City vs city
Ludden vs Williston, ND
Williston currently scores 8 points higher overall than Ludden, 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
Ludden: 27/100 · Williston: 35/100
Williston is 8 points higher.
Flood
Ludden: 55/100 · Williston: 41/100
Ludden is 14 points higher.
Ludden: FEMA NFHL flood zones: 7 features intersect this tile.
Williston: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Ludden: 20/100 · Williston: 18/100
Ludden is 2 points higher.
Ludden: Wind exposure derived from ingested design wind / climatology tiles.
Williston: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ludden: 32/100 · Williston: 19/100
Ludden is 13 points higher.
Ludden: Lightning exposure derived from ingested climatology tiles.
Williston: Lightning exposure derived from ingested climatology tiles.
Tornado
Ludden: 12/100 · Williston: 4/100
Ludden is 8 points higher.
Ludden: Tornado risk derived from NOAA SPC historical reports.
Williston: Tornado risk derived from NOAA SPC historical reports.
Hail
Ludden: 24/100 · Williston: 100/100
Williston is 76 points higher.
Ludden: Hail risk derived from NOAA SPC historical reports.
Williston: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ludden: Unavailable · Williston: Unavailable
A score difference cannot be calculated without both sources.
Ludden: Storm surge model is not available for this location yet.
Williston: Storm surge model is not available for this location yet.
Wildfire
Ludden: 37/100 · Williston: 37/100
No gap.
Ludden: Wildfire exposure derived from ingested fire potential tiles.
Williston: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ludden: 9/100 · Williston: 23/100
Williston is 14 points higher.
Ludden: 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.