City vs city
Graham vs South Hill, WA
Graham and South Hill are tied on overall score, with the biggest factor difference in flood.
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
Graham: 19/100 · South Hill: 19/100
No gap.
Flood
Graham: 26/100 · South Hill: 30/100
South Hill is 4 points higher.
Graham: FEMA NFHL flood zones: 14 features intersect this tile.
South Hill: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Graham: 7/100 · South Hill: 7/100
No gap.
Graham: Wind exposure derived from ingested design wind / climatology tiles.
South Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Graham: 2/100 · South Hill: 2/100
No gap.
Graham: Lightning exposure derived from ingested climatology tiles.
South Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Graham: 0/100 · South Hill: 0/100
No gap.
Graham: Tornado risk derived from NOAA SPC historical reports.
South Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Graham: 0/100 · South Hill: 0/100
No gap.
Graham: Hail risk derived from NOAA SPC historical reports.
South Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Graham: Unavailable · South Hill: Unavailable
A score difference cannot be calculated without both sources.
Graham: Storm surge model is not available for this location yet.
South Hill: Storm surge model is not available for this location yet.
Wildfire
Graham: 52/100 · South Hill: 49/100
Graham is 3 points higher.
Graham: Wildfire exposure derived from ingested fire potential tiles.
South Hill: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Graham: 8/100 · South Hill: 8/100
No gap.
Graham: Air quality signal derived from the latest EPA AirNow combined AQI grid.
South Hill: Air quality signal derived from the latest EPA AirNow combined AQI grid.