City vs city
Mount Vernon vs Upland Colony, SD
Mount Vernon currently scores 2 points higher overall than Upland Colony, 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: 42/100 · Upland Colony: 40/100
Mount Vernon is 2 points higher.
Flood
Mount Vernon: 41/100 · Upland Colony: 85/100
Upland Colony is 44 points higher.
Mount Vernon: FEMA NFHL flood zones: 2 features intersect this tile.
Upland Colony: FEMA NFHL flood zones: 27 features intersect this tile.
Wind
Mount Vernon: 21/100 · Upland Colony: 21/100
No gap.
Mount Vernon: Wind exposure derived from ingested design wind / climatology tiles.
Upland Colony: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Vernon: 49/100 · Upland Colony: 57/100
Upland Colony is 8 points higher.
Mount Vernon: Lightning exposure derived from ingested climatology tiles.
Upland Colony: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Vernon: 23/100 · Upland Colony: 4/100
Mount Vernon is 19 points higher.
Mount Vernon: Tornado risk derived from NOAA SPC historical reports.
Upland Colony: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Vernon: 71/100 · Upland Colony: 55/100
Mount Vernon is 16 points higher.
Mount Vernon: Hail risk derived from NOAA SPC historical reports.
Upland Colony: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Vernon: Unavailable · Upland Colony: Unavailable
A score difference cannot be calculated without both sources.
Mount Vernon: Storm surge model is not available for this location yet.
Upland Colony: Storm surge model is not available for this location yet.
Wildfire
Mount Vernon: 47/100 · Upland Colony: 47/100
No gap.
Mount Vernon: Wildfire exposure derived from ingested fire potential tiles.
Upland Colony: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Vernon: Unavailable · Upland Colony: 11/100
A score difference cannot be calculated without both sources.
Mount Vernon: Air quality model is not available for this location yet.
Upland Colony: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.