City vs city
Harrisburg vs Yankton, SD
Harrisburg currently scores 8 points higher overall than Yankton, 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
Harrisburg: 56/100 · Yankton: 48/100
Harrisburg is 8 points higher.
Flood
Harrisburg: 84/100 · Yankton: 50/100
Harrisburg is 34 points higher.
Harrisburg: FEMA NFHL flood zones: 9 features intersect this tile.
Yankton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Harrisburg: 20/100 · Yankton: 21/100
Yankton is 1 points higher.
Harrisburg: Wind exposure derived from ingested design wind / climatology tiles.
Yankton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harrisburg: 43/100 · Yankton: 32/100
Harrisburg is 11 points higher.
Harrisburg: Lightning exposure derived from ingested climatology tiles.
Yankton: Lightning exposure derived from ingested climatology tiles.
Tornado
Harrisburg: 69/100 · Yankton: 31/100
Harrisburg is 38 points higher.
Harrisburg: Tornado risk derived from NOAA SPC historical reports.
Yankton: Tornado risk derived from NOAA SPC historical reports.
Hail
Harrisburg: 100/100 · Yankton: 100/100
No gap.
Harrisburg: Hail risk derived from NOAA SPC historical reports.
Yankton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harrisburg: Unavailable · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Harrisburg: Storm surge model is not available for this location yet.
Yankton: Storm surge model is not available for this location yet.
Wildfire
Harrisburg: 53/100 · Yankton: 54/100
Yankton is 1 points higher.
Harrisburg: Wildfire exposure derived from ingested fire potential tiles.
Yankton: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harrisburg: 21/100 · Yankton: Unavailable
A score difference cannot be calculated without both sources.
Harrisburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Yankton: Air quality model is not available for this location yet.