City vs city
Dahlgren vs Roanoke, VA
Roanoke currently scores 1 points higher overall than Dahlgren, 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
Dahlgren: 38/100 · Roanoke: 39/100
Roanoke is 1 points higher.
Flood
Dahlgren: 20/100 · Roanoke: 24/100
Roanoke is 4 points higher.
Dahlgren: FEMA NFHL flood zones: 6 features intersect this tile.
Roanoke: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Dahlgren: 21/100 · Roanoke: 17/100
Dahlgren is 4 points higher.
Dahlgren: Wind exposure derived from ingested design wind / climatology tiles.
Roanoke: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dahlgren: 44/100 · Roanoke: 30/100
Dahlgren is 14 points higher.
Dahlgren: Lightning exposure derived from ingested climatology tiles.
Roanoke: Lightning exposure derived from ingested climatology tiles.
Tornado
Dahlgren: 23/100 · Roanoke: 19/100
Dahlgren is 4 points higher.
Dahlgren: Tornado risk derived from NOAA SPC historical reports.
Roanoke: Tornado risk derived from NOAA SPC historical reports.
Hail
Dahlgren: 16/100 · Roanoke: 100/100
Roanoke is 84 points higher.
Dahlgren: Hail risk derived from NOAA SPC historical reports.
Roanoke: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dahlgren: 92/100 · Roanoke: Unavailable
A score difference cannot be calculated without both sources.
Dahlgren: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Roanoke: Storm surge model is not available for this location yet.
Wildfire
Dahlgren: 48/100 · Roanoke: 51/100
Roanoke is 3 points higher.
Dahlgren: Wildfire exposure derived from ingested fire potential tiles.
Roanoke: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Dahlgren: 42/100 · Roanoke: 35/100
Dahlgren is 7 points higher.
Dahlgren: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Roanoke: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.