City vs city
Brant Lake vs Rapid City, SD
Rapid City currently scores 1 points higher overall than Brant 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
Brant Lake: 41/100 · Rapid City: 42/100
Rapid City is 1 points higher.
Flood
Brant Lake: 78/100 · Rapid City: 49/100
Brant Lake is 29 points higher.
Brant Lake: FEMA NFHL flood zones: 18 features intersect this tile.
Rapid City: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Brant Lake: 20/100 · Rapid City: 20/100
No gap.
Brant Lake: Wind exposure derived from ingested design wind / climatology tiles.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Brant Lake: 67/100 · Rapid City: 24/100
Brant Lake is 43 points higher.
Brant Lake: Lightning exposure derived from ingested climatology tiles.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Tornado
Brant Lake: 12/100 · Rapid City: 8/100
Brant Lake is 4 points higher.
Brant Lake: Tornado risk derived from NOAA SPC historical reports.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Hail
Brant Lake: 44/100 · Rapid City: 100/100
Rapid City is 56 points higher.
Brant Lake: Hail risk derived from NOAA SPC historical reports.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Brant Lake: Unavailable · Rapid City: Unavailable
A score difference cannot be calculated without both sources.
Brant Lake: Storm surge model is not available for this location yet.
Rapid City: Storm surge model is not available for this location yet.
Wildfire
Brant Lake: 46/100 · Rapid City: 67/100
Rapid City is 21 points higher.
Brant Lake: Wildfire exposure derived from ingested fire potential tiles.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Brant Lake: 20/100 · Rapid City: 29/100
Rapid City is 9 points higher.
Brant 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.
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.