City vs city
Richmond vs South Riding, VA
Richmond currently scores 20 points higher overall than South Riding, 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
Richmond: 54/100 · South Riding: 34/100
Richmond is 20 points higher.
Flood
Richmond: 29/100 · South Riding: 23/100
Richmond is 6 points higher.
Richmond: FEMA NFHL flood zones: 8 features intersect this tile.
South Riding: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Richmond: 21/100 · South Riding: 20/100
Richmond is 1 points higher.
Richmond: Wind exposure derived from ingested design wind / climatology tiles.
South Riding: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Richmond: 47/100 · South Riding: 35/100
Richmond is 12 points higher.
Richmond: Lightning exposure derived from ingested climatology tiles.
South Riding: Lightning exposure derived from ingested climatology tiles.
Tornado
Richmond: 100/100 · South Riding: 0/100
Richmond is 100 points higher.
Richmond: Tornado risk derived from NOAA SPC historical reports.
South Riding: Tornado risk derived from NOAA SPC historical reports.
Hail
Richmond: 93/100 · South Riding: 48/100
Richmond is 45 points higher.
Richmond: Hail risk derived from NOAA SPC historical reports.
South Riding: Hail risk derived from NOAA SPC historical reports.
Storm surge
Richmond: Unavailable · South Riding: Unavailable
A score difference cannot be calculated without both sources.
Richmond: Storm surge model is not available for this location yet.
South Riding: Storm surge model is not available for this location yet.
Wildfire
Richmond: 53/100 · South Riding: 35/100
Richmond is 18 points higher.
Richmond: Wildfire exposure derived from ingested fire potential tiles.
South Riding: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Richmond: 33/100 · South Riding: 40/100
South Riding is 7 points higher.
Richmond: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Riding: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.