City vs city
Alvord vs Rock Valley, IA
Rock Valley currently scores 14 points higher overall than Alvord, 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
Alvord: 33/100 · Rock Valley: 47/100
Rock Valley is 14 points higher.
Flood
Alvord: 52/100 · Rock Valley: 67/100
Rock Valley is 15 points higher.
Alvord: FEMA NFHL flood zones: 3 features intersect this tile.
Rock Valley: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Alvord: 20/100 · Rock Valley: 20/100
No gap.
Alvord: Wind exposure derived from ingested design wind / climatology tiles.
Rock Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alvord: 45/100 · Rock Valley: 48/100
Rock Valley is 3 points higher.
Alvord: Lightning exposure derived from ingested climatology tiles.
Rock Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Alvord: 23/100 · Rock Valley: 35/100
Rock Valley is 12 points higher.
Alvord: Tornado risk derived from NOAA SPC historical reports.
Rock Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Alvord: 23/100 · Rock Valley: 100/100
Rock Valley is 77 points higher.
Alvord: Hail risk derived from NOAA SPC historical reports.
Rock Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alvord: Unavailable · Rock Valley: Unavailable
A score difference cannot be calculated without both sources.
Alvord: Storm surge model is not available for this location yet.
Rock Valley: Storm surge model is not available for this location yet.
Wildfire
Alvord: 45/100 · Rock Valley: 39/100
Alvord is 6 points higher.
Alvord: Wildfire exposure derived from ingested fire potential tiles.
Rock Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alvord: 21/100 · Rock Valley: 22/100
Rock Valley is 1 points higher.
Alvord: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rock Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.