City vs city
Castle Shannon vs Gastonville, PA
Castle Shannon currently scores 2 points higher overall than Gastonville, 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
Castle Shannon: 35/100 · Gastonville: 33/100
Castle Shannon is 2 points higher.
Flood
Castle Shannon: 60/100 · Gastonville: 60/100
No gap.
Castle Shannon: FEMA NFHL flood zones: 4 features intersect this tile.
Gastonville: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Castle Shannon: 18/100 · Gastonville: 18/100
No gap.
Castle Shannon: Wind exposure derived from ingested design wind / climatology tiles.
Gastonville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Castle Shannon: 23/100 · Gastonville: 21/100
Castle Shannon is 2 points higher.
Castle Shannon: Lightning exposure derived from ingested climatology tiles.
Gastonville: Lightning exposure derived from ingested climatology tiles.
Tornado
Castle Shannon: 8/100 · Gastonville: 27/100
Gastonville is 19 points higher.
Castle Shannon: Tornado risk derived from NOAA SPC historical reports.
Gastonville: Tornado risk derived from NOAA SPC historical reports.
Hail
Castle Shannon: 64/100 · Gastonville: 44/100
Castle Shannon is 20 points higher.
Castle Shannon: Hail risk derived from NOAA SPC historical reports.
Gastonville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Castle Shannon: Unavailable · Gastonville: Unavailable
A score difference cannot be calculated without both sources.
Castle Shannon: Storm surge model is not available for this location yet.
Gastonville: Storm surge model is not available for this location yet.
Wildfire
Castle Shannon: 34/100 · Gastonville: 22/100
Castle Shannon is 12 points higher.
Castle Shannon: Wildfire exposure derived from ingested fire potential tiles.
Gastonville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Castle Shannon: 39/100 · Gastonville: 38/100
Castle Shannon is 1 points higher.
Castle Shannon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Gastonville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.