City vs city
Parkersburg vs Shell Rock, IA
Shell Rock currently scores 2 points higher overall than Parkersburg, 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
Parkersburg: 35/100 · Shell Rock: 37/100
Shell Rock is 2 points higher.
Flood
Parkersburg: 69/100 · Shell Rock: 71/100
Shell Rock is 2 points higher.
Parkersburg: FEMA NFHL flood zones: 7 features intersect this tile.
Shell Rock: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Parkersburg: 18/100 · Shell Rock: 17/100
Parkersburg is 1 points higher.
Parkersburg: Wind exposure derived from ingested design wind / climatology tiles.
Shell Rock: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Parkersburg: 26/100 · Shell Rock: 23/100
Parkersburg is 3 points higher.
Parkersburg: Lightning exposure derived from ingested climatology tiles.
Shell Rock: Lightning exposure derived from ingested climatology tiles.
Tornado
Parkersburg: 4/100 · Shell Rock: 0/100
Parkersburg is 4 points higher.
Parkersburg: Tornado risk derived from NOAA SPC historical reports.
Shell Rock: Tornado risk derived from NOAA SPC historical reports.
Hail
Parkersburg: 78/100 · Shell Rock: 56/100
Parkersburg is 22 points higher.
Parkersburg: Hail risk derived from NOAA SPC historical reports.
Shell Rock: Hail risk derived from NOAA SPC historical reports.
Storm surge
Parkersburg: Unavailable · Shell Rock: Unavailable
A score difference cannot be calculated without both sources.
Parkersburg: Storm surge model is not available for this location yet.
Shell Rock: Storm surge model is not available for this location yet.
Wildfire
Parkersburg: 31/100 · Shell Rock: 35/100
Shell Rock is 4 points higher.
Parkersburg: Wildfire exposure derived from ingested fire potential tiles.
Shell Rock: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Parkersburg: 21/100 · Shell Rock: 21/100
No gap.
Parkersburg: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Shell Rock: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.