City vs city
Arnold Line vs Petal, MS
Arnold Line currently scores 13 points higher overall than Petal, 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
Arnold Line: 69/100 · Petal: 56/100
Arnold Line is 13 points higher.
Flood
Arnold Line: 59/100 · Petal: 57/100
Arnold Line is 2 points higher.
Arnold Line: FEMA NFHL flood zones: 15 features intersect this tile.
Petal: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Arnold Line: 36/100 · Petal: 38/100
Petal is 2 points higher.
Arnold Line: Wind exposure derived from ingested design wind / climatology tiles.
Petal: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Arnold Line: 90/100 · Petal: 89/100
Arnold Line is 1 points higher.
Arnold Line: Lightning exposure derived from ingested climatology tiles.
Petal: Lightning exposure derived from ingested climatology tiles.
Tornado
Arnold Line: 100/100 · Petal: 31/100
Arnold Line is 69 points higher.
Arnold Line: Tornado risk derived from NOAA SPC historical reports.
Petal: Tornado risk derived from NOAA SPC historical reports.
Hail
Arnold Line: 100/100 · Petal: 82/100
Arnold Line is 18 points higher.
Arnold Line: Hail risk derived from NOAA SPC historical reports.
Petal: Hail risk derived from NOAA SPC historical reports.
Storm surge
Arnold Line: Unavailable · Petal: Unavailable
A score difference cannot be calculated without both sources.
Arnold Line: Storm surge model is not available for this location yet.
Petal: Storm surge model is not available for this location yet.
Wildfire
Arnold Line: 75/100 · Petal: 73/100
Arnold Line is 2 points higher.
Arnold Line: Wildfire exposure derived from ingested fire potential tiles.
Petal: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Arnold Line: 22/100 · Petal: 22/100
No gap.
Arnold Line: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Petal: Air quality signal derived from the latest EPA AirNow combined AQI grid.