City vs city
East Merrimack vs Rochester, NH
East Merrimack currently scores 2 points higher overall than Rochester, 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
East Merrimack: 34/100 · Rochester: 32/100
East Merrimack is 2 points higher.
Flood
East Merrimack: 100/100 · Rochester: 64/100
East Merrimack is 36 points higher.
East Merrimack: FEMA NFHL flood zones: 29 features intersect this tile.
Rochester: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
East Merrimack: 22/100 · Rochester: 21/100
East Merrimack is 1 points higher.
East Merrimack: Wind exposure derived from ingested design wind / climatology tiles.
Rochester: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
East Merrimack: 7/100 · Rochester: 7/100
No gap.
East Merrimack: Lightning exposure derived from ingested climatology tiles.
Rochester: Lightning exposure derived from ingested climatology tiles.
Tornado
East Merrimack: 8/100 · Rochester: 15/100
Rochester is 7 points higher.
East Merrimack: Tornado risk derived from NOAA SPC historical reports.
Rochester: Tornado risk derived from NOAA SPC historical reports.
Hail
East Merrimack: 26/100 · Rochester: 61/100
Rochester is 35 points higher.
East Merrimack: Hail risk derived from NOAA SPC historical reports.
Rochester: Hail risk derived from NOAA SPC historical reports.
Storm surge
East Merrimack: Unavailable · Rochester: Unavailable
A score difference cannot be calculated without both sources.
East Merrimack: Storm surge model is not available for this location yet.
Rochester: Storm surge model is not available for this location yet.
Wildfire
East Merrimack: 55/100 · Rochester: 36/100
East Merrimack is 19 points higher.
East Merrimack: Wildfire exposure derived from ingested fire potential tiles.
Rochester: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
East Merrimack: 20/100 · Rochester: 23/100
Rochester is 3 points higher.
East Merrimack: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rochester: Air quality signal derived from the latest EPA AirNow combined AQI grid.