City vs city
Underwood vs Williston, ND
Williston currently scores 8 points higher overall than Underwood, 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
Underwood: 27/100 · Williston: 35/100
Williston is 8 points higher.
Flood
Underwood: 36/100 · Williston: 41/100
Williston is 5 points higher.
Underwood: FEMA NFHL flood zones: 1 features intersect this tile.
Williston: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Underwood: 18/100 · Williston: 18/100
No gap.
Underwood: Wind exposure derived from ingested design wind / climatology tiles.
Williston: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Underwood: 27/100 · Williston: 19/100
Underwood is 8 points higher.
Underwood: Lightning exposure derived from ingested climatology tiles.
Williston: Lightning exposure derived from ingested climatology tiles.
Tornado
Underwood: 4/100 · Williston: 4/100
No gap.
Underwood: Tornado risk derived from NOAA SPC historical reports.
Williston: Tornado risk derived from NOAA SPC historical reports.
Hail
Underwood: 51/100 · Williston: 100/100
Williston is 49 points higher.
Underwood: Hail risk derived from NOAA SPC historical reports.
Williston: Hail risk derived from NOAA SPC historical reports.
Storm surge
Underwood: Unavailable · Williston: Unavailable
A score difference cannot be calculated without both sources.
Underwood: Storm surge model is not available for this location yet.
Williston: Storm surge model is not available for this location yet.
Wildfire
Underwood: 18/100 · Williston: 37/100
Williston is 19 points higher.
Underwood: Wildfire exposure derived from ingested fire potential tiles.
Williston: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Underwood: 38/100 · Williston: 23/100
Underwood is 15 points higher.
Underwood: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Williston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.