City vs city
Columbia vs Hallam, PA
Hallam currently scores 4 points higher overall than Columbia, with the largest gap in flood.
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
Columbia: 37/100 · Hallam: 41/100
Hallam is 4 points higher.
Flood
Columbia: 64/100 · Hallam: 83/100
Hallam is 19 points higher.
Columbia: FEMA NFHL flood zones: 2 features intersect this tile.
Hallam: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Columbia: 21/100 · Hallam: 21/100
No gap.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Hallam: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 45/100 · Hallam: 42/100
Columbia is 3 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Hallam: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 15/100 · Hallam: 31/100
Hallam is 16 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Hallam: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 34/100 · Hallam: 36/100
Hallam is 2 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Hallam: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Hallam: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Hallam: Storm surge model is not available for this location yet.
Wildfire
Columbia: 38/100 · Hallam: 29/100
Columbia is 9 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Hallam: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Columbia: 44/100 · Hallam: 44/100
No gap.
Columbia: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Hallam: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.