City vs city
Harlan vs Sioux City, IA
Harlan currently scores 5 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
Harlan: 44/100 · Sioux City: 39/100
Harlan is 5 points higher.
Flood
Harlan: 63/100 · Sioux City: 4/100
Harlan is 59 points higher.
Harlan: FEMA NFHL flood zones: 10 features intersect this tile.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Harlan: 19/100 · Sioux City: 20/100
Sioux City is 1 points higher.
Harlan: Wind exposure derived from ingested design wind / climatology tiles.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harlan: 56/100 · Sioux City: 52/100
Harlan is 4 points higher.
Harlan: Lightning exposure derived from ingested climatology tiles.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Harlan: 23/100 · Sioux City: 38/100
Sioux City is 15 points higher.
Harlan: Tornado risk derived from NOAA SPC historical reports.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Harlan: 93/100 · Sioux City: 86/100
Harlan is 7 points higher.
Harlan: Hail risk derived from NOAA SPC historical reports.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harlan: Unavailable · Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Harlan: Storm surge model is not available for this location yet.
Sioux City: Storm surge model is not available for this location yet.
Wildfire
Harlan: 32/100 · Sioux City: 48/100
Sioux City is 16 points higher.
Harlan: Wildfire exposure derived from ingested fire potential tiles.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harlan: 19/100 · Sioux City: 26/100
Sioux City is 7 points higher.
Harlan: 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.