City vs city
Columbia vs Florissant, MO
Florissant currently scores 3 points higher overall than Columbia, with the largest gap in current air quality.
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
Columbia: 44/100 · Florissant: 47/100
Florissant is 3 points higher.
Flood
Columbia: 40/100 · Florissant: 42/100
Florissant is 2 points higher.
Columbia: FEMA NFHL flood zones: 12 features intersect this tile.
Florissant: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Columbia: 17/100 · Florissant: 16/100
Columbia is 1 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Florissant: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 46/100 · Florissant: 43/100
Columbia is 3 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Florissant: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 69/100 · Florissant: 69/100
No gap.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Florissant: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 100/100 · Florissant: 100/100
No gap.
Columbia: Hail risk derived from NOAA SPC historical reports.
Florissant: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Florissant: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Florissant: Storm surge model is not available for this location yet.
Wildfire
Columbia: 22/100 · Florissant: 34/100
Florissant is 12 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Florissant: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 12/100 · Florissant: 28/100
Florissant is 16 points higher.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Florissant: Air quality signal derived from the latest EPA AirNow combined AQI grid.