City vs city
Hidden Valley Lake vs Napa, CA
Hidden Valley Lake currently scores 1 points higher overall than Napa, 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 is a current EPA AirNow signal; 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
Hidden Valley Lake: 30/100 · Napa: 29/100
Hidden Valley Lake is 1 points higher.
Flood
Hidden Valley Lake: 26/100 · Napa: 43/100
Napa is 17 points higher.
Hidden Valley Lake: FEMA NFHL flood zones: 7 features intersect this tile.
Napa: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Hidden Valley Lake: 2/100 · Napa: 2/100
No gap.
Hidden Valley Lake: Wind exposure derived from ingested design wind / climatology tiles.
Napa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hidden Valley Lake: 0/100 · Napa: 0/100
No gap.
Hidden Valley Lake: Lightning exposure derived from ingested climatology tiles.
Napa: Lightning exposure derived from ingested climatology tiles.
Tornado
Hidden Valley Lake: 0/100 · Napa: 0/100
No gap.
Hidden Valley Lake: Tornado risk derived from NOAA SPC historical reports.
Napa: Tornado risk derived from NOAA SPC historical reports.
Hail
Hidden Valley Lake: 3/100 · Napa: 3/100
No gap.
Hidden Valley Lake: Hail risk derived from NOAA SPC historical reports.
Napa: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hidden Valley Lake: Unavailable · Napa: Unavailable
A score difference cannot be calculated without both sources.
Hidden Valley Lake: Storm surge model is not available for this location yet.
Napa: Storm surge model is not available for this location yet.
Wildfire
Hidden Valley Lake: 91/100 · Napa: 71/100
Hidden Valley Lake is 20 points higher.
Hidden Valley Lake: Wildfire exposure derived from ingested fire potential tiles.
Napa: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Hidden Valley Lake: 26/100 · Napa: 26/100
No gap.
Hidden Valley Lake: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Napa: Air quality signal derived from the latest EPA AirNow combined AQI grid.