City vs city
Onset vs Pembroke, MA
Onset currently scores 8 points higher overall than Pembroke, with the largest gap in wildfire.
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
Onset: 37/100 · Pembroke: 29/100
Onset is 8 points higher.
Flood
Onset: 58/100 · Pembroke: 44/100
Onset is 14 points higher.
Onset: FEMA NFHL flood zones: 19 features intersect this tile.
Pembroke: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Onset: 36/100 · Pembroke: 32/100
Onset is 4 points higher.
Onset: Wind exposure derived from ingested design wind / climatology tiles.
Pembroke: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Onset: 13/100 · Pembroke: 12/100
Onset is 1 points higher.
Onset: Lightning exposure derived from ingested climatology tiles.
Pembroke: Lightning exposure derived from ingested climatology tiles.
Tornado
Onset: 0/100 · Pembroke: 8/100
Pembroke is 8 points higher.
Onset: Tornado risk derived from NOAA SPC historical reports.
Pembroke: Tornado risk derived from NOAA SPC historical reports.
Hail
Onset: 13/100 · Pembroke: 24/100
Pembroke is 11 points higher.
Onset: Hail risk derived from NOAA SPC historical reports.
Pembroke: Hail risk derived from NOAA SPC historical reports.
Storm surge
Onset: 99/100 · Pembroke: Unavailable
A score difference cannot be calculated without both sources.
Onset: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Pembroke: Storm surge model is not available for this location yet.
Wildfire
Onset: 12/100 · Pembroke: 58/100
Pembroke is 46 points higher.
Onset: Wildfire exposure derived from ingested fire potential tiles.
Pembroke: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Onset: 27/100 · Pembroke: 27/100
No gap.
Onset: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Pembroke: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.