City vs city
Sioux City vs Story City, IA
Story City currently scores 8 points higher overall than Sioux City, with the largest gap in flood.
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
Sioux City: 39/100 · Story City: 47/100
Story City is 8 points higher.
Flood
Sioux City: 4/100 · Story City: 60/100
Story City is 56 points higher.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Story City: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Sioux City: 20/100 · Story City: 18/100
Sioux City is 2 points higher.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Story City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux City: 52/100 · Story City: 54/100
Story City is 2 points higher.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Story City: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux City: 38/100 · Story City: 27/100
Sioux City is 11 points higher.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Story City: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux City: 86/100 · Story City: 100/100
Story City is 14 points higher.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Story City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux City: Unavailable · Story City: Unavailable
A score difference cannot be calculated without both sources.
Sioux City: Storm surge model is not available for this location yet.
Story City: Storm surge model is not available for this location yet.
Wildfire
Sioux City: 48/100 · Story City: 43/100
Sioux City is 5 points higher.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Story City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Sioux City: 26/100 · Story City: 30/100
Story City is 4 points higher.
Sioux City: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Story City: Air quality signal derived from the latest EPA AirNow combined AQI grid.