City vs city
Mount Vernon vs Nason, IL
Nason currently scores 4 points higher overall than Mount Vernon, with the largest gap 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 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
Mount Vernon: 29/100 · Nason: 33/100
Nason is 4 points higher.
Flood
Mount Vernon: 47/100 · Nason: 95/100
Nason is 48 points higher.
Mount Vernon: FEMA NFHL flood zones: 4 features intersect this tile.
Nason: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Mount Vernon: 15/100 · Nason: 15/100
No gap.
Mount Vernon: Wind exposure derived from ingested design wind / climatology tiles.
Nason: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Vernon: 46/100 · Nason: 46/100
No gap.
Mount Vernon: Lightning exposure derived from ingested climatology tiles.
Nason: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Vernon: 15/100 · Nason: 8/100
Mount Vernon is 7 points higher.
Mount Vernon: Tornado risk derived from NOAA SPC historical reports.
Nason: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Vernon: 29/100 · Nason: 26/100
Mount Vernon is 3 points higher.
Mount Vernon: Hail risk derived from NOAA SPC historical reports.
Nason: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Vernon: Unavailable · Nason: Unavailable
A score difference cannot be calculated without both sources.
Mount Vernon: Storm surge model is not available for this location yet.
Nason: Storm surge model is not available for this location yet.
Wildfire
Mount Vernon: 19/100 · Nason: 9/100
Mount Vernon is 10 points higher.
Mount Vernon: Wildfire exposure derived from ingested fire potential tiles.
Nason: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Vernon: 30/100 · Nason: 30/100
No gap.
Mount Vernon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Nason: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.