City vs city
Hewlett vs Valley Stream, NY
Hewlett currently scores 5 points higher overall than Valley Stream, 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
Hewlett: 47/100 · Valley Stream: 42/100
Hewlett is 5 points higher.
Flood
Hewlett: 78/100 · Valley Stream: 61/100
Hewlett is 17 points higher.
Hewlett: FEMA NFHL flood zones: 15 features intersect this tile.
Valley Stream: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Hewlett: 28/100 · Valley Stream: 26/100
Hewlett is 2 points higher.
Hewlett: Wind exposure derived from ingested design wind / climatology tiles.
Valley Stream: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hewlett: 16/100 · Valley Stream: 17/100
Valley Stream is 1 points higher.
Hewlett: Lightning exposure derived from ingested climatology tiles.
Valley Stream: Lightning exposure derived from ingested climatology tiles.
Tornado
Hewlett: 15/100 · Valley Stream: 4/100
Hewlett is 11 points higher.
Hewlett: Tornado risk derived from NOAA SPC historical reports.
Valley Stream: Tornado risk derived from NOAA SPC historical reports.
Hail
Hewlett: 15/100 · Valley Stream: 11/100
Hewlett is 4 points higher.
Hewlett: Hail risk derived from NOAA SPC historical reports.
Valley Stream: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hewlett: 99/100 · Valley Stream: 99/100
No gap.
Hewlett: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Valley Stream: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Hewlett: 76/100 · Valley Stream: 66/100
Hewlett is 10 points higher.
Hewlett: Wildfire exposure derived from ingested fire potential tiles.
Valley Stream: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hewlett: 47/100 · Valley Stream: 48/100
Valley Stream is 1 points higher.
Hewlett: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Valley Stream: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.