City vs city
Grand Pass vs St. Louis, MO
St. Louis currently scores 1 points higher overall than Grand Pass, with the largest gap in hail.
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 · St. Louis: 38/100
St. Louis is 1 points higher.
Flood
Grand Pass: 100/100 · St. Louis: 32/100
Grand Pass is 68 points higher.
Grand Pass: FEMA NFHL flood zones: 6 features intersect this tile.
St. Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Grand Pass: 18/100 · St. Louis: 16/100
Grand Pass is 2 points higher.
Grand Pass: Wind exposure derived from ingested design wind / climatology tiles.
St. Louis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Grand Pass: 48/100 · St. Louis: 39/100
Grand Pass is 9 points higher.
Grand Pass: Lightning exposure derived from ingested climatology tiles.
St. Louis: Lightning exposure derived from ingested climatology tiles.
Tornado
Grand Pass: 8/100 · St. Louis: 15/100
St. Louis is 7 points higher.
Grand Pass: Tornado risk derived from NOAA SPC historical reports.
St. Louis: Tornado risk derived from NOAA SPC historical reports.
Hail
Grand Pass: 26/100 · St. Louis: 100/100
St. Louis is 74 points higher.
Grand Pass: Hail risk derived from NOAA SPC historical reports.
St. Louis: Hail risk derived from NOAA SPC historical reports.
Storm surge
Grand Pass: Unavailable · St. Louis: Unavailable
A score difference cannot be calculated without both sources.
Grand Pass: Storm surge model is not available for this location yet.
St. Louis: Storm surge model is not available for this location yet.
Wildfire
Grand Pass: 34/100 · St. Louis: 38/100
St. Louis is 4 points higher.
Grand Pass: Wildfire exposure derived from ingested fire potential tiles.
St. Louis: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Grand Pass: 26/100 · St. Louis: 27/100
St. Louis is 1 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.
St. 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.