City vs city
Dover vs Port Penn, DE
Dover and Port Penn are tied on overall score, with the biggest factor difference in storm surge.
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
Dover: 34/100 · Port Penn: 34/100
No gap.
Flood
Dover: 32/100 · Port Penn: 18/100
Dover is 14 points higher.
Dover: FEMA NFHL flood zones: 6 features intersect this tile.
Port Penn: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Dover: 23/100 · Port Penn: 22/100
Dover is 1 points higher.
Dover: Wind exposure derived from ingested design wind / climatology tiles.
Port Penn: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dover: 26/100 · Port Penn: 36/100
Port Penn is 10 points higher.
Dover: Lightning exposure derived from ingested climatology tiles.
Port Penn: Lightning exposure derived from ingested climatology tiles.
Tornado
Dover: 23/100 · Port Penn: 0/100
Dover is 23 points higher.
Dover: Tornado risk derived from NOAA SPC historical reports.
Port Penn: Tornado risk derived from NOAA SPC historical reports.
Hail
Dover: 22/100 · Port Penn: 13/100
Dover is 9 points higher.
Dover: Hail risk derived from NOAA SPC historical reports.
Port Penn: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dover: 61/100 · Port Penn: 98/100
Port Penn is 37 points higher.
Dover: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Port Penn: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Dover: 43/100 · Port Penn: 11/100
Dover is 32 points higher.
Dover: Wildfire exposure derived from ingested fire potential tiles.
Port Penn: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Dover: 40/100 · Port Penn: 39/100
Dover is 1 points higher.
Dover: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Port Penn: Air quality signal derived from the latest EPA AirNow combined AQI grid.
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