City vs city
Groton vs Mamanasco Lake, CT
Groton currently scores 20 points higher overall than Mamanasco Lake, 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 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
Groton: 43/100 · Mamanasco Lake: 23/100
Groton is 20 points higher.
Flood
Groton: 97/100 · Mamanasco Lake: 22/100
Groton is 75 points higher.
Groton: FEMA NFHL flood zones: 19 features intersect this tile.
Mamanasco Lake: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Groton: 35/100 · Mamanasco Lake: 23/100
Groton is 12 points higher.
Groton: Wind exposure derived from ingested design wind / climatology tiles.
Mamanasco Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Groton: 9/100 · Mamanasco Lake: 19/100
Mamanasco Lake is 10 points higher.
Groton: Lightning exposure derived from ingested climatology tiles.
Mamanasco Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
Groton: 0/100 · Mamanasco Lake: 8/100
Mamanasco Lake is 8 points higher.
Groton: Tornado risk derived from NOAA SPC historical reports.
Mamanasco Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
Groton: 6/100 · Mamanasco Lake: 6/100
No gap.
Groton: Hail risk derived from NOAA SPC historical reports.
Mamanasco Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
Groton: 97/100 · Mamanasco Lake: Unavailable
A score difference cannot be calculated without both sources.
Groton: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Mamanasco Lake: Storm surge model is not available for this location yet.
Wildfire
Groton: 27/100 · Mamanasco Lake: 53/100
Mamanasco Lake is 26 points higher.
Groton: Wildfire exposure derived from ingested fire potential tiles.
Mamanasco Lake: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Groton: 33/100 · Mamanasco Lake: 29/100
Groton is 4 points higher.
Groton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mamanasco Lake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.