City vs city
Gambrills vs Severn, MD
Gambrills currently scores 3 points higher overall than Severn, with the largest gap in tornado.
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
Gambrills: 33/100 · Severn: 30/100
Gambrills is 3 points higher.
Flood
Gambrills: 21/100 · Severn: 22/100
Severn is 1 points higher.
Gambrills: FEMA NFHL flood zones: 3 features intersect this tile.
Severn: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Gambrills: 21/100 · Severn: 21/100
No gap.
Gambrills: Wind exposure derived from ingested design wind / climatology tiles.
Severn: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gambrills: 40/100 · Severn: 40/100
No gap.
Gambrills: Lightning exposure derived from ingested climatology tiles.
Severn: Lightning exposure derived from ingested climatology tiles.
Tornado
Gambrills: 42/100 · Severn: 8/100
Gambrills is 34 points higher.
Gambrills: Tornado risk derived from NOAA SPC historical reports.
Severn: Tornado risk derived from NOAA SPC historical reports.
Hail
Gambrills: 48/100 · Severn: 52/100
Severn is 4 points higher.
Gambrills: Hail risk derived from NOAA SPC historical reports.
Severn: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gambrills: Unavailable · Severn: Unavailable
A score difference cannot be calculated without both sources.
Gambrills: Storm surge model is not available for this location yet.
Severn: Storm surge model is not available for this location yet.
Wildfire
Gambrills: 20/100 · Severn: 25/100
Severn is 5 points higher.
Gambrills: Wildfire exposure derived from ingested fire potential tiles.
Severn: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gambrills: 42/100 · Severn: 42/100
No gap.
Gambrills: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Severn: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.