City vs city
Roanoke vs San Antonio, TX
Roanoke currently scores 6 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
Roanoke: 45/100 · San Antonio: 39/100
Roanoke is 6 points higher.
Flood
Roanoke: 44/100 · San Antonio: 34/100
Roanoke is 10 points higher.
Roanoke: FEMA NFHL flood zones: 18 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Roanoke: 14/100 · San Antonio: 17/100
San Antonio is 3 points higher.
Roanoke: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Roanoke: 57/100 · San Antonio: 35/100
Roanoke is 22 points higher.
Roanoke: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Roanoke: 27/100 · San Antonio: 4/100
Roanoke is 23 points higher.
Roanoke: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Roanoke: 100/100 · San Antonio: 100/100
No gap.
Roanoke: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Roanoke: Unavailable · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Roanoke: Storm surge model is not available for this location yet.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Roanoke: 48/100 · San Antonio: 54/100
San Antonio is 6 points higher.
Roanoke: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Roanoke: 28/100 · San Antonio: 30/100
San Antonio is 2 points higher.
Roanoke: 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.