City vs city
Arlington vs Union Mill, VA
Arlington currently scores 10 points higher overall than Union Mill, with the largest gap in hail.
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
Arlington: 43/100 · Union Mill: 33/100
Arlington is 10 points higher.
Flood
Arlington: 25/100 · Union Mill: 33/100
Union Mill is 8 points higher.
Arlington: FEMA NFHL flood zones: 8 features intersect this tile.
Union Mill: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Arlington: 21/100 · Union Mill: 20/100
Arlington is 1 points higher.
Arlington: Wind exposure derived from ingested design wind / climatology tiles.
Union Mill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Arlington: 39/100 · Union Mill: 40/100
Union Mill is 1 points higher.
Arlington: Lightning exposure derived from ingested climatology tiles.
Union Mill: Lightning exposure derived from ingested climatology tiles.
Tornado
Arlington: 27/100 · Union Mill: 27/100
No gap.
Arlington: Tornado risk derived from NOAA SPC historical reports.
Union Mill: Tornado risk derived from NOAA SPC historical reports.
Hail
Arlington: 100/100 · Union Mill: 44/100
Arlington is 56 points higher.
Arlington: Hail risk derived from NOAA SPC historical reports.
Union Mill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Arlington: Unavailable · Union Mill: Unavailable
A score difference cannot be calculated without both sources.
Arlington: Storm surge model is not available for this location yet.
Union Mill: Storm surge model is not available for this location yet.
Wildfire
Arlington: 45/100 · Union Mill: 29/100
Arlington is 16 points higher.
Arlington: Wildfire exposure derived from ingested fire potential tiles.
Union Mill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Arlington: 41/100 · Union Mill: 40/100
Arlington is 1 points higher.
Arlington: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Union Mill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.