City vs city
Chesapeake vs Portsmouth, OH
Portsmouth currently scores 1 points higher overall than Chesapeake, with the largest gap in tornado.
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
Chesapeake: 45/100 · Portsmouth: 46/100
Portsmouth is 1 points higher.
Flood
Chesapeake: 28/100 · Portsmouth: 41/100
Portsmouth is 13 points higher.
Chesapeake: FEMA NFHL flood zones: 5 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Chesapeake: 15/100 · Portsmouth: 15/100
No gap.
Chesapeake: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chesapeake: 43/100 · Portsmouth: 34/100
Chesapeake is 9 points higher.
Chesapeake: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Chesapeake: 0/100 · Portsmouth: 35/100
Portsmouth is 35 points higher.
Chesapeake: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Chesapeake: 100/100 · Portsmouth: 100/100
No gap.
Chesapeake: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chesapeake: Unavailable · Portsmouth: Unavailable
A score difference cannot be calculated without both sources.
Chesapeake: Storm surge model is not available for this location yet.
Portsmouth: Storm surge model is not available for this location yet.
Wildfire
Chesapeake: 49/100 · Portsmouth: 58/100
Portsmouth is 9 points higher.
Chesapeake: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chesapeake: 36/100 · Portsmouth: 41/100
Portsmouth is 5 points higher.
Chesapeake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Portsmouth: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.