City vs city
Ponca vs South Sioux City, NE
South Sioux City currently scores 4 points higher overall than Ponca, 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 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
Ponca: 32/100 · South Sioux City: 36/100
South Sioux City is 4 points higher.
Flood
Ponca: 0/100 · South Sioux City: 5/100
South Sioux City is 5 points higher.
Ponca: FEMA NFHL flood zones: 0 features intersect this tile.
South Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Ponca: 20/100 · South Sioux City: 20/100
No gap.
Ponca: Wind exposure derived from ingested design wind / climatology tiles.
South Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ponca: 41/100 · South Sioux City: 49/100
South Sioux City is 8 points higher.
Ponca: Lightning exposure derived from ingested climatology tiles.
South Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Ponca: 8/100 · South Sioux City: 4/100
Ponca is 4 points higher.
Ponca: Tornado risk derived from NOAA SPC historical reports.
South Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Ponca: 84/100 · South Sioux City: 100/100
South Sioux City is 16 points higher.
Ponca: Hail risk derived from NOAA SPC historical reports.
South Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ponca: Unavailable · South Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Ponca: Storm surge model is not available for this location yet.
South Sioux City: Storm surge model is not available for this location yet.
Wildfire
Ponca: 46/100 · South Sioux City: 50/100
South Sioux City is 4 points higher.
Ponca: Wildfire exposure derived from ingested fire potential tiles.
South Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ponca: 24/100 · South Sioux City: 26/100
South Sioux City is 2 points higher.
Ponca: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Sioux City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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