City vs city
Arcata vs Santa Rosa, CA
Arcata and Santa Rosa are tied on overall score, with the biggest factor difference 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
Arcata: 22/100 · Santa Rosa: 22/100
No gap.
Flood
Arcata: 43/100 · Santa Rosa: 26/100
Arcata is 17 points higher.
Arcata: FEMA NFHL flood zones: 11 features intersect this tile.
Santa Rosa: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Arcata: 2/100 · Santa Rosa: 2/100
No gap.
Arcata: Wind exposure derived from ingested design wind / climatology tiles.
Santa Rosa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Arcata: 1/100 · Santa Rosa: 0/100
Arcata is 1 points higher.
Arcata: Lightning exposure derived from ingested climatology tiles.
Santa Rosa: Lightning exposure derived from ingested climatology tiles.
Tornado
Arcata: 0/100 · Santa Rosa: 8/100
Santa Rosa is 8 points higher.
Arcata: Tornado risk derived from NOAA SPC historical reports.
Santa Rosa: Tornado risk derived from NOAA SPC historical reports.
Hail
Arcata: 6/100 · Santa Rosa: 2/100
Arcata is 4 points higher.
Arcata: Hail risk derived from NOAA SPC historical reports.
Santa Rosa: Hail risk derived from NOAA SPC historical reports.
Storm surge
Arcata: Unavailable · Santa Rosa: Unavailable
A score difference cannot be calculated without both sources.
Arcata: Storm surge model is not available for this location yet.
Santa Rosa: Storm surge model is not available for this location yet.
Wildfire
Arcata: 53/100 · Santa Rosa: 72/100
Santa Rosa is 19 points higher.
Arcata: Wildfire exposure derived from ingested fire potential tiles.
Santa Rosa: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Arcata: 24/100 · Santa Rosa: 22/100
Arcata is 2 points higher.
Arcata: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Santa Rosa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.