City vs city
Harlingen vs Port Isabel, TX
Port Isabel currently scores 9 points higher overall than Harlingen, with the largest gap in storm surge.
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
Harlingen: 39/100 · Port Isabel: 48/100
Port Isabel is 9 points higher.
Flood
Harlingen: 39/100 · Port Isabel: 100/100
Port Isabel is 61 points higher.
Harlingen: FEMA NFHL flood zones: 12 features intersect this tile.
Port Isabel: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Harlingen: 47/100 · Port Isabel: 53/100
Port Isabel is 6 points higher.
Harlingen: Wind exposure derived from ingested design wind / climatology tiles.
Port Isabel: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harlingen: 34/100 · Port Isabel: 27/100
Harlingen is 7 points higher.
Harlingen: Lightning exposure derived from ingested climatology tiles.
Port Isabel: Lightning exposure derived from ingested climatology tiles.
Tornado
Harlingen: 35/100 · Port Isabel: 31/100
Harlingen is 4 points higher.
Harlingen: Tornado risk derived from NOAA SPC historical reports.
Port Isabel: Tornado risk derived from NOAA SPC historical reports.
Hail
Harlingen: 49/100 · Port Isabel: 1/100
Harlingen is 48 points higher.
Harlingen: Hail risk derived from NOAA SPC historical reports.
Port Isabel: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harlingen: 21/100 · Port Isabel: 95/100
Port Isabel is 74 points higher.
Harlingen: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Port Isabel: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Harlingen: 56/100 · Port Isabel: 47/100
Harlingen is 9 points higher.
Harlingen: Wildfire exposure derived from ingested fire potential tiles.
Port Isabel: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harlingen: 27/100 · Port Isabel: 28/100
Port Isabel is 1 points higher.
Harlingen: 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.