City vs city
Alton vs Rio Grande City, TX
Alton currently scores 8 points higher overall than Rio Grande City, 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
Alton: 41/100 · Rio Grande City: 33/100
Alton is 8 points higher.
Flood
Alton: 0/100 · Rio Grande City: 19/100
Rio Grande City is 19 points higher.
Alton: FEMA NFHL flood zones: 0 features intersect this tile.
Rio Grande City: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Alton: 32/100 · Rio Grande City: 24/100
Alton is 8 points higher.
Alton: Wind exposure derived from ingested design wind / climatology tiles.
Rio Grande City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alton: 34/100 · Rio Grande City: 32/100
Alton is 2 points higher.
Alton: Lightning exposure derived from ingested climatology tiles.
Rio Grande City: Lightning exposure derived from ingested climatology tiles.
Tornado
Alton: 27/100 · Rio Grande City: 0/100
Alton is 27 points higher.
Alton: Tornado risk derived from NOAA SPC historical reports.
Rio Grande City: Tornado risk derived from NOAA SPC historical reports.
Hail
Alton: 100/100 · Rio Grande City: 68/100
Alton is 32 points higher.
Alton: Hail risk derived from NOAA SPC historical reports.
Rio Grande City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alton: Unavailable · Rio Grande City: Unavailable
A score difference cannot be calculated without both sources.
Alton: Storm surge model is not available for this location yet.
Rio Grande City: Storm surge model is not available for this location yet.
Wildfire
Alton: 67/100 · Rio Grande City: Unavailable
A score difference cannot be calculated without both sources.
Alton: Wildfire exposure derived from ingested fire potential tiles.
Rio Grande City: Wildfire model is not available for this location yet.
Current air quality
Alton: 26/100 · Rio Grande City: 24/100
Alton is 2 points higher.
Alton: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rio Grande City: Air quality signal derived from the latest EPA AirNow combined AQI grid.