City vs city
Alta vs Iowa City, IA
Iowa City currently scores 16 points higher overall than Alta, 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
Alta: 32/100 · Iowa City: 48/100
Iowa City is 16 points higher.
Flood
Alta: 43/100 · Iowa City: 64/100
Iowa City is 21 points higher.
Alta: FEMA NFHL flood zones: 4 features intersect this tile.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Alta: 19/100 · Iowa City: 17/100
Alta is 2 points higher.
Alta: Wind exposure derived from ingested design wind / climatology tiles.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alta: 56/100 · Iowa City: 47/100
Alta is 9 points higher.
Alta: Lightning exposure derived from ingested climatology tiles.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Tornado
Alta: 23/100 · Iowa City: 38/100
Iowa City is 15 points higher.
Alta: Tornado risk derived from NOAA SPC historical reports.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Hail
Alta: 26/100 · Iowa City: 100/100
Iowa City is 74 points higher.
Alta: Hail risk derived from NOAA SPC historical reports.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alta: Unavailable · Iowa City: Unavailable
A score difference cannot be calculated without both sources.
Alta: Storm surge model is not available for this location yet.
Iowa City: Storm surge model is not available for this location yet.
Wildfire
Alta: 36/100 · Iowa City: 43/100
Iowa City is 7 points higher.
Alta: Wildfire exposure derived from ingested fire potential tiles.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alta: 20/100 · Iowa City: 24/100
Iowa City is 4 points higher.
Alta: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Iowa 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.