City vs city
Doon vs Rock Valley, IA
Doon and Rock Valley are tied on overall score, with the biggest factor difference 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 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
Doon: 47/100 · Rock Valley: 47/100
No gap.
Flood
Doon: 67/100 · Rock Valley: 67/100
No gap.
Doon: FEMA NFHL flood zones: 11 features intersect this tile.
Rock Valley: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Doon: 20/100 · Rock Valley: 20/100
No gap.
Doon: Wind exposure derived from ingested design wind / climatology tiles.
Rock Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Doon: 48/100 · Rock Valley: 48/100
No gap.
Doon: Lightning exposure derived from ingested climatology tiles.
Rock Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Doon: 35/100 · Rock Valley: 35/100
No gap.
Doon: Tornado risk derived from NOAA SPC historical reports.
Rock Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Doon: 100/100 · Rock Valley: 100/100
No gap.
Doon: Hail risk derived from NOAA SPC historical reports.
Rock Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Doon: Unavailable · Rock Valley: Unavailable
A score difference cannot be calculated without both sources.
Doon: Storm surge model is not available for this location yet.
Rock Valley: Storm surge model is not available for this location yet.
Wildfire
Doon: 39/100 · Rock Valley: 39/100
No gap.
Doon: Wildfire exposure derived from ingested fire potential tiles.
Rock Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Doon: 22/100 · Rock Valley: 22/100
No gap.
Doon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rock Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.