City vs city
Petersburg vs South Hill, VA
Petersburg currently scores 4 points higher overall than South Hill, 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
Petersburg: 38/100 · South Hill: 34/100
Petersburg is 4 points higher.
Flood
Petersburg: 33/100 · South Hill: 26/100
Petersburg is 7 points higher.
Petersburg: FEMA NFHL flood zones: 11 features intersect this tile.
South Hill: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Petersburg: 21/100 · South Hill: 21/100
No gap.
Petersburg: Wind exposure derived from ingested design wind / climatology tiles.
South Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Petersburg: 49/100 · South Hill: 47/100
Petersburg is 2 points higher.
Petersburg: Lightning exposure derived from ingested climatology tiles.
South Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Petersburg: 31/100 · South Hill: 19/100
Petersburg is 12 points higher.
Petersburg: Tornado risk derived from NOAA SPC historical reports.
South Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Petersburg: 52/100 · South Hill: 51/100
Petersburg is 1 points higher.
Petersburg: Hail risk derived from NOAA SPC historical reports.
South Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Petersburg: 32/100 · South Hill: Unavailable
A score difference cannot be calculated without both sources.
Petersburg: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
South Hill: Storm surge model is not available for this location yet.
Wildfire
Petersburg: 57/100 · South Hill: 42/100
Petersburg is 15 points higher.
Petersburg: Wildfire exposure derived from ingested fire potential tiles.
South Hill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Petersburg: 31/100 · South Hill: 32/100
South Hill is 1 points higher.
Petersburg: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Hill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.