City vs city
Butler vs Slippery Rock, PA
Slippery Rock currently scores 5 points higher overall than Butler, 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
Butler: 34/100 · Slippery Rock: 39/100
Slippery Rock is 5 points higher.
Flood
Butler: 56/100 · Slippery Rock: 68/100
Slippery Rock is 12 points higher.
Butler: FEMA NFHL flood zones: 1 features intersect this tile.
Slippery Rock: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Butler: 18/100 · Slippery Rock: 18/100
No gap.
Butler: Wind exposure derived from ingested design wind / climatology tiles.
Slippery Rock: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Butler: 34/100 · Slippery Rock: 36/100
Slippery Rock is 2 points higher.
Butler: Lightning exposure derived from ingested climatology tiles.
Slippery Rock: Lightning exposure derived from ingested climatology tiles.
Tornado
Butler: 8/100 · Slippery Rock: 4/100
Butler is 4 points higher.
Butler: Tornado risk derived from NOAA SPC historical reports.
Slippery Rock: Tornado risk derived from NOAA SPC historical reports.
Hail
Butler: 43/100 · Slippery Rock: 68/100
Slippery Rock is 25 points higher.
Butler: Hail risk derived from NOAA SPC historical reports.
Slippery Rock: Hail risk derived from NOAA SPC historical reports.
Storm surge
Butler: Unavailable · Slippery Rock: Unavailable
A score difference cannot be calculated without both sources.
Butler: Storm surge model is not available for this location yet.
Slippery Rock: Storm surge model is not available for this location yet.
Wildfire
Butler: 39/100 · Slippery Rock: 39/100
No gap.
Butler: Wildfire exposure derived from ingested fire potential tiles.
Slippery Rock: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Butler: 38/100 · Slippery Rock: 37/100
Butler is 1 points higher.
Butler: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Slippery Rock: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.