City vs city
Perry Hall vs White Marsh, MD
White Marsh currently scores 11 points higher overall than Perry Hall, 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
Perry Hall: 30/100 · White Marsh: 41/100
White Marsh is 11 points higher.
Flood
Perry Hall: 21/100 · White Marsh: 25/100
White Marsh is 4 points higher.
Perry Hall: FEMA NFHL flood zones: 6 features intersect this tile.
White Marsh: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Perry Hall: 21/100 · White Marsh: 21/100
No gap.
Perry Hall: Wind exposure derived from ingested design wind / climatology tiles.
White Marsh: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Perry Hall: 40/100 · White Marsh: 39/100
Perry Hall is 1 points higher.
Perry Hall: Lightning exposure derived from ingested climatology tiles.
White Marsh: Lightning exposure derived from ingested climatology tiles.
Tornado
Perry Hall: 23/100 · White Marsh: 15/100
Perry Hall is 8 points higher.
Perry Hall: Tornado risk derived from NOAA SPC historical reports.
White Marsh: Tornado risk derived from NOAA SPC historical reports.
Hail
Perry Hall: 24/100 · White Marsh: 86/100
White Marsh is 62 points higher.
Perry Hall: Hail risk derived from NOAA SPC historical reports.
White Marsh: Hail risk derived from NOAA SPC historical reports.
Storm surge
Perry Hall: Unavailable · White Marsh: 78/100
A score difference cannot be calculated without both sources.
Perry Hall: Storm surge model is not available for this location yet.
White Marsh: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Perry Hall: 39/100 · White Marsh: 28/100
Perry Hall is 11 points higher.
Perry Hall: Wildfire exposure derived from ingested fire potential tiles.
White Marsh: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Perry Hall: 42/100 · White Marsh: 39/100
Perry Hall is 3 points higher.
Perry Hall: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
White Marsh: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.