City vs city
Knoxville vs Portland, TN
Knoxville currently scores 5 points higher overall than Portland, 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 is a current EPA AirNow signal; 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
Knoxville: 42/100 · Portland: 37/100
Knoxville is 5 points higher.
Flood
Knoxville: 29/100 · Portland: 28/100
Knoxville is 1 points higher.
Knoxville: FEMA NFHL flood zones: 7 features intersect this tile.
Portland: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Knoxville: 13/100 · Portland: 14/100
Portland is 1 points higher.
Knoxville: Wind exposure derived from ingested design wind / climatology tiles.
Portland: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Knoxville: 40/100 · Portland: 52/100
Portland is 12 points higher.
Knoxville: Lightning exposure derived from ingested climatology tiles.
Portland: Lightning exposure derived from ingested climatology tiles.
Tornado
Knoxville: 31/100 · Portland: 38/100
Portland is 7 points higher.
Knoxville: Tornado risk derived from NOAA SPC historical reports.
Portland: Tornado risk derived from NOAA SPC historical reports.
Hail
Knoxville: 100/100 · Portland: 64/100
Knoxville is 36 points higher.
Knoxville: Hail risk derived from NOAA SPC historical reports.
Portland: Hail risk derived from NOAA SPC historical reports.
Storm surge
Knoxville: Unavailable · Portland: Unavailable
A score difference cannot be calculated without both sources.
Knoxville: Storm surge model is not available for this location yet.
Portland: Storm surge model is not available for this location yet.
Wildfire
Knoxville: 48/100 · Portland: 26/100
Knoxville is 22 points higher.
Knoxville: Wildfire exposure derived from ingested fire potential tiles.
Portland: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Knoxville: 33/100 · Portland: 36/100
Portland is 3 points higher.
Knoxville: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Portland: Air quality signal derived from the latest EPA AirNow combined AQI grid.