City vs city
Johnston vs Windsor Heights, IA
Johnston and Windsor Heights 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 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
Johnston: 51/100 · Windsor Heights: 51/100
No gap.
Flood
Johnston: 52/100 · Windsor Heights: 52/100
No gap.
Johnston: FEMA NFHL flood zones: 8 features intersect this tile.
Windsor Heights: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Johnston: 18/100 · Windsor Heights: 18/100
No gap.
Johnston: Wind exposure derived from ingested design wind / climatology tiles.
Windsor Heights: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Johnston: 58/100 · Windsor Heights: 58/100
No gap.
Johnston: Lightning exposure derived from ingested climatology tiles.
Windsor Heights: Lightning exposure derived from ingested climatology tiles.
Tornado
Johnston: 73/100 · Windsor Heights: 73/100
No gap.
Johnston: Tornado risk derived from NOAA SPC historical reports.
Windsor Heights: Tornado risk derived from NOAA SPC historical reports.
Hail
Johnston: 100/100 · Windsor Heights: 100/100
No gap.
Johnston: Hail risk derived from NOAA SPC historical reports.
Windsor Heights: Hail risk derived from NOAA SPC historical reports.
Storm surge
Johnston: Unavailable · Windsor Heights: Unavailable
A score difference cannot be calculated without both sources.
Johnston: Storm surge model is not available for this location yet.
Windsor Heights: Storm surge model is not available for this location yet.
Wildfire
Johnston: 24/100 · Windsor Heights: 24/100
No gap.
Johnston: Wildfire exposure derived from ingested fire potential tiles.
Windsor Heights: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Johnston: 30/100 · Windsor Heights: 30/100
No gap.
Johnston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Windsor Heights: Air quality signal derived from the latest EPA AirNow combined AQI grid.