City vs city
Fort Thompson vs Sioux Falls, SD
Sioux Falls currently scores 19 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 · Sioux Falls: 50/100
Sioux Falls is 19 points higher.
Flood
Fort Thompson: Unavailable · Sioux Falls: 52/100
A score difference cannot be calculated without both sources.
Fort Thompson: Flood model is not available for this location yet.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Fort Thompson: 22/100 · Sioux Falls: 20/100
Fort Thompson is 2 points higher.
Fort Thompson: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fort Thompson: 27/100 · Sioux Falls: 46/100
Sioux Falls is 19 points higher.
Fort Thompson: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Fort Thompson: 50/100 · Sioux Falls: 58/100
Sioux Falls is 8 points higher.
Fort Thompson: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Fort Thompson: 41/100 · Sioux Falls: 100/100
Sioux Falls is 59 points higher.
Fort Thompson: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fort Thompson: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Fort Thompson: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Fort Thompson: 54/100 · Sioux Falls: 51/100
Fort Thompson is 3 points higher.
Fort Thompson: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Fort Thompson: 26/100 · Sioux Falls: 21/100
Fort Thompson is 5 points higher.
Fort Thompson: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Sioux Falls: Air quality signal derived from the latest EPA AirNow combined AQI grid.