City vs city
Gray Summit vs Saint Louis, MO
Gray Summit currently scores 6 points higher overall than Saint Louis, with the largest gap 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 uses an ingested EPA AirNow snapshot and may not reflect current conditions; 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
Gray Summit: 42/100 · Saint Louis: 36/100
Gray Summit is 6 points higher.
Flood
Gray Summit: 47/100 · Saint Louis: 7/100
Gray Summit is 40 points higher.
Gray Summit: FEMA NFHL flood zones: 8 features intersect this tile.
Saint Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Gray Summit: 16/100 · Saint Louis: 16/100
No gap.
Gray Summit: Wind exposure derived from ingested design wind / climatology tiles.
Saint Louis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gray Summit: 49/100 · Saint Louis: 37/100
Gray Summit is 12 points higher.
Gray Summit: Lightning exposure derived from ingested climatology tiles.
Saint Louis: Lightning exposure derived from ingested climatology tiles.
Tornado
Gray Summit: 15/100 · Saint Louis: 35/100
Saint Louis is 20 points higher.
Gray Summit: Tornado risk derived from NOAA SPC historical reports.
Saint Louis: Tornado risk derived from NOAA SPC historical reports.
Hail
Gray Summit: 100/100 · Saint Louis: 100/100
No gap.
Gray Summit: Hail risk derived from NOAA SPC historical reports.
Saint Louis: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gray Summit: Unavailable · Saint Louis: Unavailable
A score difference cannot be calculated without both sources.
Gray Summit: Storm surge model is not available for this location yet.
Saint Louis: Storm surge model is not available for this location yet.
Wildfire
Gray Summit: 43/100 · Saint Louis: 29/100
Gray Summit is 14 points higher.
Gray Summit: Wildfire exposure derived from ingested fire potential tiles.
Saint Louis: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gray Summit: 26/100 · Saint Louis: 28/100
Saint Louis is 2 points higher.
Gray Summit: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Saint Louis: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.