City vs city
Charleston vs Vivian, WV
Charleston currently scores 9 points higher overall than Vivian, 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
Charleston: 49/100 · Vivian: 40/100
Charleston is 9 points higher.
Flood
Charleston: 77/100 · Vivian: 88/100
Vivian is 11 points higher.
Charleston: FEMA NFHL flood zones: 12 features intersect this tile.
Vivian: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Charleston: 15/100 · Vivian: 16/100
Vivian is 1 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Vivian: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 32/100 · Vivian: 25/100
Charleston is 7 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Vivian: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 12/100 · Vivian: 0/100
Charleston is 12 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Vivian: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Vivian: 22/100
Charleston is 78 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Vivian: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: Unavailable · Vivian: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge model is not available for this location yet.
Vivian: Storm surge model is not available for this location yet.
Wildfire
Charleston: 63/100 · Vivian: 48/100
Charleston is 15 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Vivian: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charleston: 47/100 · Vivian: 39/100
Charleston is 8 points higher.
Charleston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Vivian: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.