City vs city
Alta vs Storm Lake, IA
Storm Lake currently scores 7 points higher overall than Alta, 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 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
Alta: 32/100 · Storm Lake: 39/100
Storm Lake is 7 points higher.
Flood
Alta: 43/100 · Storm Lake: 59/100
Storm Lake is 16 points higher.
Alta: FEMA NFHL flood zones: 4 features intersect this tile.
Storm Lake: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Alta: 19/100 · Storm Lake: 19/100
No gap.
Alta: Wind exposure derived from ingested design wind / climatology tiles.
Storm Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alta: 56/100 · Storm Lake: 55/100
Alta is 1 points higher.
Alta: Lightning exposure derived from ingested climatology tiles.
Storm Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
Alta: 23/100 · Storm Lake: 31/100
Storm Lake is 8 points higher.
Alta: Tornado risk derived from NOAA SPC historical reports.
Storm Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
Alta: 26/100 · Storm Lake: 67/100
Storm Lake is 41 points higher.
Alta: Hail risk derived from NOAA SPC historical reports.
Storm Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alta: Unavailable · Storm Lake: Unavailable
A score difference cannot be calculated without both sources.
Alta: Storm surge model is not available for this location yet.
Storm Lake: Storm surge model is not available for this location yet.
Wildfire
Alta: 36/100 · Storm Lake: 24/100
Alta is 12 points higher.
Alta: Wildfire exposure derived from ingested fire potential tiles.
Storm Lake: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Alta: 20/100 · Storm Lake: 19/100
Alta is 1 points higher.
Alta: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Storm Lake: Air quality signal derived from the latest EPA AirNow combined AQI grid.