City vs city
Harrisville vs St. Marys, WV
Harrisville currently scores 6 points higher overall than St. Marys, 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
Harrisville: 37/100 · St. Marys: 31/100
Harrisville is 6 points higher.
Flood
Harrisville: 57/100 · St. Marys: 56/100
Harrisville is 1 points higher.
Harrisville: FEMA NFHL flood zones: 3 features intersect this tile.
St. Marys: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Harrisville: 17/100 · St. Marys: 17/100
No gap.
Harrisville: Wind exposure derived from ingested design wind / climatology tiles.
St. Marys: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harrisville: 34/100 · St. Marys: 33/100
Harrisville is 1 points higher.
Harrisville: Lightning exposure derived from ingested climatology tiles.
St. Marys: Lightning exposure derived from ingested climatology tiles.
Tornado
Harrisville: 0/100 · St. Marys: 0/100
No gap.
Harrisville: Tornado risk derived from NOAA SPC historical reports.
St. Marys: Tornado risk derived from NOAA SPC historical reports.
Hail
Harrisville: 39/100 · St. Marys: 7/100
Harrisville is 32 points higher.
Harrisville: Hail risk derived from NOAA SPC historical reports.
St. Marys: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harrisville: Unavailable · St. Marys: Unavailable
A score difference cannot be calculated without both sources.
Harrisville: Storm surge model is not available for this location yet.
St. Marys: Storm surge model is not available for this location yet.
Wildfire
Harrisville: 35/100 · St. Marys: 32/100
Harrisville is 3 points higher.
Harrisville: Wildfire exposure derived from ingested fire potential tiles.
St. Marys: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harrisville: 39/100 · St. Marys: 38/100
Harrisville is 1 points higher.
Harrisville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
St. Marys: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.