City vs city
Mertens vs San Antonio, TX
San Antonio currently scores 8 points higher overall than Mertens, 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 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
Mertens: 40/100 · San Antonio: 48/100
San Antonio is 8 points higher.
Flood
Mertens: 34/100 · San Antonio: 33/100
Mertens is 1 points higher.
Mertens: FEMA NFHL flood zones: 10 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Mertens: 14/100 · San Antonio: 17/100
San Antonio is 3 points higher.
Mertens: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mertens: 60/100 · San Antonio: 38/100
Mertens is 22 points higher.
Mertens: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Mertens: 38/100 · San Antonio: 62/100
San Antonio is 24 points higher.
Mertens: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Mertens: 51/100 · San Antonio: 100/100
San Antonio is 49 points higher.
Mertens: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mertens: Unavailable · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Mertens: Storm surge model is not available for this location yet.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Mertens: 53/100 · San Antonio: 60/100
San Antonio is 7 points higher.
Mertens: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Mertens: 27/100 · San Antonio: 28/100
San Antonio is 1 points higher.
Mertens: Air quality signal derived from the latest EPA AirNow combined AQI grid.
San Antonio: Air quality signal derived from the latest EPA AirNow combined AQI grid.