City vs city
Great Falls vs South Hills, MT
Great Falls currently scores 8 points higher overall than South Hills, 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
Great Falls: 32/100 · South Hills: 24/100
Great Falls is 8 points higher.
Flood
Great Falls: 30/100 · South Hills: 10/100
Great Falls is 20 points higher.
Great Falls: FEMA NFHL flood zones: 4 features intersect this tile.
South Hills: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Great Falls: 16/100 · South Hills: 15/100
Great Falls is 1 points higher.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
South Hills: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Great Falls: 11/100 · South Hills: 9/100
Great Falls is 2 points higher.
Great Falls: Lightning exposure derived from ingested climatology tiles.
South Hills: Lightning exposure derived from ingested climatology tiles.
Tornado
Great Falls: 8/100 · South Hills: 0/100
Great Falls is 8 points higher.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
South Hills: Tornado risk derived from NOAA SPC historical reports.
Hail
Great Falls: 100/100 · South Hills: 29/100
Great Falls is 71 points higher.
Great Falls: Hail risk derived from NOAA SPC historical reports.
South Hills: Hail risk derived from NOAA SPC historical reports.
Storm surge
Great Falls: Unavailable · South Hills: Unavailable
A score difference cannot be calculated without both sources.
Great Falls: Storm surge model is not available for this location yet.
South Hills: Storm surge model is not available for this location yet.
Wildfire
Great Falls: 33/100 · South Hills: 65/100
South Hills is 32 points higher.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
South Hills: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Great Falls: 29/100 · South Hills: 13/100
Great Falls is 16 points higher.
Great Falls: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Hills: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.