City vs city
Great Falls vs Helena Valley Northwest, MT
Great Falls currently scores 10 points higher overall than Helena Valley Northwest, 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 · Helena Valley Northwest: 22/100
Great Falls is 10 points higher.
Flood
Great Falls: 30/100 · Helena Valley Northwest: 26/100
Great Falls is 4 points higher.
Great Falls: FEMA NFHL flood zones: 4 features intersect this tile.
Helena Valley Northwest: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Great Falls: 16/100 · Helena Valley Northwest: 15/100
Great Falls is 1 points higher.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
Helena Valley Northwest: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Great Falls: 11/100 · Helena Valley Northwest: 11/100
No gap.
Great Falls: Lightning exposure derived from ingested climatology tiles.
Helena Valley Northwest: Lightning exposure derived from ingested climatology tiles.
Tornado
Great Falls: 8/100 · Helena Valley Northwest: 0/100
Great Falls is 8 points higher.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
Helena Valley Northwest: Tornado risk derived from NOAA SPC historical reports.
Hail
Great Falls: 100/100 · Helena Valley Northwest: 8/100
Great Falls is 92 points higher.
Great Falls: Hail risk derived from NOAA SPC historical reports.
Helena Valley Northwest: Hail risk derived from NOAA SPC historical reports.
Storm surge
Great Falls: Unavailable · Helena Valley Northwest: Unavailable
A score difference cannot be calculated without both sources.
Great Falls: Storm surge model is not available for this location yet.
Helena Valley Northwest: Storm surge model is not available for this location yet.
Wildfire
Great Falls: 33/100 · Helena Valley Northwest: 56/100
Helena Valley Northwest is 23 points higher.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
Helena Valley Northwest: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Great Falls: 29/100 · Helena Valley Northwest: 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 Valley Northwest: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.