City vs city
Sioux City vs West Union, IA
Sioux City currently scores 14 points higher overall than West Union, 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
Sioux City: 39/100 · West Union: 25/100
Sioux City is 14 points higher.
Flood
Sioux City: 4/100 · West Union: 43/100
West Union is 39 points higher.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
West Union: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Sioux City: 20/100 · West Union: 17/100
Sioux City is 3 points higher.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
West Union: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux City: 52/100 · West Union: 18/100
Sioux City is 34 points higher.
Sioux City: Lightning exposure derived from ingested climatology tiles.
West Union: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux City: 38/100 · West Union: 15/100
Sioux City is 23 points higher.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
West Union: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux City: 86/100 · West Union: 26/100
Sioux City is 60 points higher.
Sioux City: Hail risk derived from NOAA SPC historical reports.
West Union: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux City: Unavailable · West Union: Unavailable
A score difference cannot be calculated without both sources.
Sioux City: Storm surge model is not available for this location yet.
West Union: Storm surge model is not available for this location yet.
Wildfire
Sioux City: 48/100 · West Union: 38/100
Sioux City is 10 points higher.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
West Union: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sioux City: 26/100 · West Union: 21/100
Sioux City is 5 points higher.
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.
West Union: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.