City vs city
LaSalle vs Ottawa, IL
Ottawa currently scores 1 points higher overall than LaSalle, with the largest gap in tornado.
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
LaSalle: 40/100 · Ottawa: 41/100
Ottawa is 1 points higher.
Flood
LaSalle: 61/100 · Ottawa: 47/100
LaSalle is 14 points higher.
LaSalle: FEMA NFHL flood zones: 8 features intersect this tile.
Ottawa: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
LaSalle: 16/100 · Ottawa: 16/100
No gap.
LaSalle: Wind exposure derived from ingested design wind / climatology tiles.
Ottawa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
LaSalle: 46/100 · Ottawa: 48/100
Ottawa is 2 points higher.
LaSalle: Lightning exposure derived from ingested climatology tiles.
Ottawa: Lightning exposure derived from ingested climatology tiles.
Tornado
LaSalle: 0/100 · Ottawa: 35/100
Ottawa is 35 points higher.
LaSalle: Tornado risk derived from NOAA SPC historical reports.
Ottawa: Tornado risk derived from NOAA SPC historical reports.
Hail
LaSalle: 61/100 · Ottawa: 80/100
Ottawa is 19 points higher.
LaSalle: Hail risk derived from NOAA SPC historical reports.
Ottawa: Hail risk derived from NOAA SPC historical reports.
Storm surge
LaSalle: Unavailable · Ottawa: Unavailable
A score difference cannot be calculated without both sources.
LaSalle: Storm surge model is not available for this location yet.
Ottawa: Storm surge model is not available for this location yet.
Wildfire
LaSalle: 28/100 · Ottawa: 31/100
Ottawa is 3 points higher.
LaSalle: Wildfire exposure derived from ingested fire potential tiles.
Ottawa: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
LaSalle: 27/100 · Ottawa: 27/100
No gap.
LaSalle: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Ottawa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.