City vs city
Arthur vs Grand Forks, ND
Grand Forks currently scores 2 points higher overall than Arthur, 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
Arthur: 30/100 · Grand Forks: 32/100
Grand Forks is 2 points higher.
Flood
Arthur: 23/100 · Grand Forks: 41/100
Grand Forks is 18 points higher.
Arthur: FEMA NFHL flood zones: 3 features intersect this tile.
Grand Forks: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Arthur: 19/100 · Grand Forks: 18/100
Arthur is 1 points higher.
Arthur: Wind exposure derived from ingested design wind / climatology tiles.
Grand Forks: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Arthur: 26/100 · Grand Forks: 19/100
Arthur is 7 points higher.
Arthur: Lightning exposure derived from ingested climatology tiles.
Grand Forks: Lightning exposure derived from ingested climatology tiles.
Tornado
Arthur: 23/100 · Grand Forks: 4/100
Arthur is 19 points higher.
Arthur: Tornado risk derived from NOAA SPC historical reports.
Grand Forks: Tornado risk derived from NOAA SPC historical reports.
Hail
Arthur: 49/100 · Grand Forks: 100/100
Grand Forks is 51 points higher.
Arthur: Hail risk derived from NOAA SPC historical reports.
Grand Forks: Hail risk derived from NOAA SPC historical reports.
Storm surge
Arthur: Unavailable · Grand Forks: Unavailable
A score difference cannot be calculated without both sources.
Arthur: Storm surge model is not available for this location yet.
Grand Forks: Storm surge model is not available for this location yet.
Wildfire
Arthur: 32/100 · Grand Forks: 27/100
Arthur is 5 points higher.
Arthur: Wildfire exposure derived from ingested fire potential tiles.
Grand Forks: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Arthur: 37/100 · Grand Forks: 14/100
Arthur is 23 points higher.
Arthur: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Grand Forks: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.