City vs city
Arlington vs Portsmouth, VA
Arlington currently scores 1 points higher overall than Portsmouth, 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
Arlington: 43/100 · Portsmouth: 42/100
Arlington is 1 points higher.
Flood
Arlington: 25/100 · Portsmouth: 44/100
Portsmouth is 19 points higher.
Arlington: FEMA NFHL flood zones: 8 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 27 features intersect this tile.
Wind
Arlington: 21/100 · Portsmouth: 26/100
Portsmouth is 5 points higher.
Arlington: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Arlington: 39/100 · Portsmouth: 45/100
Portsmouth is 6 points higher.
Arlington: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Arlington: 27/100 · Portsmouth: 19/100
Arlington is 8 points higher.
Arlington: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Arlington: 100/100 · Portsmouth: 76/100
Arlington is 24 points higher.
Arlington: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Arlington: Unavailable · Portsmouth: 91/100
A score difference cannot be calculated without both sources.
Arlington: Storm surge model is not available for this location yet.
Portsmouth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Arlington: 45/100 · Portsmouth: 10/100
Arlington is 35 points higher.
Arlington: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Arlington: 41/100 · Portsmouth: 25/100
Arlington is 16 points higher.
Arlington: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Portsmouth: Air quality signal derived from the latest EPA AirNow combined AQI grid.