City vs city
Sandy Valley vs Summerlin South, NV
Summerlin South currently scores 6 points higher overall than Sandy Valley, 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
Sandy Valley: 21/100 · Summerlin South: 27/100
Summerlin South is 6 points higher.
Flood
Sandy Valley: 36/100 · Summerlin South: 50/100
Summerlin South is 14 points higher.
Sandy Valley: FEMA NFHL flood zones: 1 features intersect this tile.
Summerlin South: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Sandy Valley: 7/100 · Summerlin South: 7/100
No gap.
Sandy Valley: Wind exposure derived from ingested design wind / climatology tiles.
Summerlin South: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sandy Valley: 10/100 · Summerlin South: 11/100
Summerlin South is 1 points higher.
Sandy Valley: Lightning exposure derived from ingested climatology tiles.
Summerlin South: Lightning exposure derived from ingested climatology tiles.
Tornado
Sandy Valley: 0/100 · Summerlin South: 0/100
No gap.
Sandy Valley: Tornado risk derived from NOAA SPC historical reports.
Summerlin South: Tornado risk derived from NOAA SPC historical reports.
Hail
Sandy Valley: 3/100 · Summerlin South: 6/100
Summerlin South is 3 points higher.
Sandy Valley: Hail risk derived from NOAA SPC historical reports.
Summerlin South: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sandy Valley: Unavailable · Summerlin South: Unavailable
A score difference cannot be calculated without both sources.
Sandy Valley: Storm surge model is not available for this location yet.
Summerlin South: Storm surge model is not available for this location yet.
Wildfire
Sandy Valley: 46/100 · Summerlin South: 63/100
Summerlin South is 17 points higher.
Sandy Valley: Wildfire exposure derived from ingested fire potential tiles.
Summerlin South: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sandy Valley: 26/100 · Summerlin South: 23/100
Sandy Valley is 3 points higher.
Sandy Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Summerlin South: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.