City vs city
Isabel vs Watertown, SD
Watertown currently scores 13 points higher overall than Isabel, with the largest gap in flood.
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 is a current EPA AirNow signal; 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
Isabel: 37/100 · Watertown: 50/100
Watertown is 13 points higher.
Flood
Isabel: 41/100 · Watertown: 79/100
Watertown is 38 points higher.
Isabel: FEMA NFHL flood zones: 1 features intersect this tile.
Watertown: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Isabel: 20/100 · Watertown: 20/100
No gap.
Isabel: Wind exposure derived from ingested design wind / climatology tiles.
Watertown: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Isabel: 24/100 · Watertown: 42/100
Watertown is 18 points higher.
Isabel: Lightning exposure derived from ingested climatology tiles.
Watertown: Lightning exposure derived from ingested climatology tiles.
Tornado
Isabel: 12/100 · Watertown: 0/100
Isabel is 12 points higher.
Isabel: Tornado risk derived from NOAA SPC historical reports.
Watertown: Tornado risk derived from NOAA SPC historical reports.
Hail
Isabel: 100/100 · Watertown: 100/100
No gap.
Isabel: Hail risk derived from NOAA SPC historical reports.
Watertown: Hail risk derived from NOAA SPC historical reports.
Storm surge
Isabel: Unavailable · Watertown: Unavailable
A score difference cannot be calculated without both sources.
Isabel: Storm surge model is not available for this location yet.
Watertown: Storm surge model is not available for this location yet.
Wildfire
Isabel: 46/100 · Watertown: 38/100
Isabel is 8 points higher.
Isabel: Wildfire exposure derived from ingested fire potential tiles.
Watertown: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Isabel: 19/100 · Watertown: 21/100
Watertown is 2 points higher.
Isabel: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Watertown: Air quality signal derived from the latest EPA AirNow combined AQI grid.