City vs city
Lewistown vs Roundup, MT
Lewistown currently scores 1 points higher overall than Roundup, with the largest gap in tornado.
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 is a current EPA AirNow signal; 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
Lewistown: 33/100 · Roundup: 32/100
Lewistown is 1 points higher.
Flood
Lewistown: 32/100 · Roundup: 34/100
Roundup is 2 points higher.
Lewistown: FEMA NFHL flood zones: 6 features intersect this tile.
Roundup: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Lewistown: 17/100 · Roundup: 17/100
No gap.
Lewistown: Wind exposure derived from ingested design wind / climatology tiles.
Roundup: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lewistown: 21/100 · Roundup: 15/100
Lewistown is 6 points higher.
Lewistown: Lightning exposure derived from ingested climatology tiles.
Roundup: Lightning exposure derived from ingested climatology tiles.
Tornado
Lewistown: 19/100 · Roundup: 4/100
Lewistown is 15 points higher.
Lewistown: Tornado risk derived from NOAA SPC historical reports.
Roundup: Tornado risk derived from NOAA SPC historical reports.
Hail
Lewistown: 93/100 · Roundup: 100/100
Roundup is 7 points higher.
Lewistown: Hail risk derived from NOAA SPC historical reports.
Roundup: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lewistown: Unavailable · Roundup: Unavailable
A score difference cannot be calculated without both sources.
Lewistown: Storm surge model is not available for this location yet.
Roundup: Storm surge model is not available for this location yet.
Wildfire
Lewistown: 34/100 · Roundup: 39/100
Roundup is 5 points higher.
Lewistown: Wildfire exposure derived from ingested fire potential tiles.
Roundup: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Lewistown: 15/100 · Roundup: 15/100
No gap.
Lewistown: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Roundup: Air quality signal derived from the latest EPA AirNow combined AQI grid.