City vs city
Greenville vs Troy, AL
Greenville currently scores 4 points higher overall than Troy, 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
Greenville: 49/100 · Troy: 45/100
Greenville is 4 points higher.
Flood
Greenville: 34/100 · Troy: 50/100
Troy is 16 points higher.
Greenville: FEMA NFHL flood zones: 5 features intersect this tile.
Troy: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Greenville: 26/100 · Troy: 23/100
Greenville is 3 points higher.
Greenville: Wind exposure derived from ingested design wind / climatology tiles.
Troy: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Greenville: 79/100 · Troy: 79/100
No gap.
Greenville: Lightning exposure derived from ingested climatology tiles.
Troy: Lightning exposure derived from ingested climatology tiles.
Tornado
Greenville: 62/100 · Troy: 46/100
Greenville is 16 points higher.
Greenville: Tornado risk derived from NOAA SPC historical reports.
Troy: Tornado risk derived from NOAA SPC historical reports.
Hail
Greenville: 51/100 · Troy: 33/100
Greenville is 18 points higher.
Greenville: Hail risk derived from NOAA SPC historical reports.
Troy: Hail risk derived from NOAA SPC historical reports.
Storm surge
Greenville: Unavailable · Troy: Unavailable
A score difference cannot be calculated without both sources.
Greenville: Storm surge model is not available for this location yet.
Troy: Storm surge model is not available for this location yet.
Wildfire
Greenville: 61/100 · Troy: 59/100
Greenville is 2 points higher.
Greenville: Wildfire exposure derived from ingested fire potential tiles.
Troy: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Greenville: 28/100 · Troy: 28/100
No gap.
Greenville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Troy: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.