City vs city
Shackle Island vs Walnut Grove, TN
Walnut Grove currently scores 4 points higher overall than Shackle Island, 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 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
Shackle Island: 31/100 · Walnut Grove: 35/100
Walnut Grove is 4 points higher.
Flood
Shackle Island: 39/100 · Walnut Grove: 31/100
Shackle Island is 8 points higher.
Shackle Island: FEMA NFHL flood zones: 12 features intersect this tile.
Walnut Grove: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Shackle Island: 14/100 · Walnut Grove: 14/100
No gap.
Shackle Island: Wind exposure derived from ingested design wind / climatology tiles.
Walnut Grove: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Shackle Island: 49/100 · Walnut Grove: 51/100
Walnut Grove is 2 points higher.
Shackle Island: Lightning exposure derived from ingested climatology tiles.
Walnut Grove: Lightning exposure derived from ingested climatology tiles.
Tornado
Shackle Island: 19/100 · Walnut Grove: 38/100
Walnut Grove is 19 points higher.
Shackle Island: Tornado risk derived from NOAA SPC historical reports.
Walnut Grove: Tornado risk derived from NOAA SPC historical reports.
Hail
Shackle Island: 37/100 · Walnut Grove: 56/100
Walnut Grove is 19 points higher.
Shackle Island: Hail risk derived from NOAA SPC historical reports.
Walnut Grove: Hail risk derived from NOAA SPC historical reports.
Storm surge
Shackle Island: Unavailable · Walnut Grove: Unavailable
A score difference cannot be calculated without both sources.
Shackle Island: Storm surge model is not available for this location yet.
Walnut Grove: Storm surge model is not available for this location yet.
Wildfire
Shackle Island: 19/100 · Walnut Grove: 18/100
Shackle Island is 1 points higher.
Shackle Island: Wildfire exposure derived from ingested fire potential tiles.
Walnut Grove: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Shackle Island: 37/100 · Walnut Grove: 37/100
No gap.
Shackle Island: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Walnut Grove: Air quality signal derived from the latest EPA AirNow combined AQI grid.