City vs city
Ashton-Sandy Spring vs Olney, MD
Ashton-Sandy Spring and Olney are tied on overall score, with the biggest factor difference in flood.
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
Ashton-Sandy Spring: 34/100 · Olney: 34/100
No gap.
Flood
Ashton-Sandy Spring: 24/100 · Olney: 24/100
No gap.
Ashton-Sandy Spring: FEMA NFHL flood zones: 5 features intersect this tile.
Olney: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Ashton-Sandy Spring: 21/100 · Olney: 21/100
No gap.
Ashton-Sandy Spring: Wind exposure derived from ingested design wind / climatology tiles.
Olney: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ashton-Sandy Spring: 37/100 · Olney: 37/100
No gap.
Ashton-Sandy Spring: Lightning exposure derived from ingested climatology tiles.
Olney: Lightning exposure derived from ingested climatology tiles.
Tornado
Ashton-Sandy Spring: 12/100 · Olney: 12/100
No gap.
Ashton-Sandy Spring: Tornado risk derived from NOAA SPC historical reports.
Olney: Tornado risk derived from NOAA SPC historical reports.
Hail
Ashton-Sandy Spring: 63/100 · Olney: 63/100
No gap.
Ashton-Sandy Spring: Hail risk derived from NOAA SPC historical reports.
Olney: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ashton-Sandy Spring: Unavailable · Olney: Unavailable
A score difference cannot be calculated without both sources.
Ashton-Sandy Spring: Storm surge model is not available for this location yet.
Olney: Storm surge model is not available for this location yet.
Wildfire
Ashton-Sandy Spring: 40/100 · Olney: 40/100
No gap.
Ashton-Sandy Spring: Wildfire exposure derived from ingested fire potential tiles.
Olney: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ashton-Sandy Spring: 43/100 · Olney: 43/100
No gap.
Ashton-Sandy Spring: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Olney: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.