City vs city
Harwich Port vs West Chatham, MA
West Chatham currently scores 16 points higher overall than Harwich Port, with the largest gap 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
Harwich Port: 26/100 · West Chatham: 42/100
West Chatham is 16 points higher.
Flood
Harwich Port: 29/100 · West Chatham: 100/100
West Chatham is 71 points higher.
Harwich Port: FEMA NFHL flood zones: 8 features intersect this tile.
West Chatham: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Harwich Port: 38/100 · West Chatham: 39/100
West Chatham is 1 points higher.
Harwich Port: Wind exposure derived from ingested design wind / climatology tiles.
West Chatham: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harwich Port: 8/100 · West Chatham: 7/100
Harwich Port is 1 points higher.
Harwich Port: Lightning exposure derived from ingested climatology tiles.
West Chatham: Lightning exposure derived from ingested climatology tiles.
Tornado
Harwich Port: 8/100 · West Chatham: 0/100
Harwich Port is 8 points higher.
Harwich Port: Tornado risk derived from NOAA SPC historical reports.
West Chatham: Tornado risk derived from NOAA SPC historical reports.
Hail
Harwich Port: 6/100 · West Chatham: 2/100
Harwich Port is 4 points higher.
Harwich Port: Hail risk derived from NOAA SPC historical reports.
West Chatham: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harwich Port: 95/100 · West Chatham: 92/100
Harwich Port is 3 points higher.
Harwich Port: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
West Chatham: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Harwich Port: 5/100 · West Chatham: 36/100
West Chatham is 31 points higher.
Harwich Port: Wildfire exposure derived from ingested fire potential tiles.
West Chatham: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harwich Port: 21/100 · West Chatham: 21/100
No gap.
Harwich Port: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
West Chatham: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.