City vs city
Christiana vs Unionville, TN
Christiana currently scores 8 points higher overall than Unionville, 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 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
Christiana: 39/100 · Unionville: 31/100
Christiana is 8 points higher.
Flood
Christiana: 34/100 · Unionville: 28/100
Christiana is 6 points higher.
Christiana: FEMA NFHL flood zones: 10 features intersect this tile.
Unionville: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Christiana: 14/100 · Unionville: 14/100
No gap.
Christiana: Wind exposure derived from ingested design wind / climatology tiles.
Unionville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Christiana: 51/100 · Unionville: 55/100
Unionville is 4 points higher.
Christiana: Lightning exposure derived from ingested climatology tiles.
Unionville: Lightning exposure derived from ingested climatology tiles.
Tornado
Christiana: 46/100 · Unionville: 27/100
Christiana is 19 points higher.
Christiana: Tornado risk derived from NOAA SPC historical reports.
Unionville: Tornado risk derived from NOAA SPC historical reports.
Hail
Christiana: 64/100 · Unionville: 28/100
Christiana is 36 points higher.
Christiana: Hail risk derived from NOAA SPC historical reports.
Unionville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Christiana: Unavailable · Unionville: Unavailable
A score difference cannot be calculated without both sources.
Christiana: Storm surge model is not available for this location yet.
Unionville: Storm surge model is not available for this location yet.
Wildfire
Christiana: 33/100 · Unionville: 34/100
Unionville is 1 points higher.
Christiana: Wildfire exposure derived from ingested fire potential tiles.
Unionville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Christiana: 31/100 · Unionville: 29/100
Christiana is 2 points higher.
Christiana: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Unionville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.