City vs city
Chelsea vs Marengo, IA
Marengo currently scores 6 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 · Marengo: 40/100
Marengo is 6 points higher.
Flood
Chelsea: 75/100 · Marengo: 55/100
Chelsea is 20 points higher.
Chelsea: FEMA NFHL flood zones: 7 features intersect this tile.
Marengo: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Chelsea: 18/100 · Marengo: 17/100
Chelsea is 1 points higher.
Chelsea: Wind exposure derived from ingested design wind / climatology tiles.
Marengo: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chelsea: 44/100 · Marengo: 47/100
Marengo is 3 points higher.
Chelsea: Lightning exposure derived from ingested climatology tiles.
Marengo: Lightning exposure derived from ingested climatology tiles.
Tornado
Chelsea: 4/100 · Marengo: 31/100
Marengo is 27 points higher.
Chelsea: Tornado risk derived from NOAA SPC historical reports.
Marengo: Tornado risk derived from NOAA SPC historical reports.
Hail
Chelsea: 23/100 · Marengo: 57/100
Marengo is 34 points higher.
Chelsea: Hail risk derived from NOAA SPC historical reports.
Marengo: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chelsea: Unavailable · Marengo: Unavailable
A score difference cannot be calculated without both sources.
Chelsea: Storm surge model is not available for this location yet.
Marengo: Storm surge model is not available for this location yet.
Wildfire
Chelsea: 51/100 · Marengo: 45/100
Chelsea is 6 points higher.
Chelsea: Wildfire exposure derived from ingested fire potential tiles.
Marengo: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chelsea: 24/100 · Marengo: 26/100
Marengo is 2 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.
Marengo: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.