City vs city
Houston vs Port Arthur, TX
Port Arthur currently scores 12 points higher overall than Houston, 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
Houston: 48/100 · Port Arthur: 60/100
Port Arthur is 12 points higher.
Flood
Houston: 40/100 · Port Arthur: 1/100
Houston is 39 points higher.
Houston: FEMA NFHL flood zones: 20 features intersect this tile.
Port Arthur: FEMA NFHL flood zones: 1 features intersect this tile.
Wind
Houston: 42/100 · Port Arthur: 48/100
Port Arthur is 6 points higher.
Houston: Wind exposure derived from ingested design wind / climatology tiles.
Port Arthur: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Houston: 71/100 · Port Arthur: 58/100
Houston is 13 points higher.
Houston: Lightning exposure derived from ingested climatology tiles.
Port Arthur: Lightning exposure derived from ingested climatology tiles.
Tornado
Houston: 50/100 · Port Arthur: 100/100
Port Arthur is 50 points higher.
Houston: Tornado risk derived from NOAA SPC historical reports.
Port Arthur: Tornado risk derived from NOAA SPC historical reports.
Hail
Houston: 58/100 · Port Arthur: 94/100
Port Arthur is 36 points higher.
Houston: Hail risk derived from NOAA SPC historical reports.
Port Arthur: Hail risk derived from NOAA SPC historical reports.
Storm surge
Houston: Unavailable · Port Arthur: 99/100
A score difference cannot be calculated without both sources.
Houston: Storm surge model is not available for this location yet.
Port Arthur: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Houston: 51/100 · Port Arthur: 50/100
Houston is 1 points higher.
Houston: Wildfire exposure derived from ingested fire potential tiles.
Port Arthur: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Houston: 27/100 · Port Arthur: 26/100
Houston is 1 points higher.
Houston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Port Arthur: Air quality signal derived from the latest EPA AirNow combined AQI grid.