City vs city
Onawa vs Sioux City, IA
Sioux City currently scores 3 points higher overall than Onawa, 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
Onawa: 36/100 · Sioux City: 39/100
Sioux City is 3 points higher.
Flood
Onawa: 0/100 · Sioux City: 4/100
Sioux City is 4 points higher.
Onawa: FEMA NFHL flood zones: 0 features intersect this tile.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Onawa: 20/100 · Sioux City: 20/100
No gap.
Onawa: Wind exposure derived from ingested design wind / climatology tiles.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Onawa: 60/100 · Sioux City: 52/100
Onawa is 8 points higher.
Onawa: Lightning exposure derived from ingested climatology tiles.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Onawa: 0/100 · Sioux City: 38/100
Sioux City is 38 points higher.
Onawa: Tornado risk derived from NOAA SPC historical reports.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Onawa: 65/100 · Sioux City: 86/100
Sioux City is 21 points higher.
Onawa: Hail risk derived from NOAA SPC historical reports.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Onawa: Unavailable · Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Onawa: Storm surge model is not available for this location yet.
Sioux City: Storm surge model is not available for this location yet.
Wildfire
Onawa: 49/100 · Sioux City: 48/100
Onawa is 1 points higher.
Onawa: Wildfire exposure derived from ingested fire potential tiles.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Onawa: 22/100 · Sioux City: 26/100
Sioux City is 4 points higher.
Onawa: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Sioux City: Air quality signal derived from the latest EPA AirNow combined AQI grid.