City vs city
Carnegie vs Castle Shannon, PA
Carnegie currently scores 6 points higher overall than Castle Shannon, 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
Carnegie: 41/100 · Castle Shannon: 35/100
Carnegie is 6 points higher.
Flood
Carnegie: 80/100 · Castle Shannon: 60/100
Carnegie is 20 points higher.
Carnegie: FEMA NFHL flood zones: 10 features intersect this tile.
Castle Shannon: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Carnegie: 18/100 · Castle Shannon: 18/100
No gap.
Carnegie: Wind exposure derived from ingested design wind / climatology tiles.
Castle Shannon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Carnegie: 25/100 · Castle Shannon: 23/100
Carnegie is 2 points higher.
Carnegie: Lightning exposure derived from ingested climatology tiles.
Castle Shannon: Lightning exposure derived from ingested climatology tiles.
Tornado
Carnegie: 4/100 · Castle Shannon: 8/100
Castle Shannon is 4 points higher.
Carnegie: Tornado risk derived from NOAA SPC historical reports.
Castle Shannon: Tornado risk derived from NOAA SPC historical reports.
Hail
Carnegie: 97/100 · Castle Shannon: 64/100
Carnegie is 33 points higher.
Carnegie: Hail risk derived from NOAA SPC historical reports.
Castle Shannon: Hail risk derived from NOAA SPC historical reports.
Storm surge
Carnegie: Unavailable · Castle Shannon: Unavailable
A score difference cannot be calculated without both sources.
Carnegie: Storm surge model is not available for this location yet.
Castle Shannon: Storm surge model is not available for this location yet.
Wildfire
Carnegie: 22/100 · Castle Shannon: 34/100
Castle Shannon is 12 points higher.
Carnegie: Wildfire exposure derived from ingested fire potential tiles.
Castle Shannon: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Carnegie: 42/100 · Castle Shannon: 39/100
Carnegie is 3 points higher.
Carnegie: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Castle Shannon: Air quality signal derived from the latest EPA AirNow combined AQI grid.