City vs city
Brock Hall vs Columbia, MD
Brock Hall currently scores 5 points higher overall than Columbia, 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 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
Brock Hall: 38/100 · Columbia: 33/100
Brock Hall is 5 points higher.
Flood
Brock Hall: 27/100 · Columbia: 22/100
Brock Hall is 5 points higher.
Brock Hall: FEMA NFHL flood zones: 6 features intersect this tile.
Columbia: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Brock Hall: 21/100 · Columbia: 21/100
No gap.
Brock Hall: Wind exposure derived from ingested design wind / climatology tiles.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Brock Hall: 40/100 · Columbia: 38/100
Brock Hall is 2 points higher.
Brock Hall: Lightning exposure derived from ingested climatology tiles.
Columbia: Lightning exposure derived from ingested climatology tiles.
Tornado
Brock Hall: 15/100 · Columbia: 15/100
No gap.
Brock Hall: Tornado risk derived from NOAA SPC historical reports.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Hail
Brock Hall: 29/100 · Columbia: 58/100
Columbia is 29 points higher.
Brock Hall: Hail risk derived from NOAA SPC historical reports.
Columbia: Hail risk derived from NOAA SPC historical reports.
Storm surge
Brock Hall: 80/100 · Columbia: Unavailable
A score difference cannot be calculated without both sources.
Brock Hall: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Columbia: Storm surge model is not available for this location yet.
Wildfire
Brock Hall: 47/100 · Columbia: 38/100
Brock Hall is 9 points higher.
Brock Hall: Wildfire exposure derived from ingested fire potential tiles.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Brock Hall: 44/100 · Columbia: 42/100
Brock Hall is 2 points higher.
Brock Hall: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.