City vs city
Kemah vs San Antonio, TX
Kemah currently scores 20 points higher overall than San Antonio, 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
Kemah: 65/100 · San Antonio: 45/100
Kemah is 20 points higher.
Flood
Kemah: 71/100 · San Antonio: 31/100
Kemah is 40 points higher.
Kemah: FEMA NFHL flood zones: 33 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Kemah: 49/100 · San Antonio: 16/100
Kemah is 33 points higher.
Kemah: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Kemah: 63/100 · San Antonio: 44/100
Kemah is 19 points higher.
Kemah: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Kemah: 77/100 · San Antonio: 42/100
Kemah is 35 points higher.
Kemah: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Kemah: 95/100 · San Antonio: 100/100
San Antonio is 5 points higher.
Kemah: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Kemah: 99/100 · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Kemah: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Kemah: 42/100 · San Antonio: 54/100
San Antonio is 12 points higher.
Kemah: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Kemah: 26/100 · San Antonio: 26/100
No gap.
Kemah: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
San Antonio: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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