City vs city
Watertown vs Willow Lake, SD
Watertown currently scores 15 points higher overall than Willow Lake, 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
Watertown: 50/100 · Willow Lake: 35/100
Watertown is 15 points higher.
Flood
Watertown: 79/100 · Willow Lake: 44/100
Watertown is 35 points higher.
Watertown: FEMA NFHL flood zones: 8 features intersect this tile.
Willow Lake: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Watertown: 20/100 · Willow Lake: 20/100
No gap.
Watertown: Wind exposure derived from ingested design wind / climatology tiles.
Willow Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Watertown: 42/100 · Willow Lake: 44/100
Willow Lake is 2 points higher.
Watertown: Lightning exposure derived from ingested climatology tiles.
Willow Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
Watertown: 0/100 · Willow Lake: 19/100
Willow Lake is 19 points higher.
Watertown: Tornado risk derived from NOAA SPC historical reports.
Willow Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
Watertown: 100/100 · Willow Lake: 66/100
Watertown is 34 points higher.
Watertown: Hail risk derived from NOAA SPC historical reports.
Willow Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
Watertown: Unavailable · Willow Lake: Unavailable
A score difference cannot be calculated without both sources.
Watertown: Storm surge model is not available for this location yet.
Willow Lake: Storm surge model is not available for this location yet.
Wildfire
Watertown: 38/100 · Willow Lake: 34/100
Watertown is 4 points higher.
Watertown: Wildfire exposure derived from ingested fire potential tiles.
Willow Lake: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Watertown: 21/100 · Willow Lake: 21/100
No gap.
Watertown: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Willow Lake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.