City vs city
Chattanooga vs Shackle Island, TN
Chattanooga currently scores 10 points higher overall than Shackle Island, with the largest gap in wildfire.
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
Chattanooga: 41/100 · Shackle Island: 31/100
Chattanooga is 10 points higher.
Flood
Chattanooga: 37/100 · Shackle Island: 39/100
Shackle Island is 2 points higher.
Chattanooga: FEMA NFHL flood zones: 7 features intersect this tile.
Shackle Island: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Chattanooga: 14/100 · Shackle Island: 14/100
No gap.
Chattanooga: Wind exposure derived from ingested design wind / climatology tiles.
Shackle Island: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chattanooga: 52/100 · Shackle Island: 49/100
Chattanooga is 3 points higher.
Chattanooga: Lightning exposure derived from ingested climatology tiles.
Shackle Island: Lightning exposure derived from ingested climatology tiles.
Tornado
Chattanooga: 4/100 · Shackle Island: 19/100
Shackle Island is 15 points higher.
Chattanooga: Tornado risk derived from NOAA SPC historical reports.
Shackle Island: Tornado risk derived from NOAA SPC historical reports.
Hail
Chattanooga: 75/100 · Shackle Island: 37/100
Chattanooga is 38 points higher.
Chattanooga: Hail risk derived from NOAA SPC historical reports.
Shackle Island: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chattanooga: Unavailable · Shackle Island: Unavailable
A score difference cannot be calculated without both sources.
Chattanooga: Storm surge model is not available for this location yet.
Shackle Island: Storm surge model is not available for this location yet.
Wildfire
Chattanooga: 69/100 · Shackle Island: 19/100
Chattanooga is 50 points higher.
Chattanooga: Wildfire exposure derived from ingested fire potential tiles.
Shackle Island: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chattanooga: 36/100 · Shackle Island: 37/100
Shackle Island is 1 points higher.
Chattanooga: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Shackle Island: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.