City vs city
Chelsea vs Des Moines, IA
Des Moines currently scores 12 points higher overall than Chelsea, 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
Chelsea: 34/100 · Des Moines: 46/100
Des Moines is 12 points higher.
Flood
Chelsea: 75/100 · Des Moines: 73/100
Chelsea is 2 points higher.
Chelsea: FEMA NFHL flood zones: 7 features intersect this tile.
Des Moines: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Chelsea: 18/100 · Des Moines: 18/100
No gap.
Chelsea: Wind exposure derived from ingested design wind / climatology tiles.
Des Moines: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chelsea: 44/100 · Des Moines: 58/100
Des Moines is 14 points higher.
Chelsea: Lightning exposure derived from ingested climatology tiles.
Des Moines: Lightning exposure derived from ingested climatology tiles.
Tornado
Chelsea: 4/100 · Des Moines: 12/100
Des Moines is 8 points higher.
Chelsea: Tornado risk derived from NOAA SPC historical reports.
Des Moines: Tornado risk derived from NOAA SPC historical reports.
Hail
Chelsea: 23/100 · Des Moines: 100/100
Des Moines is 77 points higher.
Chelsea: Hail risk derived from NOAA SPC historical reports.
Des Moines: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chelsea: Unavailable · Des Moines: Unavailable
A score difference cannot be calculated without both sources.
Chelsea: Storm surge model is not available for this location yet.
Des Moines: Storm surge model is not available for this location yet.
Wildfire
Chelsea: 51/100 · Des Moines: 31/100
Chelsea is 20 points higher.
Chelsea: Wildfire exposure derived from ingested fire potential tiles.
Des Moines: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chelsea: 24/100 · Des Moines: 32/100
Des Moines is 8 points higher.
Chelsea: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Des Moines: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.