City vs city
Fort Belvoir vs Mount Vernon, VA
Mount Vernon currently scores 3 points higher overall than Fort Belvoir, 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
Fort Belvoir: 40/100 · Mount Vernon: 43/100
Mount Vernon is 3 points higher.
Flood
Fort Belvoir: 32/100 · Mount Vernon: 16/100
Fort Belvoir is 16 points higher.
Fort Belvoir: FEMA NFHL flood zones: 6 features intersect this tile.
Mount Vernon: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Fort Belvoir: 21/100 · Mount Vernon: 21/100
No gap.
Fort Belvoir: Wind exposure derived from ingested design wind / climatology tiles.
Mount Vernon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fort Belvoir: 40/100 · Mount Vernon: 40/100
No gap.
Fort Belvoir: Lightning exposure derived from ingested climatology tiles.
Mount Vernon: Lightning exposure derived from ingested climatology tiles.
Tornado
Fort Belvoir: 23/100 · Mount Vernon: 31/100
Mount Vernon is 8 points higher.
Fort Belvoir: Tornado risk derived from NOAA SPC historical reports.
Mount Vernon: Tornado risk derived from NOAA SPC historical reports.
Hail
Fort Belvoir: 78/100 · Mount Vernon: 55/100
Fort Belvoir is 23 points higher.
Fort Belvoir: Hail risk derived from NOAA SPC historical reports.
Mount Vernon: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fort Belvoir: Unavailable · Mount Vernon: 87/100
A score difference cannot be calculated without both sources.
Fort Belvoir: Storm surge model is not available for this location yet.
Mount Vernon: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Fort Belvoir: 46/100 · Mount Vernon: 49/100
Mount Vernon is 3 points higher.
Fort Belvoir: Wildfire exposure derived from ingested fire potential tiles.
Mount Vernon: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Fort Belvoir: 40/100 · Mount Vernon: 42/100
Mount Vernon is 2 points higher.
Fort Belvoir: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mount Vernon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.