City vs city
Lake Norden vs Sioux Falls, SD
Sioux Falls currently scores 13 points higher overall than Lake Norden, with the largest gap in tornado.
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
Lake Norden: 37/100 · Sioux Falls: 50/100
Sioux Falls is 13 points higher.
Flood
Lake Norden: 28/100 · Sioux Falls: 52/100
Sioux Falls is 24 points higher.
Lake Norden: FEMA NFHL flood zones: 5 features intersect this tile.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Lake Norden: 20/100 · Sioux Falls: 20/100
No gap.
Lake Norden: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lake Norden: 54/100 · Sioux Falls: 46/100
Lake Norden is 8 points higher.
Lake Norden: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Lake Norden: 0/100 · Sioux Falls: 58/100
Sioux Falls is 58 points higher.
Lake Norden: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Lake Norden: 69/100 · Sioux Falls: 100/100
Sioux Falls is 31 points higher.
Lake Norden: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lake Norden: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Lake Norden: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Lake Norden: 27/100 · Sioux Falls: 51/100
Sioux Falls is 24 points higher.
Lake Norden: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Lake Norden: 21/100 · Sioux Falls: 21/100
No gap.
Lake Norden: 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.