City vs city
Fort Thompson vs Rapid City, SD
Rapid City currently scores 12 points higher overall than Fort Thompson, 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 is a current EPA AirNow signal; 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
Fort Thompson: 31/100 · Rapid City: 43/100
Rapid City is 12 points higher.
Flood
Fort Thompson: Unavailable · Rapid City: 53/100
A score difference cannot be calculated without both sources.
Fort Thompson: Flood model is not available for this location yet.
Rapid City: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Fort Thompson: 22/100 · Rapid City: 20/100
Fort Thompson is 2 points higher.
Fort Thompson: Wind exposure derived from ingested design wind / climatology tiles.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fort Thompson: 27/100 · Rapid City: 23/100
Fort Thompson is 4 points higher.
Fort Thompson: Lightning exposure derived from ingested climatology tiles.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Tornado
Fort Thompson: 50/100 · Rapid City: 23/100
Fort Thompson is 27 points higher.
Fort Thompson: Tornado risk derived from NOAA SPC historical reports.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Hail
Fort Thompson: 41/100 · Rapid City: 100/100
Rapid City is 59 points higher.
Fort Thompson: Hail risk derived from NOAA SPC historical reports.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fort Thompson: Unavailable · Rapid City: Unavailable
A score difference cannot be calculated without both sources.
Fort Thompson: Storm surge model is not available for this location yet.
Rapid City: Storm surge model is not available for this location yet.
Wildfire
Fort Thompson: 54/100 · Rapid City: 57/100
Rapid City is 3 points higher.
Fort Thompson: Wildfire exposure derived from ingested fire potential tiles.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Fort Thompson: 26/100 · Rapid City: 28/100
Rapid City is 2 points higher.
Fort Thompson: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rapid City: Air quality signal derived from the latest EPA AirNow combined AQI grid.