City vs city
Green Valley vs New Underwood, SD
Green Valley currently scores 11 points higher overall than New 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 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
Green Valley: 43/100 · New Underwood: 32/100
Green Valley is 11 points higher.
Flood
Green Valley: 53/100 · New Underwood: 54/100
New Underwood is 1 points higher.
Green Valley: FEMA NFHL flood zones: 8 features intersect this tile.
New Underwood: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Green Valley: 20/100 · New Underwood: 20/100
No gap.
Green Valley: Wind exposure derived from ingested design wind / climatology tiles.
New Underwood: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Green Valley: 23/100 · New Underwood: 23/100
No gap.
Green Valley: Lightning exposure derived from ingested climatology tiles.
New Underwood: Lightning exposure derived from ingested climatology tiles.
Tornado
Green Valley: 23/100 · New Underwood: 4/100
Green Valley is 19 points higher.
Green Valley: Tornado risk derived from NOAA SPC historical reports.
New Underwood: Tornado risk derived from NOAA SPC historical reports.
Hail
Green Valley: 100/100 · New Underwood: 40/100
Green Valley is 60 points higher.
Green Valley: Hail risk derived from NOAA SPC historical reports.
New Underwood: Hail risk derived from NOAA SPC historical reports.
Storm surge
Green Valley: Unavailable · New Underwood: Unavailable
A score difference cannot be calculated without both sources.
Green Valley: Storm surge model is not available for this location yet.
New Underwood: Storm surge model is not available for this location yet.
Wildfire
Green Valley: 57/100 · New Underwood: 54/100
Green Valley is 3 points higher.
Green Valley: Wildfire exposure derived from ingested fire potential tiles.
New Underwood: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Green Valley: 28/100 · New Underwood: 27/100
Green Valley is 1 points higher.
Green Valley: Air quality signal derived from the latest EPA AirNow combined AQI grid.
New Underwood: Air quality signal derived from the latest EPA AirNow combined AQI grid.