City vs city
Hempstead vs Katy, TX
Katy currently scores 7 points higher overall than Hempstead, with the largest gap in hail.
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
Hempstead: 40/100 · Katy: 47/100
Katy is 7 points higher.
Flood
Hempstead: 24/100 · Katy: 38/100
Katy is 14 points higher.
Hempstead: FEMA NFHL flood zones: 4 features intersect this tile.
Katy: FEMA NFHL flood zones: 20 features intersect this tile.
Wind
Hempstead: 27/100 · Katy: 36/100
Katy is 9 points higher.
Hempstead: Wind exposure derived from ingested design wind / climatology tiles.
Katy: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hempstead: 63/100 · Katy: 71/100
Katy is 8 points higher.
Hempstead: Lightning exposure derived from ingested climatology tiles.
Katy: Lightning exposure derived from ingested climatology tiles.
Tornado
Hempstead: 31/100 · Katy: 15/100
Hempstead is 16 points higher.
Hempstead: Tornado risk derived from NOAA SPC historical reports.
Katy: Tornado risk derived from NOAA SPC historical reports.
Hail
Hempstead: 52/100 · Katy: 100/100
Katy is 48 points higher.
Hempstead: Hail risk derived from NOAA SPC historical reports.
Katy: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hempstead: Unavailable · Katy: Unavailable
A score difference cannot be calculated without both sources.
Hempstead: Storm surge model is not available for this location yet.
Katy: Storm surge model is not available for this location yet.
Wildfire
Hempstead: 50/100 · Katy: 43/100
Hempstead is 7 points higher.
Hempstead: Wildfire exposure derived from ingested fire potential tiles.
Katy: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hempstead: 30/100 · Katy: 28/100
Hempstead is 2 points higher.
Hempstead: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Katy: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.