City vs city
Allen vs Porcupine, SD
Porcupine currently scores 4 points higher overall than Allen, with the largest gap in tornado.
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
Allen: 35/100 · Porcupine: 39/100
Porcupine is 4 points higher.
Flood
Allen: Unavailable · Porcupine: Unavailable
A score difference cannot be calculated without both sources.
Allen: Flood model is not available for this location yet.
Porcupine: Flood model is not available for this location yet.
Wind
Allen: 20/100 · Porcupine: 20/100
No gap.
Allen: Wind exposure derived from ingested design wind / climatology tiles.
Porcupine: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Allen: 38/100 · Porcupine: 39/100
Porcupine is 1 points higher.
Allen: Lightning exposure derived from ingested climatology tiles.
Porcupine: Lightning exposure derived from ingested climatology tiles.
Tornado
Allen: 27/100 · Porcupine: 0/100
Allen is 27 points higher.
Allen: Tornado risk derived from NOAA SPC historical reports.
Porcupine: Tornado risk derived from NOAA SPC historical reports.
Hail
Allen: 63/100 · Porcupine: 68/100
Porcupine is 5 points higher.
Allen: Hail risk derived from NOAA SPC historical reports.
Porcupine: Hail risk derived from NOAA SPC historical reports.
Storm surge
Allen: Unavailable · Porcupine: Unavailable
A score difference cannot be calculated without both sources.
Allen: Storm surge model is not available for this location yet.
Porcupine: Storm surge model is not available for this location yet.
Wildfire
Allen: 63/100 · Porcupine: 75/100
Porcupine is 12 points higher.
Allen: Wildfire exposure derived from ingested fire potential tiles.
Porcupine: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Allen: 32/100 · Porcupine: 33/100
Porcupine is 1 points higher.
Allen: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Porcupine: Air quality signal derived from the latest EPA AirNow combined AQI grid.