City vs city
Houston vs Port Isabel, TX
Port Isabel currently scores 4 points higher overall than Houston, 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
Houston: 44/100 · Port Isabel: 48/100
Port Isabel is 4 points higher.
Flood
Houston: 43/100 · Port Isabel: 100/100
Port Isabel is 57 points higher.
Houston: FEMA NFHL flood zones: 20 features intersect this tile.
Port Isabel: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Houston: 43/100 · Port Isabel: 53/100
Port Isabel is 10 points higher.
Houston: Wind exposure derived from ingested design wind / climatology tiles.
Port Isabel: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Houston: 70/100 · Port Isabel: 27/100
Houston is 43 points higher.
Houston: Lightning exposure derived from ingested climatology tiles.
Port Isabel: Lightning exposure derived from ingested climatology tiles.
Tornado
Houston: 35/100 · Port Isabel: 31/100
Houston is 4 points higher.
Houston: Tornado risk derived from NOAA SPC historical reports.
Port Isabel: Tornado risk derived from NOAA SPC historical reports.
Hail
Houston: 43/100 · Port Isabel: 1/100
Houston is 42 points higher.
Houston: Hail risk derived from NOAA SPC historical reports.
Port Isabel: Hail risk derived from NOAA SPC historical reports.
Storm surge
Houston: Unavailable · Port Isabel: 95/100
A score difference cannot be calculated without both sources.
Houston: Storm surge model is not available for this location yet.
Port Isabel: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Houston: 45/100 · Port Isabel: 47/100
Port Isabel is 2 points higher.
Houston: Wildfire exposure derived from ingested fire potential tiles.
Port Isabel: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Houston: 28/100 · Port Isabel: 28/100
No gap.
Houston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Port Isabel: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.