City vs city
Egan vs Rapid City, SD
Rapid City currently scores 8 points higher overall than Egan, 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
Egan: 34/100 · Rapid City: 42/100
Rapid City is 8 points higher.
Flood
Egan: 64/100 · Rapid City: 49/100
Egan is 15 points higher.
Egan: FEMA NFHL flood zones: 10 features intersect this tile.
Rapid City: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Egan: 20/100 · Rapid City: 20/100
No gap.
Egan: Wind exposure derived from ingested design wind / climatology tiles.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Egan: 66/100 · Rapid City: 24/100
Egan is 42 points higher.
Egan: Lightning exposure derived from ingested climatology tiles.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Tornado
Egan: 8/100 · Rapid City: 8/100
No gap.
Egan: Tornado risk derived from NOAA SPC historical reports.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Hail
Egan: 16/100 · Rapid City: 100/100
Rapid City is 84 points higher.
Egan: Hail risk derived from NOAA SPC historical reports.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Egan: Unavailable · Rapid City: Unavailable
A score difference cannot be calculated without both sources.
Egan: Storm surge model is not available for this location yet.
Rapid City: Storm surge model is not available for this location yet.
Wildfire
Egan: 44/100 · Rapid City: 67/100
Rapid City is 23 points higher.
Egan: Wildfire exposure derived from ingested fire potential tiles.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Egan: 19/100 · Rapid City: 29/100
Rapid City is 10 points higher.
Egan: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rapid City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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