City vs city
Klondike Corner vs Portsmouth, NH
Portsmouth currently scores 10 points higher overall than Klondike Corner, 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
Klondike Corner: 31/100 · Portsmouth: 41/100
Portsmouth is 10 points higher.
Flood
Klondike Corner: 88/100 · Portsmouth: 73/100
Klondike Corner is 15 points higher.
Klondike Corner: FEMA NFHL flood zones: 8 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Klondike Corner: 21/100 · Portsmouth: 23/100
Portsmouth is 2 points higher.
Klondike Corner: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Klondike Corner: 8/100 · Portsmouth: 6/100
Klondike Corner is 2 points higher.
Klondike Corner: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Klondike Corner: 12/100 · Portsmouth: 0/100
Klondike Corner is 12 points higher.
Klondike Corner: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Klondike Corner: 11/100 · Portsmouth: 22/100
Portsmouth is 11 points higher.
Klondike Corner: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Klondike Corner: Unavailable · Portsmouth: 98/100
A score difference cannot be calculated without both sources.
Klondike Corner: Storm surge model is not available for this location yet.
Portsmouth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Klondike Corner: 53/100 · Portsmouth: 43/100
Klondike Corner is 10 points higher.
Klondike Corner: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Klondike Corner: 24/100 · Portsmouth: 23/100
Klondike Corner is 1 points higher.
Klondike Corner: 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.