City vs city
Mountain Lakes vs Portsmouth, NH
Portsmouth currently scores 17 points higher overall than Mountain Lakes, 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 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
Mountain Lakes: 24/100 · Portsmouth: 41/100
Portsmouth is 17 points higher.
Flood
Mountain Lakes: 55/100 · Portsmouth: 73/100
Portsmouth is 18 points higher.
Mountain Lakes: FEMA NFHL flood zones: 4 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Mountain Lakes: 17/100 · Portsmouth: 23/100
Portsmouth is 6 points higher.
Mountain Lakes: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mountain Lakes: 15/100 · Portsmouth: 6/100
Mountain Lakes is 9 points higher.
Mountain Lakes: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Mountain Lakes: 8/100 · Portsmouth: 0/100
Mountain Lakes is 8 points higher.
Mountain Lakes: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Mountain Lakes: 10/100 · Portsmouth: 22/100
Portsmouth is 12 points higher.
Mountain Lakes: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mountain Lakes: Unavailable · Portsmouth: 98/100
A score difference cannot be calculated without both sources.
Mountain Lakes: Storm surge model is not available for this location yet.
Portsmouth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Mountain Lakes: 43/100 · Portsmouth: 43/100
No gap.
Mountain Lakes: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Mountain Lakes: 21/100 · Portsmouth: 23/100
Portsmouth is 2 points higher.
Mountain Lakes: 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.