City vs city
Forty Mile Colony vs Great Falls, MT
Great Falls currently scores 9 points higher overall than Forty Mile Colony, 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
Forty Mile Colony: 23/100 · Great Falls: 32/100
Great Falls is 9 points higher.
Flood
Forty Mile Colony: Unavailable · Great Falls: 30/100
A score difference cannot be calculated without both sources.
Forty Mile Colony: Flood model is not available for this location yet.
Great Falls: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Forty Mile Colony: 18/100 · Great Falls: 16/100
Forty Mile Colony is 2 points higher.
Forty Mile Colony: Wind exposure derived from ingested design wind / climatology tiles.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Forty Mile Colony: 18/100 · Great Falls: 11/100
Forty Mile Colony is 7 points higher.
Forty Mile Colony: Lightning exposure derived from ingested climatology tiles.
Great Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Forty Mile Colony: 0/100 · Great Falls: 8/100
Great Falls is 8 points higher.
Forty Mile Colony: Tornado risk derived from NOAA SPC historical reports.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Forty Mile Colony: 15/100 · Great Falls: 100/100
Great Falls is 85 points higher.
Forty Mile Colony: Hail risk derived from NOAA SPC historical reports.
Great Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Forty Mile Colony: Unavailable · Great Falls: Unavailable
A score difference cannot be calculated without both sources.
Forty Mile Colony: Storm surge model is not available for this location yet.
Great Falls: Storm surge model is not available for this location yet.
Wildfire
Forty Mile Colony: 64/100 · Great Falls: 33/100
Forty Mile Colony is 31 points higher.
Forty Mile Colony: Wildfire exposure derived from ingested fire potential tiles.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Forty Mile Colony: 20/100 · Great Falls: 29/100
Great Falls is 9 points higher.
Forty Mile Colony: 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.