City vs city
Altona vs Round Lake Beach, IL
Round Lake Beach currently scores 10 points higher overall than Altona, 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
Altona: 29/100 · Round Lake Beach: 39/100
Round Lake Beach is 10 points higher.
Flood
Altona: 38/100 · Round Lake Beach: 48/100
Round Lake Beach is 10 points higher.
Altona: FEMA NFHL flood zones: 3 features intersect this tile.
Round Lake Beach: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Altona: 17/100 · Round Lake Beach: 15/100
Altona is 2 points higher.
Altona: Wind exposure derived from ingested design wind / climatology tiles.
Round Lake Beach: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Altona: 49/100 · Round Lake Beach: 57/100
Round Lake Beach is 8 points higher.
Altona: Lightning exposure derived from ingested climatology tiles.
Round Lake Beach: Lightning exposure derived from ingested climatology tiles.
Tornado
Altona: 12/100 · Round Lake Beach: 38/100
Round Lake Beach is 26 points higher.
Altona: Tornado risk derived from NOAA SPC historical reports.
Round Lake Beach: Tornado risk derived from NOAA SPC historical reports.
Hail
Altona: 47/100 · Round Lake Beach: 57/100
Round Lake Beach is 10 points higher.
Altona: Hail risk derived from NOAA SPC historical reports.
Round Lake Beach: Hail risk derived from NOAA SPC historical reports.
Storm surge
Altona: Unavailable · Round Lake Beach: Unavailable
A score difference cannot be calculated without both sources.
Altona: Storm surge model is not available for this location yet.
Round Lake Beach: Storm surge model is not available for this location yet.
Wildfire
Altona: 12/100 · Round Lake Beach: 36/100
Round Lake Beach is 24 points higher.
Altona: Wildfire exposure derived from ingested fire potential tiles.
Round Lake Beach: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Altona: 27/100 · Round Lake Beach: 22/100
Altona is 5 points higher.
Altona: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Round Lake Beach: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.