City vs city
Columbia vs Grain Valley, MO
Columbia and Grain Valley are tied on overall score, with the biggest factor difference 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
Columbia: 44/100 · Grain Valley: 44/100
No gap.
Flood
Columbia: 40/100 · Grain Valley: 44/100
Grain Valley is 4 points higher.
Columbia: FEMA NFHL flood zones: 12 features intersect this tile.
Grain Valley: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Columbia: 17/100 · Grain Valley: 18/100
Grain Valley is 1 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Grain Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 46/100 · Grain Valley: 75/100
Grain Valley is 29 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Grain Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 69/100 · Grain Valley: 8/100
Columbia is 61 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Grain Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 100/100 · Grain Valley: 100/100
No gap.
Columbia: Hail risk derived from NOAA SPC historical reports.
Grain Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Grain Valley: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Grain Valley: Storm surge model is not available for this location yet.
Wildfire
Columbia: 22/100 · Grain Valley: 37/100
Grain Valley is 15 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Grain Valley: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 12/100 · Grain Valley: 25/100
Grain Valley is 13 points higher.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Grain Valley: Air quality signal derived from the latest EPA AirNow combined AQI grid.