City vs city
Avalon vs Costa Mesa, CA
Costa Mesa currently scores 21 points higher overall than Avalon, 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
Avalon: 10/100 · Costa Mesa: 31/100
Costa Mesa is 21 points higher.
Flood
Avalon: 0/100 · Costa Mesa: 33/100
Costa Mesa is 33 points higher.
Avalon: FEMA NFHL flood zones: 3 features intersect this tile.
Costa Mesa: FEMA NFHL flood zones: 15 features intersect this tile.
Wind
Avalon: 4/100 · Costa Mesa: 5/100
Costa Mesa is 1 points higher.
Avalon: Wind exposure derived from ingested design wind / climatology tiles.
Costa Mesa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Avalon: 0/100 · Costa Mesa: 0/100
No gap.
Avalon: Lightning exposure derived from ingested climatology tiles.
Costa Mesa: Lightning exposure derived from ingested climatology tiles.
Tornado
Avalon: 0/100 · Costa Mesa: 54/100
Costa Mesa is 54 points higher.
Avalon: Tornado risk derived from NOAA SPC historical reports.
Costa Mesa: Tornado risk derived from NOAA SPC historical reports.
Hail
Avalon: 0/100 · Costa Mesa: 8/100
Costa Mesa is 8 points higher.
Avalon: Hail risk derived from NOAA SPC historical reports.
Costa Mesa: Hail risk derived from NOAA SPC historical reports.
Storm surge
Avalon: Unavailable · Costa Mesa: Unavailable
A score difference cannot be calculated without both sources.
Avalon: Storm surge model is not available for this location yet.
Costa Mesa: Storm surge model is not available for this location yet.
Wildfire
Avalon: 11/100 · Costa Mesa: 59/100
Costa Mesa is 48 points higher.
Avalon: Wildfire exposure derived from ingested fire potential tiles.
Costa Mesa: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Avalon: 25/100 · Costa Mesa: 28/100
Costa Mesa is 3 points higher.
Avalon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Costa Mesa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.