City vs city
Detroit vs St. Johns, MI
Detroit currently scores 6 points higher overall than St. Johns, 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
Detroit: 34/100 · St. Johns: 28/100
Detroit is 6 points higher.
Flood
Detroit: 44/100 · St. Johns: 51/100
St. Johns is 7 points higher.
Detroit: FEMA NFHL flood zones: 2 features intersect this tile.
St. Johns: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Detroit: 16/100 · St. Johns: 15/100
Detroit is 1 points higher.
Detroit: Wind exposure derived from ingested design wind / climatology tiles.
St. Johns: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Detroit: 42/100 · St. Johns: 25/100
Detroit is 17 points higher.
Detroit: Lightning exposure derived from ingested climatology tiles.
St. Johns: Lightning exposure derived from ingested climatology tiles.
Tornado
Detroit: 0/100 · St. Johns: 23/100
St. Johns is 23 points higher.
Detroit: Tornado risk derived from NOAA SPC historical reports.
St. Johns: Tornado risk derived from NOAA SPC historical reports.
Hail
Detroit: 19/100 · St. Johns: 20/100
St. Johns is 1 points higher.
Detroit: Hail risk derived from NOAA SPC historical reports.
St. Johns: Hail risk derived from NOAA SPC historical reports.
Storm surge
Detroit: Unavailable · St. Johns: Unavailable
A score difference cannot be calculated without both sources.
Detroit: Storm surge model is not available for this location yet.
St. Johns: Storm surge model is not available for this location yet.
Wildfire
Detroit: 53/100 · St. Johns: 34/100
Detroit is 19 points higher.
Detroit: Wildfire exposure derived from ingested fire potential tiles.
St. Johns: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Detroit: 30/100 · St. Johns: 30/100
No gap.
Detroit: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Johns: Air quality signal derived from the latest EPA AirNow combined AQI grid.