City vs city
Rapid City vs Willow Lake, SD
Rapid City currently scores 7 points higher overall than Willow Lake, with the largest gap 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
Rapid City: 42/100 · Willow Lake: 35/100
Rapid City is 7 points higher.
Flood
Rapid City: 49/100 · Willow Lake: 44/100
Rapid City is 5 points higher.
Rapid City: FEMA NFHL flood zones: 5 features intersect this tile.
Willow Lake: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Rapid City: 20/100 · Willow Lake: 20/100
No gap.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Willow Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rapid City: 24/100 · Willow Lake: 44/100
Willow Lake is 20 points higher.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Willow Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
Rapid City: 8/100 · Willow Lake: 19/100
Willow Lake is 11 points higher.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Willow Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
Rapid City: 100/100 · Willow Lake: 66/100
Rapid City is 34 points higher.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Willow Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rapid City: Unavailable · Willow Lake: Unavailable
A score difference cannot be calculated without both sources.
Rapid City: Storm surge model is not available for this location yet.
Willow Lake: Storm surge model is not available for this location yet.
Wildfire
Rapid City: 67/100 · Willow Lake: 34/100
Rapid City is 33 points higher.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Willow Lake: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Rapid City: 29/100 · Willow Lake: 21/100
Rapid City is 8 points higher.
Rapid City: 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.