City vs city
Aberdeen vs Johnson Siding, SD
Aberdeen currently scores 6 points higher overall than Johnson Siding, 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
Aberdeen: 53/100 · Johnson Siding: 47/100
Aberdeen is 6 points higher.
Flood
Aberdeen: 71/100 · Johnson Siding: 44/100
Aberdeen is 27 points higher.
Aberdeen: FEMA NFHL flood zones: 14 features intersect this tile.
Johnson Siding: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Aberdeen: 20/100 · Johnson Siding: 19/100
Aberdeen is 1 points higher.
Aberdeen: Wind exposure derived from ingested design wind / climatology tiles.
Johnson Siding: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Aberdeen: 32/100 · Johnson Siding: 23/100
Aberdeen is 9 points higher.
Aberdeen: Lightning exposure derived from ingested climatology tiles.
Johnson Siding: Lightning exposure derived from ingested climatology tiles.
Tornado
Aberdeen: 50/100 · Johnson Siding: 0/100
Aberdeen is 50 points higher.
Aberdeen: Tornado risk derived from NOAA SPC historical reports.
Johnson Siding: Tornado risk derived from NOAA SPC historical reports.
Hail
Aberdeen: 100/100 · Johnson Siding: 100/100
No gap.
Aberdeen: Hail risk derived from NOAA SPC historical reports.
Johnson Siding: Hail risk derived from NOAA SPC historical reports.
Storm surge
Aberdeen: Unavailable · Johnson Siding: Unavailable
A score difference cannot be calculated without both sources.
Aberdeen: Storm surge model is not available for this location yet.
Johnson Siding: Storm surge model is not available for this location yet.
Wildfire
Aberdeen: 44/100 · Johnson Siding: 69/100
Johnson Siding is 25 points higher.
Aberdeen: Wildfire exposure derived from ingested fire potential tiles.
Johnson Siding: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Aberdeen: Unavailable · Johnson Siding: 27/100
A score difference cannot be calculated without both sources.
Aberdeen: Air quality model is not available for this location yet.
Johnson Siding: Air quality signal derived from the latest EPA AirNow combined AQI grid.