City vs city
Allen vs Frederick, MD
Frederick currently scores 8 points higher overall than Allen, 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
Allen: 27/100 · Frederick: 35/100
Frederick is 8 points higher.
Flood
Allen: 22/100 · Frederick: 20/100
Allen is 2 points higher.
Allen: FEMA NFHL flood zones: 5 features intersect this tile.
Frederick: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Allen: 27/100 · Frederick: 20/100
Allen is 7 points higher.
Allen: Wind exposure derived from ingested design wind / climatology tiles.
Frederick: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Allen: 23/100 · Frederick: 26/100
Frederick is 3 points higher.
Allen: Lightning exposure derived from ingested climatology tiles.
Frederick: Lightning exposure derived from ingested climatology tiles.
Tornado
Allen: 0/100 · Frederick: 15/100
Frederick is 15 points higher.
Allen: Tornado risk derived from NOAA SPC historical reports.
Frederick: Tornado risk derived from NOAA SPC historical reports.
Hail
Allen: 32/100 · Frederick: 74/100
Frederick is 42 points higher.
Allen: Hail risk derived from NOAA SPC historical reports.
Frederick: Hail risk derived from NOAA SPC historical reports.
Storm surge
Allen: 2/100 · Frederick: Unavailable
A score difference cannot be calculated without both sources.
Allen: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Frederick: Storm surge model is not available for this location yet.
Wildfire
Allen: 52/100 · Frederick: 47/100
Allen is 5 points higher.
Allen: Wildfire exposure derived from ingested fire potential tiles.
Frederick: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Allen: 28/100 · Frederick: 42/100
Frederick is 14 points higher.
Allen: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Frederick: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.