City vs city
Nashua vs Seabrook, NH
Seabrook currently scores 5 points higher overall than Nashua, 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
Nashua: 34/100 · Seabrook: 39/100
Seabrook is 5 points higher.
Flood
Nashua: 77/100 · Seabrook: 40/100
Nashua is 37 points higher.
Nashua: FEMA NFHL flood zones: 26 features intersect this tile.
Seabrook: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Nashua: 23/100 · Seabrook: 24/100
Seabrook is 1 points higher.
Nashua: Wind exposure derived from ingested design wind / climatology tiles.
Seabrook: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nashua: 7/100 · Seabrook: 8/100
Seabrook is 1 points higher.
Nashua: Lightning exposure derived from ingested climatology tiles.
Seabrook: Lightning exposure derived from ingested climatology tiles.
Tornado
Nashua: 15/100 · Seabrook: 0/100
Nashua is 15 points higher.
Nashua: Tornado risk derived from NOAA SPC historical reports.
Seabrook: Tornado risk derived from NOAA SPC historical reports.
Hail
Nashua: 51/100 · Seabrook: 40/100
Nashua is 11 points higher.
Nashua: Hail risk derived from NOAA SPC historical reports.
Seabrook: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nashua: Unavailable · Seabrook: 98/100
A score difference cannot be calculated without both sources.
Nashua: Storm surge model is not available for this location yet.
Seabrook: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Nashua: 42/100 · Seabrook: 44/100
Seabrook is 2 points higher.
Nashua: Wildfire exposure derived from ingested fire potential tiles.
Seabrook: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Nashua: 21/100 · Seabrook: 22/100
Seabrook is 1 points higher.
Nashua: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Seabrook: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.