City vs city
Chesapeake vs Portsmouth, VA
Portsmouth currently scores 7 points higher overall than Chesapeake, 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
Chesapeake: 35/100 · Portsmouth: 42/100
Portsmouth is 7 points higher.
Flood
Chesapeake: 26/100 · Portsmouth: 44/100
Portsmouth is 18 points higher.
Chesapeake: FEMA NFHL flood zones: 3 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 27 features intersect this tile.
Wind
Chesapeake: 27/100 · Portsmouth: 26/100
Chesapeake is 1 points higher.
Chesapeake: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chesapeake: 42/100 · Portsmouth: 45/100
Portsmouth is 3 points higher.
Chesapeake: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Chesapeake: 8/100 · Portsmouth: 19/100
Portsmouth is 11 points higher.
Chesapeake: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Chesapeake: 18/100 · Portsmouth: 76/100
Portsmouth is 58 points higher.
Chesapeake: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chesapeake: 78/100 · Portsmouth: 91/100
Portsmouth is 13 points higher.
Chesapeake: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Portsmouth: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Chesapeake: 55/100 · Portsmouth: 10/100
Chesapeake is 45 points higher.
Chesapeake: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chesapeake: 26/100 · Portsmouth: 25/100
Chesapeake is 1 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.