City vs city
Grand Pass vs Saint Louis, MO
Grand Pass currently scores 1 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
Grand Pass: 37/100 · Saint Louis: 36/100
Grand Pass is 1 points higher.
Flood
Grand Pass: 100/100 · Saint Louis: 7/100
Grand Pass is 93 points higher.
Grand Pass: FEMA NFHL flood zones: 6 features intersect this tile.
Saint Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Grand Pass: 18/100 · Saint Louis: 16/100
Grand Pass is 2 points higher.
Grand Pass: Wind exposure derived from ingested design wind / climatology tiles.
Saint Louis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Pass: 48/100 · Saint Louis: 37/100
Grand Pass is 11 points higher.
Grand Pass: Lightning exposure derived from ingested climatology tiles.
Saint Louis: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Pass: 8/100 · Saint Louis: 35/100
Saint Louis is 27 points higher.
Grand Pass: Tornado risk derived from NOAA SPC historical reports.
Saint Louis: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Pass: 26/100 · Saint Louis: 100/100
Saint Louis is 74 points higher.
Grand Pass: Hail risk derived from NOAA SPC historical reports.
Saint Louis: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Pass: Unavailable · Saint Louis: Unavailable
A score difference cannot be calculated without both sources.
Grand Pass: Storm surge model is not available for this location yet.
Saint Louis: Storm surge model is not available for this location yet.
Wildfire
Grand Pass: 34/100 · Saint Louis: 29/100
Grand Pass is 5 points higher.
Grand Pass: Wildfire exposure derived from ingested fire potential tiles.
Saint Louis: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Pass: 26/100 · Saint Louis: 28/100
Saint Louis is 2 points higher.
Grand Pass: 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.