City vs city
Black Sands vs Waipahu, HI
Black Sands currently scores 6 points higher overall than Waipahu, 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
Black Sands: 32/100 · Waipahu: 26/100
Black Sands is 6 points higher.
Flood
Black Sands: 54/100 · Waipahu: 31/100
Black Sands is 23 points higher.
Black Sands: FEMA NFHL flood zones: 4 features intersect this tile.
Waipahu: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Black Sands: 40/100 · Waipahu: 44/100
Waipahu is 4 points higher.
Black Sands: Wind exposure derived from ingested design wind / climatology tiles.
Waipahu: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Black Sands: 2/100 · Waipahu: 2/100
No gap.
Black Sands: Lightning exposure derived from ingested climatology tiles.
Waipahu: Lightning exposure derived from ingested climatology tiles.
Tornado
Black Sands: Unavailable · Waipahu: Unavailable
A score difference cannot be calculated without both sources.
Black Sands: Tornado model is not available for this location yet.
Waipahu: Tornado model is not available for this location yet.
Hail
Black Sands: Unavailable · Waipahu: Unavailable
A score difference cannot be calculated without both sources.
Black Sands: Hail model is not available for this location yet.
Waipahu: Hail model is not available for this location yet.
Storm surge
Black Sands: Unavailable · Waipahu: Unavailable
A score difference cannot be calculated without both sources.
Black Sands: Storm surge model is not available for this location yet.
Waipahu: Storm surge model is not available for this location yet.
Wildfire
Black Sands: Unavailable · Waipahu: Unavailable
A score difference cannot be calculated without both sources.
Black Sands: Wildfire model is not available for this location yet.
Waipahu: Wildfire model is not available for this location yet.
Current air quality
Black Sands: Unavailable · Waipahu: Unavailable
A score difference cannot be calculated without both sources.
Black Sands: Air quality model is not available for this location yet.
Waipahu: Air quality model is not available for this location yet.