City vs city
Sumner vs West Union, IA
Sumner currently scores 14 points higher overall than West Union, 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 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
Sumner: 39/100 · West Union: 25/100
Sumner is 14 points higher.
Flood
Sumner: 52/100 · West Union: 43/100
Sumner is 9 points higher.
Sumner: FEMA NFHL flood zones: 10 features intersect this tile.
West Union: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Sumner: 17/100 · West Union: 17/100
No gap.
Sumner: Wind exposure derived from ingested design wind / climatology tiles.
West Union: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sumner: 22/100 · West Union: 18/100
Sumner is 4 points higher.
Sumner: Lightning exposure derived from ingested climatology tiles.
West Union: Lightning exposure derived from ingested climatology tiles.
Tornado
Sumner: 73/100 · West Union: 15/100
Sumner is 58 points higher.
Sumner: Tornado risk derived from NOAA SPC historical reports.
West Union: Tornado risk derived from NOAA SPC historical reports.
Hail
Sumner: 53/100 · West Union: 26/100
Sumner is 27 points higher.
Sumner: Hail risk derived from NOAA SPC historical reports.
West Union: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sumner: Unavailable · West Union: Unavailable
A score difference cannot be calculated without both sources.
Sumner: Storm surge model is not available for this location yet.
West Union: Storm surge model is not available for this location yet.
Wildfire
Sumner: 33/100 · West Union: 38/100
West Union is 5 points higher.
Sumner: Wildfire exposure derived from ingested fire potential tiles.
West Union: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sumner: 21/100 · West Union: 21/100
No gap.
Sumner: 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.