City vs city
Great Falls vs Helena, MT
Helena currently scores 2 points higher overall than Great Falls, with the largest gap in wildfire.
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 · Helena: 34/100
Helena is 2 points higher.
Flood
Great Falls: 30/100 · Helena: 17/100
Great Falls is 13 points higher.
Great Falls: FEMA NFHL flood zones: 4 features intersect this tile.
Helena: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Great Falls: 16/100 · Helena: 15/100
Great Falls is 1 points higher.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
Helena: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Great Falls: 11/100 · Helena: 9/100
Great Falls is 2 points higher.
Great Falls: Lightning exposure derived from ingested climatology tiles.
Helena: Lightning exposure derived from ingested climatology tiles.
Tornado
Great Falls: 8/100 · Helena: 4/100
Great Falls is 4 points higher.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
Helena: Tornado risk derived from NOAA SPC historical reports.
Hail
Great Falls: 100/100 · Helena: 100/100
No gap.
Great Falls: Hail risk derived from NOAA SPC historical reports.
Helena: Hail risk derived from NOAA SPC historical reports.
Storm surge
Great Falls: Unavailable · Helena: Unavailable
A score difference cannot be calculated without both sources.
Great Falls: Storm surge model is not available for this location yet.
Helena: Storm surge model is not available for this location yet.
Wildfire
Great Falls: 33/100 · Helena: 77/100
Helena is 44 points higher.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
Helena: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Great Falls: 29/100 · Helena: 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.
Helena: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.