City vs city
Astoria vs Sioux Falls, SD
Sioux Falls currently scores 15 points higher overall than Astoria, 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
Astoria: 35/100 · Sioux Falls: 50/100
Sioux Falls is 15 points higher.
Flood
Astoria: 59/100 · Sioux Falls: 52/100
Astoria is 7 points higher.
Astoria: FEMA NFHL flood zones: 7 features intersect this tile.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Astoria: 20/100 · Sioux Falls: 20/100
No gap.
Astoria: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Astoria: 53/100 · Sioux Falls: 46/100
Astoria is 7 points higher.
Astoria: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Astoria: 4/100 · Sioux Falls: 58/100
Sioux Falls is 54 points higher.
Astoria: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Astoria: 50/100 · Sioux Falls: 100/100
Sioux Falls is 50 points higher.
Astoria: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Astoria: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Astoria: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Astoria: 37/100 · Sioux Falls: 51/100
Sioux Falls is 14 points higher.
Astoria: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Astoria: 19/100 · Sioux Falls: 21/100
Sioux Falls is 2 points higher.
Astoria: 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.