City vs city
Roslyn vs Willow Grove, PA
Roslyn and Willow Grove are tied on overall score, with the biggest factor difference 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
Roslyn: 42/100 · Willow Grove: 42/100
No gap.
Flood
Roslyn: 74/100 · Willow Grove: 74/100
No gap.
Roslyn: FEMA NFHL flood zones: 10 features intersect this tile.
Willow Grove: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Roslyn: 22/100 · Willow Grove: 22/100
No gap.
Roslyn: Wind exposure derived from ingested design wind / climatology tiles.
Willow Grove: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Roslyn: 33/100 · Willow Grove: 33/100
No gap.
Roslyn: Lightning exposure derived from ingested climatology tiles.
Willow Grove: Lightning exposure derived from ingested climatology tiles.
Tornado
Roslyn: 0/100 · Willow Grove: 0/100
No gap.
Roslyn: Tornado risk derived from NOAA SPC historical reports.
Willow Grove: Tornado risk derived from NOAA SPC historical reports.
Hail
Roslyn: 35/100 · Willow Grove: 35/100
No gap.
Roslyn: Hail risk derived from NOAA SPC historical reports.
Willow Grove: Hail risk derived from NOAA SPC historical reports.
Storm surge
Roslyn: Unavailable · Willow Grove: Unavailable
A score difference cannot be calculated without both sources.
Roslyn: Storm surge model is not available for this location yet.
Willow Grove: Storm surge model is not available for this location yet.
Wildfire
Roslyn: 49/100 · Willow Grove: 49/100
No gap.
Roslyn: Wildfire exposure derived from ingested fire potential tiles.
Willow Grove: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Roslyn: 40/100 · Willow Grove: 40/100
No gap.
Roslyn: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Willow Grove: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.