City vs city
Columbia vs Herald Harbor, MD
Herald Harbor currently scores 1 points higher overall than Columbia, with the largest gap in wildfire.
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: 35/100 · Herald Harbor: 36/100
Herald Harbor is 1 points higher.
Flood
Columbia: 24/100 · Herald Harbor: 32/100
Herald Harbor is 8 points higher.
Columbia: FEMA NFHL flood zones: 7 features intersect this tile.
Herald Harbor: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Columbia: 21/100 · Herald Harbor: 21/100
No gap.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Herald Harbor: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 39/100 · Herald Harbor: 39/100
No gap.
Columbia: Lightning exposure derived from ingested climatology tiles.
Herald Harbor: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 19/100 · Herald Harbor: 31/100
Herald Harbor is 12 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Herald Harbor: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 58/100 · Herald Harbor: 28/100
Columbia is 30 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Herald Harbor: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Herald Harbor: 92/100
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Herald Harbor: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Columbia: 40/100 · Herald Harbor: 3/100
Columbia is 37 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Herald Harbor: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Columbia: 42/100 · Herald Harbor: 42/100
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.
Herald Harbor: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.