City vs city
Gregory vs Yankton, SD
Yankton currently scores 8 points higher overall than Gregory, 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 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
Gregory: 40/100 · Yankton: 48/100
Yankton is 8 points higher.
Flood
Gregory: Unavailable · Yankton: 50/100
A score difference cannot be calculated without both sources.
Gregory: Flood model is not available for this location yet.
Yankton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Gregory: 21/100 · Yankton: 21/100
No gap.
Gregory: Wind exposure derived from ingested design wind / climatology tiles.
Yankton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gregory: 32/100 · Yankton: 32/100
No gap.
Gregory: Lightning exposure derived from ingested climatology tiles.
Yankton: Lightning exposure derived from ingested climatology tiles.
Tornado
Gregory: 46/100 · Yankton: 31/100
Gregory is 15 points higher.
Gregory: Tornado risk derived from NOAA SPC historical reports.
Yankton: Tornado risk derived from NOAA SPC historical reports.
Hail
Gregory: 100/100 · Yankton: 100/100
No gap.
Gregory: Hail risk derived from NOAA SPC historical reports.
Yankton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gregory: Unavailable · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Gregory: Storm surge model is not available for this location yet.
Yankton: Storm surge model is not available for this location yet.
Wildfire
Gregory: 40/100 · Yankton: 54/100
Yankton is 14 points higher.
Gregory: Wildfire exposure derived from ingested fire potential tiles.
Yankton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gregory: Unavailable · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Gregory: Air quality model is not available for this location yet.
Yankton: Air quality model is not available for this location yet.