City vs city
Port Royal vs Shell Point, SC
Port Royal and Shell Point 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
Port Royal: 45/100 · Shell Point: 45/100
No gap.
Flood
Port Royal: 92/100 · Shell Point: 92/100
No gap.
Port Royal: FEMA NFHL flood zones: 18 features intersect this tile.
Shell Point: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Port Royal: 45/100 · Shell Point: 45/100
No gap.
Port Royal: Wind exposure derived from ingested design wind / climatology tiles.
Shell Point: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Port Royal: 61/100 · Shell Point: 61/100
No gap.
Port Royal: Lightning exposure derived from ingested climatology tiles.
Shell Point: Lightning exposure derived from ingested climatology tiles.
Tornado
Port Royal: 4/100 · Shell Point: 4/100
No gap.
Port Royal: Tornado risk derived from NOAA SPC historical reports.
Shell Point: Tornado risk derived from NOAA SPC historical reports.
Hail
Port Royal: 24/100 · Shell Point: 24/100
No gap.
Port Royal: Hail risk derived from NOAA SPC historical reports.
Shell Point: Hail risk derived from NOAA SPC historical reports.
Storm surge
Port Royal: 99/100 · Shell Point: 99/100
No gap.
Port Royal: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Shell Point: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Port Royal: 10/100 · Shell Point: 10/100
No gap.
Port Royal: Wildfire exposure derived from ingested fire potential tiles.
Shell Point: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Port Royal: 21/100 · Shell Point: 21/100
No gap.
Port Royal: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Shell Point: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.