City vs city
Basin vs Great Falls, MT
Great Falls currently scores 6 points higher overall than Basin, 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
Basin: 26/100 · Great Falls: 32/100
Great Falls is 6 points higher.
Flood
Basin: Unavailable · Great Falls: 30/100
A score difference cannot be calculated without both sources.
Basin: Flood model is not available for this location yet.
Great Falls: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Basin: 15/100 · Great Falls: 16/100
Great Falls is 1 points higher.
Basin: Wind exposure derived from ingested design wind / climatology tiles.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Basin: 8/100 · Great Falls: 11/100
Great Falls is 3 points higher.
Basin: Lightning exposure derived from ingested climatology tiles.
Great Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Basin: 0/100 · Great Falls: 8/100
Great Falls is 8 points higher.
Basin: Tornado risk derived from NOAA SPC historical reports.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Basin: 36/100 · Great Falls: 100/100
Great Falls is 64 points higher.
Basin: Hail risk derived from NOAA SPC historical reports.
Great Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Basin: Unavailable · Great Falls: Unavailable
A score difference cannot be calculated without both sources.
Basin: Storm surge model is not available for this location yet.
Great Falls: Storm surge model is not available for this location yet.
Wildfire
Basin: 80/100 · Great Falls: 33/100
Basin is 47 points higher.
Basin: Wildfire exposure derived from ingested fire potential tiles.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Basin: 15/100 · Great Falls: 29/100
Great Falls is 14 points higher.
Basin: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.
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