City vs city
Center Sandwich vs Portsmouth, NH
Portsmouth currently scores 14 points higher overall than Center Sandwich, 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 is a current EPA AirNow signal; 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
Center Sandwich: 27/100 · Portsmouth: 41/100
Portsmouth is 14 points higher.
Flood
Center Sandwich: 59/100 · Portsmouth: 73/100
Portsmouth is 14 points higher.
Center Sandwich: FEMA NFHL flood zones: 4 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Center Sandwich: 18/100 · Portsmouth: 23/100
Portsmouth is 5 points higher.
Center Sandwich: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Center Sandwich: 15/100 · Portsmouth: 6/100
Center Sandwich is 9 points higher.
Center Sandwich: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Center Sandwich: 0/100 · Portsmouth: 0/100
No gap.
Center Sandwich: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Center Sandwich: 3/100 · Portsmouth: 22/100
Portsmouth is 19 points higher.
Center Sandwich: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Center Sandwich: Unavailable · Portsmouth: 98/100
A score difference cannot be calculated without both sources.
Center Sandwich: Storm surge model is not available for this location yet.
Portsmouth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Center Sandwich: 45/100 · Portsmouth: 43/100
Center Sandwich is 2 points higher.
Center Sandwich: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Center Sandwich: 19/100 · Portsmouth: 23/100
Portsmouth is 4 points higher.
Center Sandwich: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Portsmouth: Air quality signal derived from the latest EPA AirNow combined AQI grid.