 1/100
No gap.
Alta Sierra: Hail risk derived from NOAA SPC historical reports.
Cool: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alta Sierra: Unavailable · Cool: Unavailable
A score difference cannot be calculated without both sources.
Alta Sierra: Storm surge model is not available for this location yet.
Cool: Storm surge model is not available for this location yet.
Wildfire
Alta Sierra: 77/100 · Cool: 87/100
Cool is 10 points higher.
Alta Sierra: Wildfire exposure derived from ingested fire potential tiles.
Cool: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alta Sierra: 100/100 · Cool: 95/100
Alta Sierra is 5 points higher.
Alta Sierra: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Cool: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.