City vs city
Fort Lewis vs Steilacoom, WA
Steilacoom currently scores 12 points higher overall than Fort Lewis, with the largest gap 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
Fort Lewis: 15/100 · Steilacoom: 27/100
Steilacoom is 12 points higher.
Flood
Fort Lewis: 22/100 · Steilacoom: 65/100
Steilacoom is 43 points higher.
Fort Lewis: FEMA NFHL flood zones: 5 features intersect this tile.
Steilacoom: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Fort Lewis: 7/100 · Steilacoom: 7/100
No gap.
Fort Lewis: Wind exposure derived from ingested design wind / climatology tiles.
Steilacoom: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fort Lewis: 2/100 · Steilacoom: 2/100
No gap.
Fort Lewis: Lightning exposure derived from ingested climatology tiles.
Steilacoom: Lightning exposure derived from ingested climatology tiles.
Tornado
Fort Lewis: 4/100 · Steilacoom: 0/100
Fort Lewis is 4 points higher.
Fort Lewis: Tornado risk derived from NOAA SPC historical reports.
Steilacoom: Tornado risk derived from NOAA SPC historical reports.
Hail
Fort Lewis: 2/100 · Steilacoom: 0/100
Fort Lewis is 2 points higher.
Fort Lewis: Hail risk derived from NOAA SPC historical reports.
Steilacoom: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fort Lewis: Unavailable · Steilacoom: Unavailable
A score difference cannot be calculated without both sources.
Fort Lewis: Storm surge model is not available for this location yet.
Steilacoom: Storm surge model is not available for this location yet.
Wildfire
Fort Lewis: 56/100 · Steilacoom: 50/100
Fort Lewis is 6 points higher.
Fort Lewis: Wildfire exposure derived from ingested fire potential tiles.
Steilacoom: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Fort Lewis: 9/100 · Steilacoom: 9/100
No gap.
Fort Lewis: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Steilacoom: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.