City vs city
Dumbarton vs Glen Allen, VA
Dumbarton and Glen Allen are tied on overall score, with the biggest factor difference 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
Dumbarton: 40/100 · Glen Allen: 40/100
No gap.
Flood
Dumbarton: 21/100 · Glen Allen: 36/100
Glen Allen is 15 points higher.
Dumbarton: FEMA NFHL flood zones: 5 features intersect this tile.
Glen Allen: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Dumbarton: 20/100 · Glen Allen: 21/100
Glen Allen is 1 points higher.
Dumbarton: Wind exposure derived from ingested design wind / climatology tiles.
Glen Allen: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dumbarton: 46/100 · Glen Allen: 47/100
Glen Allen is 1 points higher.
Dumbarton: Lightning exposure derived from ingested climatology tiles.
Glen Allen: Lightning exposure derived from ingested climatology tiles.
Tornado
Dumbarton: 4/100 · Glen Allen: 15/100
Glen Allen is 11 points higher.
Dumbarton: Tornado risk derived from NOAA SPC historical reports.
Glen Allen: Tornado risk derived from NOAA SPC historical reports.
Hail
Dumbarton: 100/100 · Glen Allen: 78/100
Dumbarton is 22 points higher.
Dumbarton: Hail risk derived from NOAA SPC historical reports.
Glen Allen: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dumbarton: Unavailable · Glen Allen: Unavailable
A score difference cannot be calculated without both sources.
Dumbarton: Storm surge model is not available for this location yet.
Glen Allen: Storm surge model is not available for this location yet.
Wildfire
Dumbarton: 52/100 · Glen Allen: 51/100
Dumbarton is 1 points higher.
Dumbarton: Wildfire exposure derived from ingested fire potential tiles.
Glen Allen: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Dumbarton: 34/100 · Glen Allen: 33/100
Dumbarton is 1 points higher.
Dumbarton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Glen Allen: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.