City vs city
Affton vs Webster Groves, MO
Affton and Webster Groves are tied on overall score, with the biggest factor difference in flood.
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
Affton: 39/100 · Webster Groves: 39/100
No gap.
Flood
Affton: 32/100 · Webster Groves: 32/100
No gap.
Affton: FEMA NFHL flood zones: 3 features intersect this tile.
Webster Groves: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Affton: 16/100 · Webster Groves: 16/100
No gap.
Affton: Wind exposure derived from ingested design wind / climatology tiles.
Webster Groves: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Affton: 41/100 · Webster Groves: 41/100
No gap.
Affton: Lightning exposure derived from ingested climatology tiles.
Webster Groves: Lightning exposure derived from ingested climatology tiles.
Tornado
Affton: 12/100 · Webster Groves: 12/100
No gap.
Affton: Tornado risk derived from NOAA SPC historical reports.
Webster Groves: Tornado risk derived from NOAA SPC historical reports.
Hail
Affton: 100/100 · Webster Groves: 100/100
No gap.
Affton: Hail risk derived from NOAA SPC historical reports.
Webster Groves: Hail risk derived from NOAA SPC historical reports.
Storm surge
Affton: Unavailable · Webster Groves: Unavailable
A score difference cannot be calculated without both sources.
Affton: Storm surge model is not available for this location yet.
Webster Groves: Storm surge model is not available for this location yet.
Wildfire
Affton: 44/100 · Webster Groves: 44/100
No gap.
Affton: Wildfire exposure derived from ingested fire potential tiles.
Webster Groves: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Affton: 27/100 · Webster Groves: 27/100
No gap.
Affton: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Webster Groves: Air quality signal derived from the latest EPA AirNow combined AQI grid.