City vs city
Chappaqua vs Ossining, NY
Ossining currently scores 4 points higher overall than Chappaqua, 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 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
Chappaqua: 34/100 · Ossining: 38/100
Ossining is 4 points higher.
Flood
Chappaqua: 34/100 · Ossining: 50/100
Ossining is 16 points higher.
Chappaqua: FEMA NFHL flood zones: 7 features intersect this tile.
Ossining: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Chappaqua: 23/100 · Ossining: 22/100
Chappaqua is 1 points higher.
Chappaqua: Wind exposure derived from ingested design wind / climatology tiles.
Ossining: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chappaqua: 21/100 · Ossining: 22/100
Ossining is 1 points higher.
Chappaqua: Lightning exposure derived from ingested climatology tiles.
Ossining: Lightning exposure derived from ingested climatology tiles.
Tornado
Chappaqua: 0/100 · Ossining: 4/100
Ossining is 4 points higher.
Chappaqua: Tornado risk derived from NOAA SPC historical reports.
Ossining: Tornado risk derived from NOAA SPC historical reports.
Hail
Chappaqua: 20/100 · Ossining: 12/100
Chappaqua is 8 points higher.
Chappaqua: Hail risk derived from NOAA SPC historical reports.
Ossining: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chappaqua: Unavailable · Ossining: 94/100
A score difference cannot be calculated without both sources.
Chappaqua: Storm surge model is not available for this location yet.
Ossining: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Chappaqua: 78/100 · Ossining: 71/100
Chappaqua is 7 points higher.
Chappaqua: Wildfire exposure derived from ingested fire potential tiles.
Ossining: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chappaqua: 27/100 · Ossining: 28/100
Ossining is 1 points higher.
Chappaqua: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Ossining: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.