City vs city
Grand Marsh vs Lake Delton, WI
Grand Marsh and Lake Delton are tied on overall score, with the biggest factor difference 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
Grand Marsh: 29/100 · Lake Delton: 29/100
No gap.
Flood
Grand Marsh: 46/100 · Lake Delton: 44/100
Grand Marsh is 2 points higher.
Grand Marsh: FEMA NFHL flood zones: 6 features intersect this tile.
Lake Delton: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Grand Marsh: 15/100 · Lake Delton: 16/100
Lake Delton is 1 points higher.
Grand Marsh: Wind exposure derived from ingested design wind / climatology tiles.
Lake Delton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Marsh: 17/100 · Lake Delton: 24/100
Lake Delton is 7 points higher.
Grand Marsh: Lightning exposure derived from ingested climatology tiles.
Lake Delton: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Marsh: 0/100 · Lake Delton: 15/100
Lake Delton is 15 points higher.
Grand Marsh: Tornado risk derived from NOAA SPC historical reports.
Lake Delton: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Marsh: 10/100 · Lake Delton: 27/100
Lake Delton is 17 points higher.
Grand Marsh: Hail risk derived from NOAA SPC historical reports.
Lake Delton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Marsh: Unavailable · Lake Delton: Unavailable
A score difference cannot be calculated without both sources.
Grand Marsh: Storm surge model is not available for this location yet.
Lake Delton: Storm surge model is not available for this location yet.
Wildfire
Grand Marsh: 70/100 · Lake Delton: 58/100
Grand Marsh is 12 points higher.
Grand Marsh: Wildfire exposure derived from ingested fire potential tiles.
Lake Delton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Marsh: 18/100 · Lake Delton: 18/100
No gap.
Grand Marsh: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Lake Delton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.