City vs city
Port Arthur vs San Antonio, TX
Port Arthur currently scores 12 points higher overall than San Antonio, with the largest gap in tornado.
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
Port Arthur: 60/100 · San Antonio: 48/100
Port Arthur is 12 points higher.
Flood
Port Arthur: 1/100 · San Antonio: 33/100
San Antonio is 32 points higher.
Port Arthur: FEMA NFHL flood zones: 1 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Port Arthur: 48/100 · San Antonio: 17/100
Port Arthur is 31 points higher.
Port Arthur: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Port Arthur: 58/100 · San Antonio: 38/100
Port Arthur is 20 points higher.
Port Arthur: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Port Arthur: 100/100 · San Antonio: 62/100
Port Arthur is 38 points higher.
Port Arthur: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Port Arthur: 94/100 · San Antonio: 100/100
San Antonio is 6 points higher.
Port Arthur: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Port Arthur: 99/100 · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Port Arthur: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Port Arthur: 50/100 · San Antonio: 60/100
San Antonio is 10 points higher.
Port Arthur: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Port Arthur: 26/100 · San Antonio: 28/100
San Antonio is 2 points higher.
Port Arthur: 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.