City vs city
Great Falls vs Reston, VA
Reston currently scores 3 points higher overall than Great Falls, 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
Great Falls: 34/100 · Reston: 37/100
Reston is 3 points higher.
Flood
Great Falls: 17/100 · Reston: 24/100
Reston is 7 points higher.
Great Falls: FEMA NFHL flood zones: 5 features intersect this tile.
Reston: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Great Falls: 20/100 · Reston: 20/100
No gap.
Great Falls: Wind exposure derived from ingested design wind / climatology tiles.
Reston: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Great Falls: 36/100 · Reston: 38/100
Reston is 2 points higher.
Great Falls: Lightning exposure derived from ingested climatology tiles.
Reston: Lightning exposure derived from ingested climatology tiles.
Tornado
Great Falls: 8/100 · Reston: 12/100
Reston is 4 points higher.
Great Falls: Tornado risk derived from NOAA SPC historical reports.
Reston: Tornado risk derived from NOAA SPC historical reports.
Hail
Great Falls: 78/100 · Reston: 85/100
Reston is 7 points higher.
Great Falls: Hail risk derived from NOAA SPC historical reports.
Reston: Hail risk derived from NOAA SPC historical reports.
Storm surge
Great Falls: Unavailable · Reston: Unavailable
A score difference cannot be calculated without both sources.
Great Falls: Storm surge model is not available for this location yet.
Reston: Storm surge model is not available for this location yet.
Wildfire
Great Falls: 40/100 · Reston: 41/100
Reston is 1 points higher.
Great Falls: Wildfire exposure derived from ingested fire potential tiles.
Reston: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Great Falls: 41/100 · Reston: 41/100
No gap.
Great Falls: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Reston: Air quality signal derived from the latest EPA AirNow combined AQI grid.