City vs city
Manchester vs Seabrook, NH
Seabrook currently scores 6 points higher overall than Manchester, 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
Manchester: 33/100 · Seabrook: 39/100
Seabrook is 6 points higher.
Flood
Manchester: 65/100 · Seabrook: 40/100
Manchester is 25 points higher.
Manchester: FEMA NFHL flood zones: 18 features intersect this tile.
Seabrook: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Manchester: 22/100 · Seabrook: 24/100
Seabrook is 2 points higher.
Manchester: Wind exposure derived from ingested design wind / climatology tiles.
Seabrook: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Manchester: 8/100 · Seabrook: 8/100
No gap.
Manchester: Lightning exposure derived from ingested climatology tiles.
Seabrook: Lightning exposure derived from ingested climatology tiles.
Tornado
Manchester: 0/100 · Seabrook: 0/100
No gap.
Manchester: Tornado risk derived from NOAA SPC historical reports.
Seabrook: Tornado risk derived from NOAA SPC historical reports.
Hail
Manchester: 27/100 · Seabrook: 40/100
Seabrook is 13 points higher.
Manchester: Hail risk derived from NOAA SPC historical reports.
Seabrook: Hail risk derived from NOAA SPC historical reports.
Storm surge
Manchester: Unavailable · Seabrook: 98/100
A score difference cannot be calculated without both sources.
Manchester: Storm surge model is not available for this location yet.
Seabrook: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Manchester: 55/100 · Seabrook: 44/100
Manchester is 11 points higher.
Manchester: Wildfire exposure derived from ingested fire potential tiles.
Seabrook: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Manchester: 20/100 · Seabrook: 22/100
Seabrook is 2 points higher.
Manchester: 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.